./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 b869eaba59e8dca8d7cb2d1135193e506b8377811cada7a7f67b6d0824dd2d3d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:56:36,028 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:56:36,139 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 21:56:36,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:56:36,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:56:36,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:56:36,184 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:56:36,185 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:56:36,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:56:36,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:56:36,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:56:36,193 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:56:36,193 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:56:36,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:56:36,196 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:56:36,196 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:56:36,196 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:56:36,197 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:56:36,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:56:36,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:56:36,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:56:36,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:56:36,199 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 21:56:36,200 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:56:36,200 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:56:36,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:56:36,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:56:36,202 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:56:36,203 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:56:36,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:56:36,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:56:36,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:56:36,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:56:36,206 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:56:36,215 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:56:36,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:56:36,216 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:56:36,216 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:56:36,216 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:56:36,216 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:56:36,217 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:56:36,217 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_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b869eaba59e8dca8d7cb2d1135193e506b8377811cada7a7f67b6d0824dd2d3d [2023-11-06 21:56:36,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:56:36,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:56:36,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:56:36,590 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:56:36,591 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:56:36,592 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2023-11-06 21:56:39,860 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:56:40,060 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:56:40,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2023-11-06 21:56:40,069 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/data/3dcaffb9f/d60c3ac17eaf439b83a73268684d4d62/FLAG2e82c1468 [2023-11-06 21:56:40,084 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/data/3dcaffb9f/d60c3ac17eaf439b83a73268684d4d62 [2023-11-06 21:56:40,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:56:40,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:56:40,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:56:40,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:56:40,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:56:40,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1219991a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40, skipping insertion in model container [2023-11-06 21:56:40,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,152 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:56:40,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:56:40,375 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:56:40,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:56:40,467 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:56:40,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40 WrapperNode [2023-11-06 21:56:40,468 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:56:40,469 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:56:40,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:56:40,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:56:40,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,601 INFO L138 Inliner]: procedures = 25, calls = 56, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 903 [2023-11-06 21:56:40,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:56:40,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:56:40,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:56:40,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:56:40,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,632 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,675 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:56:40,713 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:56:40,714 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:56:40,714 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:56:40,714 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (1/1) ... [2023-11-06 21:56:40,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:56:40,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:56:40,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:56:40,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:56:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:56:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:56:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:56:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:56:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:56:40,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:56:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:56:40,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:56:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:56:40,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:56:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:56:40,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:56:40,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:56:40,806 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:56:40,996 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:56:40,998 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:56:42,251 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:56:42,267 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:56:42,267 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 21:56:42,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:42 BoogieIcfgContainer [2023-11-06 21:56:42,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:56:42,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:56:42,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:56:42,276 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:56:42,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:56:40" (1/3) ... [2023-11-06 21:56:42,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5fff4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:42, skipping insertion in model container [2023-11-06 21:56:42,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:40" (2/3) ... [2023-11-06 21:56:42,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5fff4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:42, skipping insertion in model container [2023-11-06 21:56:42,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:42" (3/3) ... [2023-11-06 21:56:42,279 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2023-11-06 21:56:42,287 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:56:42,298 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:56:42,298 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 154 error locations. [2023-11-06 21:56:42,298 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:56:42,552 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 21:56:42,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1140 places, 1208 transitions, 2430 flow [2023-11-06 21:56:43,615 INFO L124 PetriNetUnfolderBase]: 75/1206 cut-off events. [2023-11-06 21:56:43,616 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 21:56:43,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1215 conditions, 1206 events. 75/1206 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4319 event pairs, 0 based on Foata normal form. 0/977 useless extension candidates. Maximal degree in co-relation 925. Up to 2 conditions per place. [2023-11-06 21:56:43,672 INFO L82 GeneralOperation]: Start removeDead. Operand has 1140 places, 1208 transitions, 2430 flow [2023-11-06 21:56:43,735 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1114 places, 1180 transitions, 2372 flow [2023-11-06 21:56:43,740 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:56:43,761 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1114 places, 1180 transitions, 2372 flow [2023-11-06 21:56:43,765 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1114 places, 1180 transitions, 2372 flow [2023-11-06 21:56:43,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1114 places, 1180 transitions, 2372 flow [2023-11-06 21:56:44,448 INFO L124 PetriNetUnfolderBase]: 73/1180 cut-off events. [2023-11-06 21:56:44,448 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 21:56:44,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 1180 events. 73/1180 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4154 event pairs, 0 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 925. Up to 2 conditions per place. [2023-11-06 21:56:44,653 INFO L119 LiptonReduction]: Number of co-enabled transitions 440316 [2023-11-06 21:57:15,026 INFO L134 LiptonReduction]: Checked pairs total: 1049425 [2023-11-06 21:57:15,026 INFO L136 LiptonReduction]: Total number of compositions: 1323 [2023-11-06 21:57:15,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:57:15,046 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=LoopsAndPotentialCycles, 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;@4a6e0706, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:57:15,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 288 error locations. [2023-11-06 21:57:15,048 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:57:15,048 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 21:57:15,049 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:57:15,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:15,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 21:57:15,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-11-06 21:57:15,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:15,056 INFO L85 PathProgramCache]: Analyzing trace with hash 4943, now seen corresponding path program 1 times [2023-11-06 21:57:15,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:15,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229452256] [2023-11-06 21:57:15,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:15,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:57:15,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:15,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229452256] [2023-11-06 21:57:15,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229452256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:15,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:15,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 21:57:15,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107158467] [2023-11-06 21:57:15,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:15,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:57:15,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:15,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:57:15,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:57:15,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1178 out of 2531 [2023-11-06 21:57:15,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 330 transitions, 672 flow. Second operand has 2 states, 2 states have (on average 1178.5) internal successors, (2357), 2 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:15,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:15,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1178 of 2531 [2023-11-06 21:57:15,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:17,847 INFO L124 PetriNetUnfolderBase]: 9821/19559 cut-off events. [2023-11-06 21:57:17,847 INFO L125 PetriNetUnfolderBase]: For 243/303 co-relation queries the response was YES. [2023-11-06 21:57:17,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34429 conditions, 19559 events. 9821/19559 cut-off events. For 243/303 co-relation queries the response was YES. Maximal size of possible extension queue 524. Compared 163590 event pairs, 7047 based on Foata normal form. 383/16650 useless extension candidates. Maximal degree in co-relation 33717. Up to 14720 conditions per place. [2023-11-06 21:57:18,010 INFO L140 encePairwiseOnDemand]: 2433/2531 looper letters, 134 selfloop transitions, 0 changer transitions 1/232 dead transitions. [2023-11-06 21:57:18,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 232 transitions, 746 flow [2023-11-06 21:57:18,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:57:18,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 21:57:18,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2589 transitions. [2023-11-06 21:57:18,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5114579217700513 [2023-11-06 21:57:18,036 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2589 transitions. [2023-11-06 21:57:18,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2589 transitions. [2023-11-06 21:57:18,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:18,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2589 transitions. [2023-11-06 21:57:18,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1294.5) internal successors, (2589), 2 states have internal predecessors, (2589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:18,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2531.0) internal successors, (7593), 3 states have internal predecessors, (7593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:18,082 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2531.0) internal successors, (7593), 3 states have internal predecessors, (7593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:18,084 INFO L175 Difference]: Start difference. First operand has 303 places, 330 transitions, 672 flow. Second operand 2 states and 2589 transitions. [2023-11-06 21:57:18,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 232 transitions, 746 flow [2023-11-06 21:57:18,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 232 transitions, 738 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 21:57:18,099 INFO L231 Difference]: Finished difference. Result has 206 places, 231 transitions, 465 flow [2023-11-06 21:57:18,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2531, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=465, PETRI_PLACES=206, PETRI_TRANSITIONS=231} [2023-11-06 21:57:18,106 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -97 predicate places. [2023-11-06 21:57:18,106 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 231 transitions, 465 flow [2023-11-06 21:57:18,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1178.5) internal successors, (2357), 2 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:18,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:18,108 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:57:18,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:57:18,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-11-06 21:57:18,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:18,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1466920984, now seen corresponding path program 1 times [2023-11-06 21:57:18,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:18,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500784334] [2023-11-06 21:57:18,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:18,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:57:18,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:18,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500784334] [2023-11-06 21:57:18,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500784334] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:18,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:18,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:57:18,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311063563] [2023-11-06 21:57:18,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:18,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:57:18,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:18,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:57:18,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:57:18,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1166 out of 2531 [2023-11-06 21:57:18,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 231 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 1167.6666666666667) internal successors, (3503), 3 states have internal predecessors, (3503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:18,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:18,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1166 of 2531 [2023-11-06 21:57:18,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:21,014 INFO L124 PetriNetUnfolderBase]: 9821/19560 cut-off events. [2023-11-06 21:57:21,015 INFO L125 PetriNetUnfolderBase]: For 42/102 co-relation queries the response was YES. [2023-11-06 21:57:21,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34331 conditions, 19560 events. 9821/19560 cut-off events. For 42/102 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 163143 event pairs, 7047 based on Foata normal form. 0/16268 useless extension candidates. Maximal degree in co-relation 34328. Up to 14719 conditions per place. [2023-11-06 21:57:21,141 INFO L140 encePairwiseOnDemand]: 2526/2531 looper letters, 132 selfloop transitions, 4 changer transitions 0/233 dead transitions. [2023-11-06 21:57:21,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 233 transitions, 741 flow [2023-11-06 21:57:21,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:57:21,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:57:21,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3636 transitions. [2023-11-06 21:57:21,157 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4788621098380087 [2023-11-06 21:57:21,157 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3636 transitions. [2023-11-06 21:57:21,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3636 transitions. [2023-11-06 21:57:21,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:21,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3636 transitions. [2023-11-06 21:57:21,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1212.0) internal successors, (3636), 3 states have internal predecessors, (3636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:21,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:21,199 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:21,200 INFO L175 Difference]: Start difference. First operand has 206 places, 231 transitions, 465 flow. Second operand 3 states and 3636 transitions. [2023-11-06 21:57:21,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 233 transitions, 741 flow [2023-11-06 21:57:21,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 233 transitions, 741 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:57:21,216 INFO L231 Difference]: Finished difference. Result has 208 places, 233 transitions, 487 flow [2023-11-06 21:57:21,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2531, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=487, PETRI_PLACES=208, PETRI_TRANSITIONS=233} [2023-11-06 21:57:21,218 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -95 predicate places. [2023-11-06 21:57:21,218 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 233 transitions, 487 flow [2023-11-06 21:57:21,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1167.6666666666667) internal successors, (3503), 3 states have internal predecessors, (3503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:21,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:21,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:21,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:57:21,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-11-06 21:57:21,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:21,230 INFO L85 PathProgramCache]: Analyzing trace with hash 727561396, now seen corresponding path program 1 times [2023-11-06 21:57:21,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:21,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353150288] [2023-11-06 21:57:21,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:21,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:21,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:57:21,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:21,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353150288] [2023-11-06 21:57:21,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353150288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:21,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:21,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:57:21,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406753149] [2023-11-06 21:57:21,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:21,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:57:21,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:21,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:57:21,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:57:21,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1153 out of 2531 [2023-11-06 21:57:21,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 233 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 1155.6666666666667) internal successors, (3467), 3 states have internal predecessors, (3467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:21,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:21,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1153 of 2531 [2023-11-06 21:57:21,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:23,805 INFO L124 PetriNetUnfolderBase]: 10215/19916 cut-off events. [2023-11-06 21:57:23,806 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-06 21:57:23,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35304 conditions, 19916 events. 10215/19916 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 547. Compared 164049 event pairs, 3344 based on Foata normal form. 0/16598 useless extension candidates. Maximal degree in co-relation 35299. Up to 15269 conditions per place. [2023-11-06 21:57:23,924 INFO L140 encePairwiseOnDemand]: 2517/2531 looper letters, 157 selfloop transitions, 6 changer transitions 0/250 dead transitions. [2023-11-06 21:57:23,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 250 transitions, 848 flow [2023-11-06 21:57:23,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:57:23,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:57:23,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3628 transitions. [2023-11-06 21:57:23,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4778085078361649 [2023-11-06 21:57:23,938 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3628 transitions. [2023-11-06 21:57:23,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3628 transitions. [2023-11-06 21:57:23,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:23,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3628 transitions. [2023-11-06 21:57:23,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1209.3333333333333) internal successors, (3628), 3 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:23,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:23,973 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:23,973 INFO L175 Difference]: Start difference. First operand has 208 places, 233 transitions, 487 flow. Second operand 3 states and 3628 transitions. [2023-11-06 21:57:23,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 250 transitions, 848 flow [2023-11-06 21:57:23,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 250 transitions, 844 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:57:23,980 INFO L231 Difference]: Finished difference. Result has 202 places, 231 transitions, 509 flow [2023-11-06 21:57:23,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2531, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=509, PETRI_PLACES=202, PETRI_TRANSITIONS=231} [2023-11-06 21:57:23,981 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -101 predicate places. [2023-11-06 21:57:23,982 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 231 transitions, 509 flow [2023-11-06 21:57:23,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1155.6666666666667) internal successors, (3467), 3 states have internal predecessors, (3467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:23,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:23,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:23,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:57:23,984 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err57ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-11-06 21:57:23,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:23,985 INFO L85 PathProgramCache]: Analyzing trace with hash -890227224, now seen corresponding path program 1 times [2023-11-06 21:57:23,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:23,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135713628] [2023-11-06 21:57:23,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:23,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:57:24,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:24,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135713628] [2023-11-06 21:57:24,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135713628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:24,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:24,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:57:24,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439377141] [2023-11-06 21:57:24,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:24,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:57:24,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:24,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:57:24,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:57:24,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1153 out of 2531 [2023-11-06 21:57:24,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 231 transitions, 509 flow. Second operand has 3 states, 3 states have (on average 1156.3333333333333) internal successors, (3469), 3 states have internal predecessors, (3469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:24,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:24,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1153 of 2531 [2023-11-06 21:57:24,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:26,064 INFO L124 PetriNetUnfolderBase]: 10327/19858 cut-off events. [2023-11-06 21:57:26,064 INFO L125 PetriNetUnfolderBase]: For 299/341 co-relation queries the response was YES. [2023-11-06 21:57:26,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36030 conditions, 19858 events. 10327/19858 cut-off events. For 299/341 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 160106 event pairs, 3238 based on Foata normal form. 1/16511 useless extension candidates. Maximal degree in co-relation 36025. Up to 15371 conditions per place. [2023-11-06 21:57:26,168 INFO L140 encePairwiseOnDemand]: 2517/2531 looper letters, 163 selfloop transitions, 6 changer transitions 0/250 dead transitions. [2023-11-06 21:57:26,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 250 transitions, 893 flow [2023-11-06 21:57:26,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:57:26,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:57:26,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3630 transitions. [2023-11-06 21:57:26,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47807190833662583 [2023-11-06 21:57:26,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3630 transitions. [2023-11-06 21:57:26,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3630 transitions. [2023-11-06 21:57:26,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:26,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3630 transitions. [2023-11-06 21:57:26,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1210.0) internal successors, (3630), 3 states have internal predecessors, (3630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:26,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:26,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:26,212 INFO L175 Difference]: Start difference. First operand has 202 places, 231 transitions, 509 flow. Second operand 3 states and 3630 transitions. [2023-11-06 21:57:26,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 250 transitions, 893 flow [2023-11-06 21:57:26,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 250 transitions, 893 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:57:26,220 INFO L231 Difference]: Finished difference. Result has 197 places, 229 transitions, 535 flow [2023-11-06 21:57:26,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2531, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=197, PETRI_TRANSITIONS=229} [2023-11-06 21:57:26,222 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -106 predicate places. [2023-11-06 21:57:26,223 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 229 transitions, 535 flow [2023-11-06 21:57:26,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1156.3333333333333) internal successors, (3469), 3 states have internal predecessors, (3469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:26,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:26,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:26,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:57:26,224 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-11-06 21:57:26,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:26,225 INFO L85 PathProgramCache]: Analyzing trace with hash 872385489, now seen corresponding path program 1 times [2023-11-06 21:57:26,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:26,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454752142] [2023-11-06 21:57:26,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:26,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:57:26,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:26,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454752142] [2023-11-06 21:57:26,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454752142] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:57:26,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512037513] [2023-11-06 21:57:26,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:26,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:57:26,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:57:26,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:57:26,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:57:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:26,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:57:26,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:57:26,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:57:26,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:57:26,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:57:26,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512037513] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:57:26,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:57:26,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-11-06 21:57:26,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533299029] [2023-11-06 21:57:26,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:57:26,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 21:57:26,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:26,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 21:57:26,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:57:26,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1162 out of 2531 [2023-11-06 21:57:26,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 229 transitions, 535 flow. Second operand has 8 states, 8 states have (on average 1164.125) internal successors, (9313), 8 states have internal predecessors, (9313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:26,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:26,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1162 of 2531 [2023-11-06 21:57:26,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:28,822 INFO L124 PetriNetUnfolderBase]: 10040/19639 cut-off events. [2023-11-06 21:57:28,822 INFO L125 PetriNetUnfolderBase]: For 602/668 co-relation queries the response was YES. [2023-11-06 21:57:28,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35904 conditions, 19639 events. 10040/19639 cut-off events. For 602/668 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 161347 event pairs, 6819 based on Foata normal form. 0/16243 useless extension candidates. Maximal degree in co-relation 35898. Up to 15043 conditions per place. [2023-11-06 21:57:28,920 INFO L140 encePairwiseOnDemand]: 2526/2531 looper letters, 140 selfloop transitions, 10 changer transitions 0/235 dead transitions. [2023-11-06 21:57:28,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 235 transitions, 859 flow [2023-11-06 21:57:28,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:57:28,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:57:28,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7120 transitions. [2023-11-06 21:57:28,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4688528908204926 [2023-11-06 21:57:28,946 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 7120 transitions. [2023-11-06 21:57:28,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7120 transitions. [2023-11-06 21:57:28,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:28,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 7120 transitions. [2023-11-06 21:57:28,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1186.6666666666667) internal successors, (7120), 6 states have internal predecessors, (7120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:29,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2531.0) internal successors, (17717), 7 states have internal predecessors, (17717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:29,005 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2531.0) internal successors, (17717), 7 states have internal predecessors, (17717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:29,006 INFO L175 Difference]: Start difference. First operand has 197 places, 229 transitions, 535 flow. Second operand 6 states and 7120 transitions. [2023-11-06 21:57:29,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 235 transitions, 859 flow [2023-11-06 21:57:29,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 235 transitions, 859 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:57:29,015 INFO L231 Difference]: Finished difference. Result has 205 places, 235 transitions, 601 flow [2023-11-06 21:57:29,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2531, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=601, PETRI_PLACES=205, PETRI_TRANSITIONS=235} [2023-11-06 21:57:29,017 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -98 predicate places. [2023-11-06 21:57:29,017 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 235 transitions, 601 flow [2023-11-06 21:57:29,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1164.125) internal successors, (9313), 8 states have internal predecessors, (9313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:29,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:29,020 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:29,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:57:29,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:57:29,234 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-11-06 21:57:29,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:29,234 INFO L85 PathProgramCache]: Analyzing trace with hash 874606573, now seen corresponding path program 2 times [2023-11-06 21:57:29,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:29,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541375329] [2023-11-06 21:57:29,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:29,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 21:57:29,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:29,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541375329] [2023-11-06 21:57:29,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541375329] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:57:29,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082701082] [2023-11-06 21:57:29,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:57:29,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:57:29,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:57:29,504 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:57:29,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 21:57:29,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 21:57:29,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:57:29,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 21:57:29,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:57:29,735 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 21:57:29,756 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-06 21:57:29,786 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 21:57:29,786 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-06 21:57:29,823 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 21:57:29,823 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-06 21:57:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 21:57:29,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:57:29,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082701082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:29,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:57:29,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2023-11-06 21:57:29,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684217200] [2023-11-06 21:57:29,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:29,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:57:29,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:29,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:57:29,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:57:30,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1166 out of 2531 [2023-11-06 21:57:30,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 235 transitions, 601 flow. Second operand has 7 states, 7 states have (on average 1167.857142857143) internal successors, (8175), 7 states have internal predecessors, (8175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:30,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:30,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1166 of 2531 [2023-11-06 21:57:30,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:37,091 INFO L124 PetriNetUnfolderBase]: 35427/53599 cut-off events. [2023-11-06 21:57:37,092 INFO L125 PetriNetUnfolderBase]: For 1899/1899 co-relation queries the response was YES. [2023-11-06 21:57:37,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107370 conditions, 53599 events. 35427/53599 cut-off events. For 1899/1899 co-relation queries the response was YES. Maximal size of possible extension queue 1072. Compared 382428 event pairs, 2232 based on Foata normal form. 0/44690 useless extension candidates. Maximal degree in co-relation 107360. Up to 17882 conditions per place. [2023-11-06 21:57:37,390 INFO L140 encePairwiseOnDemand]: 2525/2531 looper letters, 673 selfloop transitions, 5 changer transitions 0/758 dead transitions. [2023-11-06 21:57:37,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 758 transitions, 3163 flow [2023-11-06 21:57:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 21:57:37,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 21:57:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8793 transitions. [2023-11-06 21:57:37,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49630298583281596 [2023-11-06 21:57:37,421 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 8793 transitions. [2023-11-06 21:57:37,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8793 transitions. [2023-11-06 21:57:37,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:37,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 8793 transitions. [2023-11-06 21:57:37,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 1256.142857142857) internal successors, (8793), 7 states have internal predecessors, (8793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:37,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 2531.0) internal successors, (20248), 8 states have internal predecessors, (20248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:37,482 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 2531.0) internal successors, (20248), 8 states have internal predecessors, (20248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:37,483 INFO L175 Difference]: Start difference. First operand has 205 places, 235 transitions, 601 flow. Second operand 7 states and 8793 transitions. [2023-11-06 21:57:37,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 758 transitions, 3163 flow [2023-11-06 21:57:37,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 758 transitions, 3147 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-06 21:57:37,503 INFO L231 Difference]: Finished difference. Result has 209 places, 234 transitions, 593 flow [2023-11-06 21:57:37,504 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2531, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=593, PETRI_PLACES=209, PETRI_TRANSITIONS=234} [2023-11-06 21:57:37,507 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -94 predicate places. [2023-11-06 21:57:37,507 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 234 transitions, 593 flow [2023-11-06 21:57:37,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1167.857142857143) internal successors, (8175), 7 states have internal predecessors, (8175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:37,509 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:37,510 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:37,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:57:37,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32801d4c-ff4f-48d9-834c-174412f90944/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:57:37,721 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-11-06 21:57:37,722 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:37,722 INFO L85 PathProgramCache]: Analyzing trace with hash 239249485, now seen corresponding path program 1 times [2023-11-06 21:57:37,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:37,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364082183] [2023-11-06 21:57:37,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:37,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:37,800 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 21:57:37,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:37,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364082183] [2023-11-06 21:57:37,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364082183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:37,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:37,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:57:37,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197481864] [2023-11-06 21:57:37,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:37,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:57:37,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:37,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:57:37,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:57:37,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1174 out of 2531 [2023-11-06 21:57:37,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 234 transitions, 593 flow. Second operand has 3 states, 3 states have (on average 1177.6666666666667) internal successors, (3533), 3 states have internal predecessors, (3533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:37,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:37,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1174 of 2531 [2023-11-06 21:57:37,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:41,282 INFO L124 PetriNetUnfolderBase]: 15879/32141 cut-off events. [2023-11-06 21:57:41,283 INFO L125 PetriNetUnfolderBase]: For 4599/4638 co-relation queries the response was YES. [2023-11-06 21:57:41,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61371 conditions, 32141 events. 15879/32141 cut-off events. For 4599/4638 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 280076 event pairs, 6673 based on Foata normal form. 0/26991 useless extension candidates. Maximal degree in co-relation 61360. Up to 14661 conditions per place. [2023-11-06 21:57:41,475 INFO L140 encePairwiseOnDemand]: 2528/2531 looper letters, 251 selfloop transitions, 2 changer transitions 0/337 dead transitions. [2023-11-06 21:57:41,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 337 transitions, 1317 flow [2023-11-06 21:57:41,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:57:41,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:57:41,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3760 transitions. [2023-11-06 21:57:41,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49519294086658766 [2023-11-06 21:57:41,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3760 transitions. [2023-11-06 21:57:41,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3760 transitions. [2023-11-06 21:57:41,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:41,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3760 transitions. [2023-11-06 21:57:41,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1253.3333333333333) internal successors, (3760), 3 states have internal predecessors, (3760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:41,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:41,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:41,714 INFO L175 Difference]: Start difference. First operand has 209 places, 234 transitions, 593 flow. Second operand 3 states and 3760 transitions. [2023-11-06 21:57:41,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 337 transitions, 1317 flow [2023-11-06 21:57:41,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 337 transitions, 1306 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 21:57:41,736 INFO L231 Difference]: Finished difference. Result has 207 places, 235 transitions, 596 flow [2023-11-06 21:57:41,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2531, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=207, PETRI_TRANSITIONS=235} [2023-11-06 21:57:41,737 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -96 predicate places. [2023-11-06 21:57:41,737 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 235 transitions, 596 flow [2023-11-06 21:57:41,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1177.6666666666667) internal successors, (3533), 3 states have internal predecessors, (3533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:41,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:41,739 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:41,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:57:41,739 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-11-06 21:57:41,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:41,740 INFO L85 PathProgramCache]: Analyzing trace with hash 239248952, now seen corresponding path program 1 times [2023-11-06 21:57:41,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:41,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270724751] [2023-11-06 21:57:41,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:41,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:41,806 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 21:57:41,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:41,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270724751] [2023-11-06 21:57:41,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270724751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:41,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:41,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:57:41,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135382111] [2023-11-06 21:57:41,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:41,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:57:41,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:41,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:57:41,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:57:41,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1153 out of 2531 [2023-11-06 21:57:41,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 235 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 1157.0) internal successors, (3471), 3 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:41,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:41,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1153 of 2531 [2023-11-06 21:57:41,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:45,491 INFO L124 PetriNetUnfolderBase]: 18331/35331 cut-off events. [2023-11-06 21:57:45,491 INFO L125 PetriNetUnfolderBase]: For 1723/1908 co-relation queries the response was YES. [2023-11-06 21:57:45,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65348 conditions, 35331 events. 18331/35331 cut-off events. For 1723/1908 co-relation queries the response was YES. Maximal size of possible extension queue 683. Compared 299588 event pairs, 3742 based on Foata normal form. 3/29462 useless extension candidates. Maximal degree in co-relation 65336. Up to 22123 conditions per place. [2023-11-06 21:57:45,696 INFO L140 encePairwiseOnDemand]: 2518/2531 looper letters, 230 selfloop transitions, 5 changer transitions 0/310 dead transitions. [2023-11-06 21:57:45,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 310 transitions, 1237 flow [2023-11-06 21:57:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:57:45,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:57:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3685 transitions. [2023-11-06 21:57:45,706 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.485315422099302 [2023-11-06 21:57:45,706 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3685 transitions. [2023-11-06 21:57:45,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3685 transitions. [2023-11-06 21:57:45,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:45,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3685 transitions. [2023-11-06 21:57:45,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1228.3333333333333) internal successors, (3685), 3 states have internal predecessors, (3685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:45,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:45,728 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:45,728 INFO L175 Difference]: Start difference. First operand has 207 places, 235 transitions, 596 flow. Second operand 3 states and 3685 transitions. [2023-11-06 21:57:45,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 310 transitions, 1237 flow [2023-11-06 21:57:45,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 310 transitions, 1234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:57:45,740 INFO L231 Difference]: Finished difference. Result has 201 places, 232 transitions, 613 flow [2023-11-06 21:57:45,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2531, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=613, PETRI_PLACES=201, PETRI_TRANSITIONS=232} [2023-11-06 21:57:45,742 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -102 predicate places. [2023-11-06 21:57:45,742 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 232 transitions, 613 flow [2023-11-06 21:57:45,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1157.0) internal successors, (3471), 3 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:45,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:45,744 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:45,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 21:57:45,744 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-11-06 21:57:45,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:45,744 INFO L85 PathProgramCache]: Analyzing trace with hash 757655852, now seen corresponding path program 1 times [2023-11-06 21:57:45,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:45,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402958624] [2023-11-06 21:57:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:45,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:45,794 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 21:57:45,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:45,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402958624] [2023-11-06 21:57:45,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402958624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:45,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:45,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:57:45,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846594433] [2023-11-06 21:57:45,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:45,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:57:45,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:45,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:57:45,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:57:45,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1171 out of 2531 [2023-11-06 21:57:45,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 232 transitions, 613 flow. Second operand has 3 states, 3 states have (on average 1175.3333333333333) internal successors, (3526), 3 states have internal predecessors, (3526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:45,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:45,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1171 of 2531 [2023-11-06 21:57:45,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:50,007 INFO L124 PetriNetUnfolderBase]: 18610/35943 cut-off events. [2023-11-06 21:57:50,007 INFO L125 PetriNetUnfolderBase]: For 1721/1902 co-relation queries the response was YES. [2023-11-06 21:57:50,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67637 conditions, 35943 events. 18610/35943 cut-off events. For 1721/1902 co-relation queries the response was YES. Maximal size of possible extension queue 724. Compared 309401 event pairs, 11586 based on Foata normal form. 2/30604 useless extension candidates. Maximal degree in co-relation 67625. Up to 24922 conditions per place. [2023-11-06 21:57:50,219 INFO L140 encePairwiseOnDemand]: 2527/2531 looper letters, 221 selfloop transitions, 3 changer transitions 0/301 dead transitions. [2023-11-06 21:57:50,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 301 transitions, 1227 flow [2023-11-06 21:57:50,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:57:50,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:57:50,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3713 transitions. [2023-11-06 21:57:50,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4890030291057553 [2023-11-06 21:57:50,227 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3713 transitions. [2023-11-06 21:57:50,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3713 transitions. [2023-11-06 21:57:50,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:50,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3713 transitions. [2023-11-06 21:57:50,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1237.6666666666667) internal successors, (3713), 3 states have internal predecessors, (3713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:50,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:50,245 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:50,246 INFO L175 Difference]: Start difference. First operand has 201 places, 232 transitions, 613 flow. Second operand 3 states and 3713 transitions. [2023-11-06 21:57:50,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 301 transitions, 1227 flow [2023-11-06 21:57:50,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 301 transitions, 1227 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:57:50,263 INFO L231 Difference]: Finished difference. Result has 205 places, 234 transitions, 635 flow [2023-11-06 21:57:50,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2531, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=635, PETRI_PLACES=205, PETRI_TRANSITIONS=234} [2023-11-06 21:57:50,264 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -98 predicate places. [2023-11-06 21:57:50,264 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 234 transitions, 635 flow [2023-11-06 21:57:50,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1175.3333333333333) internal successors, (3526), 3 states have internal predecessors, (3526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:50,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:50,266 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:50,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 21:57:50,266 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-11-06 21:57:50,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:50,267 INFO L85 PathProgramCache]: Analyzing trace with hash -665731132, now seen corresponding path program 1 times [2023-11-06 21:57:50,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:50,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265359883] [2023-11-06 21:57:50,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:50,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:50,337 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 21:57:50,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:50,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265359883] [2023-11-06 21:57:50,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265359883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:50,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:50,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:57:50,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668647785] [2023-11-06 21:57:50,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:50,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:57:50,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:50,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:57:50,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:57:50,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1176 out of 2531 [2023-11-06 21:57:50,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 234 transitions, 635 flow. Second operand has 3 states, 3 states have (on average 1180.3333333333333) internal successors, (3541), 3 states have internal predecessors, (3541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:50,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:50,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1176 of 2531 [2023-11-06 21:57:50,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:57:55,877 INFO L124 PetriNetUnfolderBase]: 24939/47822 cut-off events. [2023-11-06 21:57:55,877 INFO L125 PetriNetUnfolderBase]: For 4438/4569 co-relation queries the response was YES. [2023-11-06 21:57:56,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92978 conditions, 47822 events. 24939/47822 cut-off events. For 4438/4569 co-relation queries the response was YES. Maximal size of possible extension queue 1002. Compared 432997 event pairs, 12970 based on Foata normal form. 49/41208 useless extension candidates. Maximal degree in co-relation 92964. Up to 27453 conditions per place. [2023-11-06 21:57:56,179 INFO L140 encePairwiseOnDemand]: 2524/2531 looper letters, 287 selfloop transitions, 3 changer transitions 0/366 dead transitions. [2023-11-06 21:57:56,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 366 transitions, 1546 flow [2023-11-06 21:57:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:57:56,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:57:56,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3790 transitions. [2023-11-06 21:57:56,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4991439483735019 [2023-11-06 21:57:56,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3790 transitions. [2023-11-06 21:57:56,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3790 transitions. [2023-11-06 21:57:56,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:57:56,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3790 transitions. [2023-11-06 21:57:56,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1263.3333333333333) internal successors, (3790), 3 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) [2023-11-06 21:57:56,205 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:56,208 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2531.0) internal successors, (10124), 4 states have internal predecessors, (10124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:56,208 INFO L175 Difference]: Start difference. First operand has 205 places, 234 transitions, 635 flow. Second operand 3 states and 3790 transitions. [2023-11-06 21:57:56,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 366 transitions, 1546 flow [2023-11-06 21:57:56,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 366 transitions, 1534 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:57:56,307 INFO L231 Difference]: Finished difference. Result has 207 places, 236 transitions, 656 flow [2023-11-06 21:57:56,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2531, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=207, PETRI_TRANSITIONS=236} [2023-11-06 21:57:56,308 INFO L281 CegarLoopForPetriNet]: 303 programPoint places, -96 predicate places. [2023-11-06 21:57:56,308 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 236 transitions, 656 flow [2023-11-06 21:57:56,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1180.3333333333333) internal successors, (3541), 3 states have internal predecessors, (3541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:56,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:57:56,309 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:57:56,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 21:57:56,310 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 284 more)] === [2023-11-06 21:57:56,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:57:56,310 INFO L85 PathProgramCache]: Analyzing trace with hash -999174206, now seen corresponding path program 1 times [2023-11-06 21:57:56,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:57:56,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376482101] [2023-11-06 21:57:56,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:57:56,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:57:56,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:57:56,377 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-06 21:57:56,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:57:56,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376482101] [2023-11-06 21:57:56,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376482101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:57:56,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:57:56,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:57:56,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248016956] [2023-11-06 21:57:56,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:57:56,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:57:56,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:57:56,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:57:56,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:57:56,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1174 out of 2531 [2023-11-06 21:57:56,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 236 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 1178.6666666666667) internal successors, (3536), 3 states have internal predecessors, (3536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:57:56,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:57:56,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1174 of 2531 [2023-11-06 21:57:56,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand