./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 779f57e464f50d458e1b66270e0c9f2866c6247d4d7f63a3096c6ac13e286657 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:07:34,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:07:34,800 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:07:34,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:07:34,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:07:34,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:07:34,842 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:07:34,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:07:34,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:07:34,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:07:34,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:07:34,846 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:07:34,847 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:07:34,849 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:07:34,849 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:07:34,850 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:07:34,850 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:07:34,850 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:07:34,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:07:34,851 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:07:34,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:07:34,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:07:34,856 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:07:34,856 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:07:34,857 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:07:34,857 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:07:34,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:07:34,858 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:07:34,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:07:34,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:07:34,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:07:34,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:34,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:07:34,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:07:34,862 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:07:34,862 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:07:34,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:07:34,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:07:34,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:07:34,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:07:34,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:07:34,864 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_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 779f57e464f50d458e1b66270e0c9f2866c6247d4d7f63a3096c6ac13e286657 [2024-10-31 22:07:35,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:07:35,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:07:35,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:07:35,297 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:07:35,297 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:07:35,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c Unable to find full path for "g++" [2024-10-31 22:07:37,367 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:07:37,607 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:07:37,608 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2024-10-31 22:07:37,620 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/data/469dec90c/50db54852a10451b923074e1c85c0132/FLAG773097c3b [2024-10-31 22:07:37,643 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/data/469dec90c/50db54852a10451b923074e1c85c0132 [2024-10-31 22:07:37,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:07:37,648 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:07:37,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:37,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:07:37,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:07:37,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:37" (1/1) ... [2024-10-31 22:07:37,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cfef072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:37, skipping insertion in model container [2024-10-31 22:07:37,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:07:37" (1/1) ... [2024-10-31 22:07:37,697 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:07:38,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:38,021 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:07:38,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:07:38,085 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:07:38,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38 WrapperNode [2024-10-31 22:07:38,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:07:38,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:38,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:07:38,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:07:38,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (1/1) ... [2024-10-31 22:07:38,111 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (1/1) ... [2024-10-31 22:07:38,177 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 488 [2024-10-31 22:07:38,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:07:38,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:07:38,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:07:38,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:07:38,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (1/1) ... [2024-10-31 22:07:38,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (1/1) ... [2024-10-31 22:07:38,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (1/1) ... [2024-10-31 22:07:38,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (1/1) ... [2024-10-31 22:07:38,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (1/1) ... [2024-10-31 22:07:38,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (1/1) ... [2024-10-31 22:07:38,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (1/1) ... [2024-10-31 22:07:38,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (1/1) ... [2024-10-31 22:07:38,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:07:38,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:07:38,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:07:38,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:07:38,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (1/1) ... [2024-10-31 22:07:38,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:38,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:38,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:38,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7f7f5b2-657c-423d-a362-e78fd8260ba7/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:07:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:07:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:07:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:07:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:07:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:07:38,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-31 22:07:38,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-31 22:07:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:07:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:07:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:07:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:07:38,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:07:38,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:07:38,344 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:07:38,523 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:07:38,525 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:07:39,587 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:07:39,587 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:07:39,666 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:07:39,666 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-10-31 22:07:39,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:39 BoogieIcfgContainer [2024-10-31 22:07:39,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:07:39,669 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:07:39,669 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:07:39,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:07:39,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:07:37" (1/3) ... [2024-10-31 22:07:39,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be1b1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:39, skipping insertion in model container [2024-10-31 22:07:39,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:07:38" (2/3) ... [2024-10-31 22:07:39,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be1b1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:39, skipping insertion in model container [2024-10-31 22:07:39,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:39" (3/3) ... [2024-10-31 22:07:39,679 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-subst.wvr.c [2024-10-31 22:07:39,699 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:07:39,700 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 59 error locations. [2024-10-31 22:07:39,701 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:07:39,926 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-31 22:07:39,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 608 places, 631 transitions, 1283 flow [2024-10-31 22:07:40,345 INFO L124 PetriNetUnfolderBase]: 33/628 cut-off events. [2024-10-31 22:07:40,346 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:07:40,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 628 events. 33/628 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1508 event pairs, 0 based on Foata normal form. 0/536 useless extension candidates. Maximal degree in co-relation 467. Up to 3 conditions per place. [2024-10-31 22:07:40,385 INFO L82 GeneralOperation]: Start removeDead. Operand has 608 places, 631 transitions, 1283 flow [2024-10-31 22:07:40,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 587 places, 608 transitions, 1234 flow [2024-10-31 22:07:40,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:07:40,453 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c251d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:07:40,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2024-10-31 22:07:40,462 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:07:40,463 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-31 22:07:40,463 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:07:40,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:40,464 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:40,465 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:07:40,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:40,470 INFO L85 PathProgramCache]: Analyzing trace with hash -447807204, now seen corresponding path program 1 times [2024-10-31 22:07:40,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:40,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442669424] [2024-10-31 22:07:40,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:40,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:40,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:40,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:40,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442669424] [2024-10-31 22:07:40,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442669424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:40,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:40,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:40,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943129282] [2024-10-31 22:07:40,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:40,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:40,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:40,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:40,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:40,838 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 631 [2024-10-31 22:07:40,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 608 transitions, 1234 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:40,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:40,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 631 [2024-10-31 22:07:40,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:41,494 INFO L124 PetriNetUnfolderBase]: 56/1488 cut-off events. [2024-10-31 22:07:41,494 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-31 22:07:41,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1576 conditions, 1488 events. 56/1488 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8292 event pairs, 20 based on Foata normal form. 42/1290 useless extension candidates. Maximal degree in co-relation 1200. Up to 51 conditions per place. [2024-10-31 22:07:41,530 INFO L140 encePairwiseOnDemand]: 609/631 looper letters, 14 selfloop transitions, 2 changer transitions 7/588 dead transitions. [2024-10-31 22:07:41,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 588 transitions, 1226 flow [2024-10-31 22:07:41,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1812 transitions. [2024-10-31 22:07:41,558 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9572107765451664 [2024-10-31 22:07:41,560 INFO L175 Difference]: Start difference. First operand has 587 places, 608 transitions, 1234 flow. Second operand 3 states and 1812 transitions. [2024-10-31 22:07:41,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 588 transitions, 1226 flow [2024-10-31 22:07:41,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 588 transitions, 1214 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:07:41,578 INFO L231 Difference]: Finished difference. Result has 582 places, 581 transitions, 1172 flow [2024-10-31 22:07:41,584 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1172, PETRI_PLACES=582, PETRI_TRANSITIONS=581} [2024-10-31 22:07:41,588 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -5 predicate places. [2024-10-31 22:07:41,588 INFO L471 AbstractCegarLoop]: Abstraction has has 582 places, 581 transitions, 1172 flow [2024-10-31 22:07:41,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:41,592 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:41,592 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:41,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:07:41,593 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:07:41,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:41,593 INFO L85 PathProgramCache]: Analyzing trace with hash 929963280, now seen corresponding path program 1 times [2024-10-31 22:07:41,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:41,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484353373] [2024-10-31 22:07:41,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:41,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:41,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:41,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:41,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484353373] [2024-10-31 22:07:41,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484353373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:41,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:41,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:41,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332881846] [2024-10-31 22:07:41,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:41,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:41,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:41,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:41,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:41,739 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 631 [2024-10-31 22:07:41,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 582 places, 581 transitions, 1172 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:41,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:41,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 631 [2024-10-31 22:07:41,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:42,098 INFO L124 PetriNetUnfolderBase]: 36/1024 cut-off events. [2024-10-31 22:07:42,099 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:07:42,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 1024 events. 36/1024 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4574 event pairs, 12 based on Foata normal form. 0/875 useless extension candidates. Maximal degree in co-relation 1042. Up to 39 conditions per place. [2024-10-31 22:07:42,126 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 14 selfloop transitions, 2 changer transitions 0/580 dead transitions. [2024-10-31 22:07:42,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 580 transitions, 1202 flow [2024-10-31 22:07:42,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:42,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:42,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1793 transitions. [2024-10-31 22:07:42,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9471737982039091 [2024-10-31 22:07:42,159 INFO L175 Difference]: Start difference. First operand has 582 places, 581 transitions, 1172 flow. Second operand 3 states and 1793 transitions. [2024-10-31 22:07:42,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 580 transitions, 1202 flow [2024-10-31 22:07:42,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 580 transitions, 1198 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:42,170 INFO L231 Difference]: Finished difference. Result has 574 places, 580 transitions, 1170 flow [2024-10-31 22:07:42,171 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1166, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1170, PETRI_PLACES=574, PETRI_TRANSITIONS=580} [2024-10-31 22:07:42,172 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -13 predicate places. [2024-10-31 22:07:42,172 INFO L471 AbstractCegarLoop]: Abstraction has has 574 places, 580 transitions, 1170 flow [2024-10-31 22:07:42,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:42,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:42,174 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:42,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:07:42,174 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:07:42,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:42,175 INFO L85 PathProgramCache]: Analyzing trace with hash 32050057, now seen corresponding path program 1 times [2024-10-31 22:07:42,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:42,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52603158] [2024-10-31 22:07:42,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:42,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:42,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:42,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52603158] [2024-10-31 22:07:42,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52603158] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:42,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:42,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:42,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299564247] [2024-10-31 22:07:42,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:42,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:42,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:42,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:42,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:42,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 631 [2024-10-31 22:07:42,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 580 transitions, 1170 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:42,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:42,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 631 [2024-10-31 22:07:42,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:42,788 INFO L124 PetriNetUnfolderBase]: 56/1455 cut-off events. [2024-10-31 22:07:42,788 INFO L125 PetriNetUnfolderBase]: For 13/16 co-relation queries the response was YES. [2024-10-31 22:07:42,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1517 conditions, 1455 events. 56/1455 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 7781 event pairs, 20 based on Foata normal form. 0/1233 useless extension candidates. Maximal degree in co-relation 1475. Up to 51 conditions per place. [2024-10-31 22:07:42,825 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 14 selfloop transitions, 2 changer transitions 0/579 dead transitions. [2024-10-31 22:07:42,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 579 transitions, 1200 flow [2024-10-31 22:07:42,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:42,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:42,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1793 transitions. [2024-10-31 22:07:42,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9471737982039091 [2024-10-31 22:07:42,830 INFO L175 Difference]: Start difference. First operand has 574 places, 580 transitions, 1170 flow. Second operand 3 states and 1793 transitions. [2024-10-31 22:07:42,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 579 transitions, 1200 flow [2024-10-31 22:07:42,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 579 transitions, 1196 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:42,843 INFO L231 Difference]: Finished difference. Result has 573 places, 579 transitions, 1168 flow [2024-10-31 22:07:42,844 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1164, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1168, PETRI_PLACES=573, PETRI_TRANSITIONS=579} [2024-10-31 22:07:42,845 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -14 predicate places. [2024-10-31 22:07:42,845 INFO L471 AbstractCegarLoop]: Abstraction has has 573 places, 579 transitions, 1168 flow [2024-10-31 22:07:42,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:42,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:42,847 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:42,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:07:42,847 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:07:42,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:42,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1975053910, now seen corresponding path program 1 times [2024-10-31 22:07:42,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:42,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211669781] [2024-10-31 22:07:42,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:42,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:42,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:42,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:42,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:42,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211669781] [2024-10-31 22:07:42,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211669781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:42,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:42,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:42,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596718159] [2024-10-31 22:07:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:42,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:42,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:42,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:42,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:42,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 631 [2024-10-31 22:07:42,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 579 transitions, 1168 flow. Second operand has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:42,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:42,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 631 [2024-10-31 22:07:42,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:43,696 INFO L124 PetriNetUnfolderBase]: 132/2496 cut-off events. [2024-10-31 22:07:43,696 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:07:43,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 2496 events. 132/2496 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 18546 event pairs, 64 based on Foata normal form. 0/2124 useless extension candidates. Maximal degree in co-relation 2621. Up to 138 conditions per place. [2024-10-31 22:07:43,744 INFO L140 encePairwiseOnDemand]: 625/631 looper letters, 16 selfloop transitions, 1 changer transitions 0/574 dead transitions. [2024-10-31 22:07:43,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 574 transitions, 1192 flow [2024-10-31 22:07:43,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:43,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1786 transitions. [2024-10-31 22:07:43,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9434759640781828 [2024-10-31 22:07:43,748 INFO L175 Difference]: Start difference. First operand has 573 places, 579 transitions, 1168 flow. Second operand 3 states and 1786 transitions. [2024-10-31 22:07:43,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 574 transitions, 1192 flow [2024-10-31 22:07:43,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 574 transitions, 1188 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:07:43,758 INFO L231 Difference]: Finished difference. Result has 568 places, 574 transitions, 1156 flow [2024-10-31 22:07:43,759 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1156, PETRI_PLACES=568, PETRI_TRANSITIONS=574} [2024-10-31 22:07:43,760 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -19 predicate places. [2024-10-31 22:07:43,760 INFO L471 AbstractCegarLoop]: Abstraction has has 568 places, 574 transitions, 1156 flow [2024-10-31 22:07:43,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:43,762 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:43,762 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:43,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:07:43,762 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:07:43,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:43,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1023932628, now seen corresponding path program 1 times [2024-10-31 22:07:43,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:43,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764059626] [2024-10-31 22:07:43,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:43,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:44,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:44,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:44,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764059626] [2024-10-31 22:07:44,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764059626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:44,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:44,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:07:44,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086559802] [2024-10-31 22:07:44,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:44,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:07:44,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:44,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:07:44,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:07:45,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 514 out of 631 [2024-10-31 22:07:45,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 574 transitions, 1156 flow. Second operand has 6 states, 6 states have (on average 515.5) internal successors, (3093), 6 states have internal predecessors, (3093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:45,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:45,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 514 of 631 [2024-10-31 22:07:45,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:57,690 INFO L124 PetriNetUnfolderBase]: 12107/56176 cut-off events. [2024-10-31 22:07:57,691 INFO L125 PetriNetUnfolderBase]: For 899/901 co-relation queries the response was YES. [2024-10-31 22:07:58,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73657 conditions, 56176 events. 12107/56176 cut-off events. For 899/901 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 784819 event pairs, 10080 based on Foata normal form. 0/48921 useless extension candidates. Maximal degree in co-relation 73608. Up to 17156 conditions per place. [2024-10-31 22:07:58,305 INFO L140 encePairwiseOnDemand]: 613/631 looper letters, 78 selfloop transitions, 15 changer transitions 0/571 dead transitions. [2024-10-31 22:07:58,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 571 transitions, 1336 flow [2024-10-31 22:07:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:07:58,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:07:58,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3180 transitions. [2024-10-31 22:07:58,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8399366085578447 [2024-10-31 22:07:58,312 INFO L175 Difference]: Start difference. First operand has 568 places, 574 transitions, 1156 flow. Second operand 6 states and 3180 transitions. [2024-10-31 22:07:58,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 571 transitions, 1336 flow [2024-10-31 22:07:58,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 571 transitions, 1335 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:07:58,324 INFO L231 Difference]: Finished difference. Result has 569 places, 571 transitions, 1179 flow [2024-10-31 22:07:58,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1149, PETRI_DIFFERENCE_MINUEND_PLACES=564, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1179, PETRI_PLACES=569, PETRI_TRANSITIONS=571} [2024-10-31 22:07:58,328 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -18 predicate places. [2024-10-31 22:07:58,328 INFO L471 AbstractCegarLoop]: Abstraction has has 569 places, 571 transitions, 1179 flow [2024-10-31 22:07:58,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 515.5) internal successors, (3093), 6 states have internal predecessors, (3093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:58,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:58,331 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:58,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:07:58,332 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:07:58,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:58,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1772920805, now seen corresponding path program 1 times [2024-10-31 22:07:58,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:58,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727325121] [2024-10-31 22:07:58,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:58,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:58,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:58,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:58,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727325121] [2024-10-31 22:07:58,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727325121] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:58,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:58,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:58,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207794285] [2024-10-31 22:07:58,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:58,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:58,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:58,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:58,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:58,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 593 out of 631 [2024-10-31 22:07:58,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 571 transitions, 1179 flow. Second operand has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:58,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:58,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 593 of 631 [2024-10-31 22:07:58,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:59,094 INFO L124 PetriNetUnfolderBase]: 62/1744 cut-off events. [2024-10-31 22:07:59,095 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-10-31 22:07:59,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1827 conditions, 1744 events. 62/1744 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9892 event pairs, 20 based on Foata normal form. 0/1484 useless extension candidates. Maximal degree in co-relation 1779. Up to 50 conditions per place. [2024-10-31 22:07:59,122 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 13 selfloop transitions, 2 changer transitions 0/570 dead transitions. [2024-10-31 22:07:59,122 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 570 transitions, 1207 flow [2024-10-31 22:07:59,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:59,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:59,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1795 transitions. [2024-10-31 22:07:59,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948230322239831 [2024-10-31 22:07:59,129 INFO L175 Difference]: Start difference. First operand has 569 places, 571 transitions, 1179 flow. Second operand 3 states and 1795 transitions. [2024-10-31 22:07:59,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 570 transitions, 1207 flow [2024-10-31 22:07:59,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 570 transitions, 1177 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:07:59,142 INFO L231 Difference]: Finished difference. Result has 565 places, 570 transitions, 1151 flow [2024-10-31 22:07:59,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1147, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=570, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=568, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1151, PETRI_PLACES=565, PETRI_TRANSITIONS=570} [2024-10-31 22:07:59,144 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -22 predicate places. [2024-10-31 22:07:59,144 INFO L471 AbstractCegarLoop]: Abstraction has has 565 places, 570 transitions, 1151 flow [2024-10-31 22:07:59,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:59,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:59,146 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:59,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:07:59,146 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:07:59,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:59,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2097705736, now seen corresponding path program 1 times [2024-10-31 22:07:59,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:59,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046942562] [2024-10-31 22:07:59,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:59,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:59,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:59,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:59,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046942562] [2024-10-31 22:07:59,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046942562] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:59,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:59,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:59,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135214386] [2024-10-31 22:07:59,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:59,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:59,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:59,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:59,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:59,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 631 [2024-10-31 22:07:59,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 570 transitions, 1151 flow. Second operand has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:59,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:59,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 631 [2024-10-31 22:07:59,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:59,956 INFO L124 PetriNetUnfolderBase]: 78/1635 cut-off events. [2024-10-31 22:07:59,957 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-31 22:07:59,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1740 conditions, 1635 events. 78/1635 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9883 event pairs, 32 based on Foata normal form. 0/1411 useless extension candidates. Maximal degree in co-relation 1690. Up to 87 conditions per place. [2024-10-31 22:08:00,001 INFO L140 encePairwiseOnDemand]: 625/631 looper letters, 16 selfloop transitions, 1 changer transitions 0/565 dead transitions. [2024-10-31 22:08:00,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 565 transitions, 1175 flow [2024-10-31 22:08:00,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:00,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:00,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1786 transitions. [2024-10-31 22:08:00,007 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9434759640781828 [2024-10-31 22:08:00,007 INFO L175 Difference]: Start difference. First operand has 565 places, 570 transitions, 1151 flow. Second operand 3 states and 1786 transitions. [2024-10-31 22:08:00,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 565 transitions, 1175 flow [2024-10-31 22:08:00,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 565 transitions, 1171 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:00,020 INFO L231 Difference]: Finished difference. Result has 560 places, 565 transitions, 1139 flow [2024-10-31 22:08:00,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1137, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=565, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1139, PETRI_PLACES=560, PETRI_TRANSITIONS=565} [2024-10-31 22:08:00,022 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -27 predicate places. [2024-10-31 22:08:00,023 INFO L471 AbstractCegarLoop]: Abstraction has has 560 places, 565 transitions, 1139 flow [2024-10-31 22:08:00,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:00,025 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:00,025 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:00,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:08:00,025 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:08:00,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:00,026 INFO L85 PathProgramCache]: Analyzing trace with hash -531904196, now seen corresponding path program 1 times [2024-10-31 22:08:00,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:00,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41634786] [2024-10-31 22:08:00,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:00,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:00,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:00,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:00,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41634786] [2024-10-31 22:08:00,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41634786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:00,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:00,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:08:00,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641610044] [2024-10-31 22:08:00,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:00,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:00,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:00,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:00,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:00,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 593 out of 631 [2024-10-31 22:08:00,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 565 transitions, 1139 flow. Second operand has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:00,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:00,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 593 of 631 [2024-10-31 22:08:00,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:00,438 INFO L124 PetriNetUnfolderBase]: 36/1038 cut-off events. [2024-10-31 22:08:00,439 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-10-31 22:08:00,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 1038 events. 36/1038 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4402 event pairs, 12 based on Foata normal form. 0/908 useless extension candidates. Maximal degree in co-relation 1039. Up to 38 conditions per place. [2024-10-31 22:08:00,456 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 13 selfloop transitions, 2 changer transitions 0/564 dead transitions. [2024-10-31 22:08:00,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 564 transitions, 1167 flow [2024-10-31 22:08:00,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:00,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:00,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1795 transitions. [2024-10-31 22:08:00,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948230322239831 [2024-10-31 22:08:00,462 INFO L175 Difference]: Start difference. First operand has 560 places, 565 transitions, 1139 flow. Second operand 3 states and 1795 transitions. [2024-10-31 22:08:00,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 564 transitions, 1167 flow [2024-10-31 22:08:00,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 564 transitions, 1166 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:08:00,475 INFO L231 Difference]: Finished difference. Result has 560 places, 564 transitions, 1140 flow [2024-10-31 22:08:00,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1140, PETRI_PLACES=560, PETRI_TRANSITIONS=564} [2024-10-31 22:08:00,476 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -27 predicate places. [2024-10-31 22:08:00,477 INFO L471 AbstractCegarLoop]: Abstraction has has 560 places, 564 transitions, 1140 flow [2024-10-31 22:08:00,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:00,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:00,479 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:00,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:08:00,479 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:08:00,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:00,480 INFO L85 PathProgramCache]: Analyzing trace with hash -652471666, now seen corresponding path program 1 times [2024-10-31 22:08:00,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:00,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204203497] [2024-10-31 22:08:00,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:00,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:00,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:00,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204203497] [2024-10-31 22:08:00,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204203497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:00,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:00,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:08:00,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995854481] [2024-10-31 22:08:00,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:00,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:00,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:00,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:00,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:00,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 588 out of 631 [2024-10-31 22:08:00,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 564 transitions, 1140 flow. Second operand has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:00,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:00,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 588 of 631 [2024-10-31 22:08:00,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:01,289 INFO L124 PetriNetUnfolderBase]: 136/2442 cut-off events. [2024-10-31 22:08:01,289 INFO L125 PetriNetUnfolderBase]: For 35/39 co-relation queries the response was YES. [2024-10-31 22:08:01,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2598 conditions, 2442 events. 136/2442 cut-off events. For 35/39 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 17707 event pairs, 64 based on Foata normal form. 0/2112 useless extension candidates. Maximal degree in co-relation 2548. Up to 141 conditions per place. [2024-10-31 22:08:01,348 INFO L140 encePairwiseOnDemand]: 625/631 looper letters, 16 selfloop transitions, 1 changer transitions 0/559 dead transitions. [2024-10-31 22:08:01,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 559 transitions, 1164 flow [2024-10-31 22:08:01,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:01,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:01,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1786 transitions. [2024-10-31 22:08:01,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9434759640781828 [2024-10-31 22:08:01,352 INFO L175 Difference]: Start difference. First operand has 560 places, 564 transitions, 1140 flow. Second operand 3 states and 1786 transitions. [2024-10-31 22:08:01,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 559 transitions, 1164 flow [2024-10-31 22:08:01,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 559 transitions, 1160 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:01,361 INFO L231 Difference]: Finished difference. Result has 555 places, 559 transitions, 1128 flow [2024-10-31 22:08:01,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1126, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=555, PETRI_TRANSITIONS=559} [2024-10-31 22:08:01,362 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -32 predicate places. [2024-10-31 22:08:01,363 INFO L471 AbstractCegarLoop]: Abstraction has has 555 places, 559 transitions, 1128 flow [2024-10-31 22:08:01,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.0) internal successors, (1767), 3 states have internal predecessors, (1767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:01,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:01,364 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:01,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:08:01,365 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:08:01,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:01,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1387397697, now seen corresponding path program 1 times [2024-10-31 22:08:01,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:01,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54784999] [2024-10-31 22:08:01,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:01,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:01,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:01,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:01,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54784999] [2024-10-31 22:08:01,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54784999] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:01,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:01,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:08:01,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569003980] [2024-10-31 22:08:01,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:01,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:01,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:01,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:01,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:01,483 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 593 out of 631 [2024-10-31 22:08:01,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 559 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:01,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:01,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 593 of 631 [2024-10-31 22:08:01,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:01,758 INFO L124 PetriNetUnfolderBase]: 38/810 cut-off events. [2024-10-31 22:08:01,758 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2024-10-31 22:08:01,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 810 events. 38/810 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3028 event pairs, 20 based on Foata normal form. 0/723 useless extension candidates. Maximal degree in co-relation 822. Up to 50 conditions per place. [2024-10-31 22:08:01,776 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 13 selfloop transitions, 2 changer transitions 0/558 dead transitions. [2024-10-31 22:08:01,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 558 transitions, 1156 flow [2024-10-31 22:08:01,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:01,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1795 transitions. [2024-10-31 22:08:01,780 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.948230322239831 [2024-10-31 22:08:01,781 INFO L175 Difference]: Start difference. First operand has 555 places, 559 transitions, 1128 flow. Second operand 3 states and 1795 transitions. [2024-10-31 22:08:01,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 556 places, 558 transitions, 1156 flow [2024-10-31 22:08:01,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 555 places, 558 transitions, 1155 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:08:01,789 INFO L231 Difference]: Finished difference. Result has 555 places, 558 transitions, 1129 flow [2024-10-31 22:08:01,791 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1129, PETRI_PLACES=555, PETRI_TRANSITIONS=558} [2024-10-31 22:08:01,792 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -32 predicate places. [2024-10-31 22:08:01,793 INFO L471 AbstractCegarLoop]: Abstraction has has 555 places, 558 transitions, 1129 flow [2024-10-31 22:08:01,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 594.3333333333334) internal successors, (1783), 3 states have internal predecessors, (1783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:01,794 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:01,794 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:01,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:08:01,795 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:08:01,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:01,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1341973257, now seen corresponding path program 1 times [2024-10-31 22:08:01,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:01,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422777355] [2024-10-31 22:08:01,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:01,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:01,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:01,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422777355] [2024-10-31 22:08:01,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422777355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:01,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:01,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:08:01,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42140420] [2024-10-31 22:08:01,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:01,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:01,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:01,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:01,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:01,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 597 out of 631 [2024-10-31 22:08:01,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 558 transitions, 1129 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:01,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:01,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 597 of 631 [2024-10-31 22:08:01,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:02,245 INFO L124 PetriNetUnfolderBase]: 34/990 cut-off events. [2024-10-31 22:08:02,245 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:08:02,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 990 events. 34/990 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4345 event pairs, 6 based on Foata normal form. 0/878 useless extension candidates. Maximal degree in co-relation 994. Up to 23 conditions per place. [2024-10-31 22:08:02,265 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 12 selfloop transitions, 2 changer transitions 0/559 dead transitions. [2024-10-31 22:08:02,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 556 places, 559 transitions, 1161 flow [2024-10-31 22:08:02,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:02,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:02,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1806 transitions. [2024-10-31 22:08:02,270 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9540412044374009 [2024-10-31 22:08:02,270 INFO L175 Difference]: Start difference. First operand has 555 places, 558 transitions, 1129 flow. Second operand 3 states and 1806 transitions. [2024-10-31 22:08:02,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 556 places, 559 transitions, 1161 flow [2024-10-31 22:08:02,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 554 places, 559 transitions, 1157 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:02,281 INFO L231 Difference]: Finished difference. Result has 554 places, 557 transitions, 1127 flow [2024-10-31 22:08:02,282 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1127, PETRI_PLACES=554, PETRI_TRANSITIONS=557} [2024-10-31 22:08:02,283 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -33 predicate places. [2024-10-31 22:08:02,284 INFO L471 AbstractCegarLoop]: Abstraction has has 554 places, 557 transitions, 1127 flow [2024-10-31 22:08:02,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:02,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:02,286 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:02,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:08:02,286 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:08:02,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:02,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2126152066, now seen corresponding path program 1 times [2024-10-31 22:08:02,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:02,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868970533] [2024-10-31 22:08:02,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:02,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:02,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:02,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:02,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868970533] [2024-10-31 22:08:02,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868970533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:02,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:02,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:08:02,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835394640] [2024-10-31 22:08:02,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:02,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:02,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:02,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:02,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:02,385 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 631 [2024-10-31 22:08:02,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 557 transitions, 1127 flow. Second operand has 3 states, 3 states have (on average 597.6666666666666) internal successors, (1793), 3 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:02,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:02,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 631 [2024-10-31 22:08:02,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:02,654 INFO L124 PetriNetUnfolderBase]: 31/876 cut-off events. [2024-10-31 22:08:02,654 INFO L125 PetriNetUnfolderBase]: For 7/13 co-relation queries the response was YES. [2024-10-31 22:08:02,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 876 events. 31/876 cut-off events. For 7/13 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3404 event pairs, 6 based on Foata normal form. 1/783 useless extension candidates. Maximal degree in co-relation 876. Up to 24 conditions per place. [2024-10-31 22:08:02,678 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 13 selfloop transitions, 2 changer transitions 0/558 dead transitions. [2024-10-31 22:08:02,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 558 transitions, 1161 flow [2024-10-31 22:08:02,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:02,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1804 transitions. [2024-10-31 22:08:02,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529846804014791 [2024-10-31 22:08:02,683 INFO L175 Difference]: Start difference. First operand has 554 places, 557 transitions, 1127 flow. Second operand 3 states and 1804 transitions. [2024-10-31 22:08:02,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 558 transitions, 1161 flow [2024-10-31 22:08:02,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 558 transitions, 1157 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:02,693 INFO L231 Difference]: Finished difference. Result has 553 places, 556 transitions, 1125 flow [2024-10-31 22:08:02,694 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=554, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1125, PETRI_PLACES=553, PETRI_TRANSITIONS=556} [2024-10-31 22:08:02,695 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -34 predicate places. [2024-10-31 22:08:02,695 INFO L471 AbstractCegarLoop]: Abstraction has has 553 places, 556 transitions, 1125 flow [2024-10-31 22:08:02,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 597.6666666666666) internal successors, (1793), 3 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:02,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:02,697 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:02,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:08:02,698 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:08:02,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:02,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1305878310, now seen corresponding path program 1 times [2024-10-31 22:08:02,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:02,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650806093] [2024-10-31 22:08:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:02,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:02,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:02,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650806093] [2024-10-31 22:08:02,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650806093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:02,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:02,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:08:02,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247521486] [2024-10-31 22:08:02,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:02,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:02,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:02,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:02,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:02,781 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 631 [2024-10-31 22:08:02,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 556 transitions, 1125 flow. Second operand has 3 states, 3 states have (on average 597.6666666666666) internal successors, (1793), 3 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:02,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:02,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 631 [2024-10-31 22:08:02,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:03,046 INFO L124 PetriNetUnfolderBase]: 40/991 cut-off events. [2024-10-31 22:08:03,047 INFO L125 PetriNetUnfolderBase]: For 2/18 co-relation queries the response was YES. [2024-10-31 22:08:03,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 991 events. 40/991 cut-off events. For 2/18 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4307 event pairs, 12 based on Foata normal form. 1/879 useless extension candidates. Maximal degree in co-relation 1022. Up to 39 conditions per place. [2024-10-31 22:08:03,068 INFO L140 encePairwiseOnDemand]: 627/631 looper letters, 14 selfloop transitions, 3 changer transitions 0/559 dead transitions. [2024-10-31 22:08:03,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 559 transitions, 1167 flow [2024-10-31 22:08:03,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:03,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:03,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1806 transitions. [2024-10-31 22:08:03,073 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9540412044374009 [2024-10-31 22:08:03,073 INFO L175 Difference]: Start difference. First operand has 553 places, 556 transitions, 1125 flow. Second operand 3 states and 1806 transitions. [2024-10-31 22:08:03,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 555 places, 559 transitions, 1167 flow [2024-10-31 22:08:03,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 559 transitions, 1163 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:03,084 INFO L231 Difference]: Finished difference. Result has 555 places, 557 transitions, 1139 flow [2024-10-31 22:08:03,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1139, PETRI_PLACES=555, PETRI_TRANSITIONS=557} [2024-10-31 22:08:03,086 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -32 predicate places. [2024-10-31 22:08:03,087 INFO L471 AbstractCegarLoop]: Abstraction has has 555 places, 557 transitions, 1139 flow [2024-10-31 22:08:03,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 597.6666666666666) internal successors, (1793), 3 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:03,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:03,089 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:03,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:08:03,089 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:08:03,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:03,090 INFO L85 PathProgramCache]: Analyzing trace with hash 327144343, now seen corresponding path program 1 times [2024-10-31 22:08:03,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:03,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850997683] [2024-10-31 22:08:03,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:03,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:03,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:03,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:03,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850997683] [2024-10-31 22:08:03,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850997683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:03,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:03,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:08:03,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483258809] [2024-10-31 22:08:03,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:03,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:03,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:03,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:03,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:03,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 591 out of 631 [2024-10-31 22:08:03,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 557 transitions, 1139 flow. Second operand has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:03,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:03,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 591 of 631 [2024-10-31 22:08:03,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:03,877 INFO L124 PetriNetUnfolderBase]: 131/2146 cut-off events. [2024-10-31 22:08:03,877 INFO L125 PetriNetUnfolderBase]: For 26/28 co-relation queries the response was YES. [2024-10-31 22:08:03,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 2146 events. 131/2146 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 14800 event pairs, 24 based on Foata normal form. 0/1905 useless extension candidates. Maximal degree in co-relation 2343. Up to 154 conditions per place. [2024-10-31 22:08:03,935 INFO L140 encePairwiseOnDemand]: 625/631 looper letters, 20 selfloop transitions, 2 changer transitions 0/560 dead transitions. [2024-10-31 22:08:03,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 560 transitions, 1194 flow [2024-10-31 22:08:03,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:03,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:03,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1799 transitions. [2024-10-31 22:08:03,942 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9503433703116746 [2024-10-31 22:08:03,942 INFO L175 Difference]: Start difference. First operand has 555 places, 557 transitions, 1139 flow. Second operand 3 states and 1799 transitions. [2024-10-31 22:08:03,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 560 transitions, 1194 flow [2024-10-31 22:08:03,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 560 transitions, 1188 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:08:03,958 INFO L231 Difference]: Finished difference. Result has 552 places, 555 transitions, 1139 flow [2024-10-31 22:08:03,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=553, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=551, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1139, PETRI_PLACES=552, PETRI_TRANSITIONS=555} [2024-10-31 22:08:03,960 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -35 predicate places. [2024-10-31 22:08:03,961 INFO L471 AbstractCegarLoop]: Abstraction has has 552 places, 555 transitions, 1139 flow [2024-10-31 22:08:03,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 592.3333333333334) internal successors, (1777), 3 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:03,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:03,963 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:03,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:08:03,963 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:08:03,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:03,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1801575874, now seen corresponding path program 1 times [2024-10-31 22:08:03,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:03,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332918475] [2024-10-31 22:08:03,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:03,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:04,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:04,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:04,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332918475] [2024-10-31 22:08:04,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332918475] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:04,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:04,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:08:04,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24423294] [2024-10-31 22:08:04,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:04,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:08:04,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:04,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:08:04,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:08:04,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 596 out of 631 [2024-10-31 22:08:04,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 555 transitions, 1139 flow. Second operand has 3 states, 3 states have (on average 598.0) internal successors, (1794), 3 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:04,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:04,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 596 of 631 [2024-10-31 22:08:04,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:08:04,535 INFO L124 PetriNetUnfolderBase]: 63/1137 cut-off events. [2024-10-31 22:08:04,535 INFO L125 PetriNetUnfolderBase]: For 36/52 co-relation queries the response was YES. [2024-10-31 22:08:04,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 1137 events. 63/1137 cut-off events. For 36/52 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5464 event pairs, 12 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 1187. Up to 49 conditions per place. [2024-10-31 22:08:04,564 INFO L140 encePairwiseOnDemand]: 628/631 looper letters, 13 selfloop transitions, 2 changer transitions 0/556 dead transitions. [2024-10-31 22:08:04,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 556 transitions, 1173 flow [2024-10-31 22:08:04,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:08:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:08:04,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1804 transitions. [2024-10-31 22:08:04,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529846804014791 [2024-10-31 22:08:04,570 INFO L175 Difference]: Start difference. First operand has 552 places, 555 transitions, 1139 flow. Second operand 3 states and 1804 transitions. [2024-10-31 22:08:04,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 556 transitions, 1173 flow [2024-10-31 22:08:04,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 556 transitions, 1173 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:08:04,583 INFO L231 Difference]: Finished difference. Result has 553 places, 554 transitions, 1141 flow [2024-10-31 22:08:04,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=631, PETRI_DIFFERENCE_MINUEND_FLOW=1137, PETRI_DIFFERENCE_MINUEND_PLACES=551, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=552, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1141, PETRI_PLACES=553, PETRI_TRANSITIONS=554} [2024-10-31 22:08:04,585 INFO L277 CegarLoopForPetriNet]: 587 programPoint places, -34 predicate places. [2024-10-31 22:08:04,585 INFO L471 AbstractCegarLoop]: Abstraction has has 553 places, 554 transitions, 1141 flow [2024-10-31 22:08:04,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.0) internal successors, (1794), 3 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:04,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:08:04,587 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:08:04,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:08:04,588 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 100 more)] === [2024-10-31 22:08:04,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:08:04,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1148090203, now seen corresponding path program 1 times [2024-10-31 22:08:04,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:08:04,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590711226] [2024-10-31 22:08:04,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:08:04,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:08:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:08:04,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:08:04,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:08:04,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590711226] [2024-10-31 22:08:04,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590711226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:08:04,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:08:04,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:08:04,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610388790] [2024-10-31 22:08:04,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:08:04,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:08:04,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:08:04,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:08:04,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:08:05,764 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 565 out of 631 [2024-10-31 22:08:05,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 554 transitions, 1141 flow. Second operand has 8 states, 8 states have (on average 569.125) internal successors, (4553), 8 states have internal predecessors, (4553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:08:05,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:08:05,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 565 of 631 [2024-10-31 22:08:05,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand