/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/popl20-prod-cons-eq.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 21:02:41,947 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 21:02:42,038 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 21:02:42,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 21:02:42,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 21:02:42,075 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 21:02:42,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 21:02:42,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 21:02:42,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 21:02:42,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 21:02:42,081 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 21:02:42,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 21:02:42,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 21:02:42,083 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 21:02:42,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 21:02:42,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 21:02:42,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 21:02:42,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 21:02:42,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 21:02:42,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 21:02:42,085 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 21:02:42,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 21:02:42,089 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 21:02:42,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 21:02:42,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 21:02:42,090 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 21:02:42,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 21:02:42,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:02:42,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 21:02:42,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 21:02:42,092 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 21:02:42,092 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 21:02:42,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 21:02:42,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 21:02:42,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 21:02:42,093 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 21:02:42,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 21:02:42,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 21:02:42,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 21:02:42,411 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 21:02:42,413 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 21:02:42,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-prod-cons-eq.wvr.c [2023-08-25 21:02:43,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 21:02:43,821 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 21:02:43,821 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-prod-cons-eq.wvr.c [2023-08-25 21:02:43,834 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4744d7c8c/3d4871b6215944308eaef538f67d84f7/FLAGec87ce6b9 [2023-08-25 21:02:43,851 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4744d7c8c/3d4871b6215944308eaef538f67d84f7 [2023-08-25 21:02:43,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 21:02:43,854 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 21:02:43,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 21:02:43,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 21:02:43,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 21:02:43,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:02:43" (1/1) ... [2023-08-25 21:02:43,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f39ddaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:43, skipping insertion in model container [2023-08-25 21:02:43,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:02:43" (1/1) ... [2023-08-25 21:02:43,895 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 21:02:44,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:02:44,153 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 21:02:44,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:02:44,199 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 21:02:44,200 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 21:02:44,210 INFO L206 MainTranslator]: Completed translation [2023-08-25 21:02:44,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44 WrapperNode [2023-08-25 21:02:44,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 21:02:44,212 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 21:02:44,212 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 21:02:44,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 21:02:44,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (1/1) ... [2023-08-25 21:02:44,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (1/1) ... [2023-08-25 21:02:44,301 INFO L138 Inliner]: procedures = 28, calls = 81, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 840 [2023-08-25 21:02:44,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 21:02:44,302 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 21:02:44,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 21:02:44,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 21:02:44,316 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (1/1) ... [2023-08-25 21:02:44,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (1/1) ... [2023-08-25 21:02:44,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (1/1) ... [2023-08-25 21:02:44,324 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (1/1) ... [2023-08-25 21:02:44,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (1/1) ... [2023-08-25 21:02:44,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (1/1) ... [2023-08-25 21:02:44,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (1/1) ... [2023-08-25 21:02:44,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (1/1) ... [2023-08-25 21:02:44,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 21:02:44,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 21:02:44,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 21:02:44,386 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 21:02:44,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (1/1) ... [2023-08-25 21:02:44,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:02:44,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:02:44,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 21:02:44,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 21:02:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 21:02:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-25 21:02:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 21:02:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 21:02:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 21:02:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-25 21:02:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 21:02:44,452 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 21:02:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 21:02:44,452 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 21:02:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 21:02:44,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 21:02:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 21:02:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 21:02:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 21:02:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 21:02:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 21:02:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 21:02:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 21:02:44,457 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 21:02:44,619 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 21:02:44,621 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 21:02:45,613 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 21:02:46,521 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 21:02:46,521 INFO L302 CfgBuilder]: Removed 9 assume(true) statements. [2023-08-25 21:02:46,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:02:46 BoogieIcfgContainer [2023-08-25 21:02:46,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 21:02:46,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 21:02:46,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 21:02:46,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 21:02:46,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:02:43" (1/3) ... [2023-08-25 21:02:46,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f811ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:02:46, skipping insertion in model container [2023-08-25 21:02:46,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:02:44" (2/3) ... [2023-08-25 21:02:46,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f811ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:02:46, skipping insertion in model container [2023-08-25 21:02:46,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:02:46" (3/3) ... [2023-08-25 21:02:46,533 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2023-08-25 21:02:46,549 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 21:02:46,549 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 131 error locations. [2023-08-25 21:02:46,550 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 21:02:46,824 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 21:02:46,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 762 places, 793 transitions, 1610 flow [2023-08-25 21:02:47,208 INFO L124 PetriNetUnfolderBase]: 41/790 cut-off events. [2023-08-25 21:02:47,209 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 21:02:47,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 790 events. 41/790 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1557 event pairs, 0 based on Foata normal form. 0/618 useless extension candidates. Maximal degree in co-relation 550. Up to 2 conditions per place. [2023-08-25 21:02:47,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 762 places, 793 transitions, 1610 flow [2023-08-25 21:02:47,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 748 places, 779 transitions, 1576 flow [2023-08-25 21:02:47,245 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 21:02:47,252 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 748 places, 779 transitions, 1576 flow [2023-08-25 21:02:47,255 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 748 places, 779 transitions, 1576 flow [2023-08-25 21:02:47,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 748 places, 779 transitions, 1576 flow [2023-08-25 21:02:47,395 INFO L124 PetriNetUnfolderBase]: 41/779 cut-off events. [2023-08-25 21:02:47,396 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 21:02:47,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 792 conditions, 779 events. 41/779 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1528 event pairs, 0 based on Foata normal form. 0/608 useless extension candidates. Maximal degree in co-relation 550. Up to 2 conditions per place. [2023-08-25 21:02:47,426 INFO L119 LiptonReduction]: Number of co-enabled transitions 61610 [2023-08-25 21:03:07,224 WARN L234 SmtUtils]: Spent 6.97s on a formula simplification. DAG size of input: 428 DAG size of output: 1 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 21:03:32,614 WARN L234 SmtUtils]: Spent 21.89s on a formula simplification. DAG size of input: 423 DAG size of output: 150 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 21:03:51,570 WARN L234 SmtUtils]: Spent 17.44s on a formula simplification. DAG size of input: 475 DAG size of output: 172 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 21:04:09,194 INFO L134 LiptonReduction]: Checked pairs total: 346304 [2023-08-25 21:04:09,195 INFO L136 LiptonReduction]: Total number of compositions: 832 [2023-08-25 21:04:09,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 21:04:09,210 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@760022bb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 21:04:09,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 226 error locations. [2023-08-25 21:04:09,212 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 21:04:09,212 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 21:04:09,212 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 21:04:09,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:09,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 21:04:09,213 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:04:09,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:09,217 INFO L85 PathProgramCache]: Analyzing trace with hash 3710, now seen corresponding path program 1 times [2023-08-25 21:04:09,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:09,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038435996] [2023-08-25 21:04:09,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:09,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:04:09,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:09,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038435996] [2023-08-25 21:04:09,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038435996] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:04:09,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:04:09,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 21:04:09,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597671499] [2023-08-25 21:04:09,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:04:09,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 21:04:09,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:09,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 21:04:09,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 21:04:09,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 703 out of 1625 [2023-08-25 21:04:09,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 245 transitions, 508 flow. Second operand has 2 states, 2 states have (on average 703.5) internal successors, (1407), 2 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:09,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:09,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 703 of 1625 [2023-08-25 21:04:09,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:11,004 INFO L124 PetriNetUnfolderBase]: 5993/12605 cut-off events. [2023-08-25 21:04:11,005 INFO L125 PetriNetUnfolderBase]: For 474/474 co-relation queries the response was YES. [2023-08-25 21:04:11,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21318 conditions, 12605 events. 5993/12605 cut-off events. For 474/474 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 99020 event pairs, 4983 based on Foata normal form. 705/12114 useless extension candidates. Maximal degree in co-relation 18831. Up to 8471 conditions per place. [2023-08-25 21:04:11,095 INFO L140 encePairwiseOnDemand]: 1514/1625 looper letters, 68 selfloop transitions, 0 changer transitions 0/134 dead transitions. [2023-08-25 21:04:11,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 134 transitions, 422 flow [2023-08-25 21:04:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 21:04:11,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 21:04:11,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1585 transitions. [2023-08-25 21:04:11,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4876923076923077 [2023-08-25 21:04:11,113 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1585 transitions. [2023-08-25 21:04:11,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1585 transitions. [2023-08-25 21:04:11,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:11,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1585 transitions. [2023-08-25 21:04:11,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 792.5) internal successors, (1585), 2 states have internal predecessors, (1585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:11,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1625.0) internal successors, (4875), 3 states have internal predecessors, (4875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:11,137 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1625.0) internal successors, (4875), 3 states have internal predecessors, (4875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:11,139 INFO L175 Difference]: Start difference. First operand has 240 places, 245 transitions, 508 flow. Second operand 2 states and 1585 transitions. [2023-08-25 21:04:11,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 134 transitions, 422 flow [2023-08-25 21:04:11,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 134 transitions, 410 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 21:04:11,146 INFO L231 Difference]: Finished difference. Result has 129 places, 134 transitions, 274 flow [2023-08-25 21:04:11,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=274, PETRI_PLACES=129, PETRI_TRANSITIONS=134} [2023-08-25 21:04:11,151 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -111 predicate places. [2023-08-25 21:04:11,151 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 134 transitions, 274 flow [2023-08-25 21:04:11,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 703.5) internal successors, (1407), 2 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:11,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:11,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:11,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 21:04:11,153 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:04:11,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:11,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1350837398, now seen corresponding path program 1 times [2023-08-25 21:04:11,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:11,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502444893] [2023-08-25 21:04:11,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:11,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:11,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:04:11,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:11,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502444893] [2023-08-25 21:04:11,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502444893] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:04:11,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:04:11,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:04:11,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869561831] [2023-08-25 21:04:11,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:04:11,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:04:11,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:11,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:04:11,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:04:11,387 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1625 [2023-08-25 21:04:11,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 134 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 703.0) internal successors, (2109), 3 states have internal predecessors, (2109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:11,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:11,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1625 [2023-08-25 21:04:11,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:13,185 INFO L124 PetriNetUnfolderBase]: 7658/15379 cut-off events. [2023-08-25 21:04:13,188 INFO L125 PetriNetUnfolderBase]: For 140/295 co-relation queries the response was YES. [2023-08-25 21:04:13,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26240 conditions, 15379 events. 7658/15379 cut-off events. For 140/295 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 119010 event pairs, 3803 based on Foata normal form. 3/13674 useless extension candidates. Maximal degree in co-relation 26237. Up to 10057 conditions per place. [2023-08-25 21:04:13,270 INFO L140 encePairwiseOnDemand]: 1620/1625 looper letters, 106 selfloop transitions, 4 changer transitions 0/173 dead transitions. [2023-08-25 21:04:13,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 173 transitions, 574 flow [2023-08-25 21:04:13,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:04:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:04:13,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2211 transitions. [2023-08-25 21:04:13,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45353846153846156 [2023-08-25 21:04:13,276 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2211 transitions. [2023-08-25 21:04:13,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2211 transitions. [2023-08-25 21:04:13,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:13,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2211 transitions. [2023-08-25 21:04:13,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 737.0) internal successors, (2211), 3 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:13,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:13,294 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:13,295 INFO L175 Difference]: Start difference. First operand has 129 places, 134 transitions, 274 flow. Second operand 3 states and 2211 transitions. [2023-08-25 21:04:13,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 173 transitions, 574 flow [2023-08-25 21:04:13,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 173 transitions, 574 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:04:13,304 INFO L231 Difference]: Finished difference. Result has 131 places, 136 transitions, 296 flow [2023-08-25 21:04:13,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=131, PETRI_TRANSITIONS=136} [2023-08-25 21:04:13,306 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -109 predicate places. [2023-08-25 21:04:13,310 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 136 transitions, 296 flow [2023-08-25 21:04:13,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 703.0) internal successors, (2109), 3 states have internal predecessors, (2109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:13,312 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:13,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:13,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 21:04:13,313 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:04:13,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:13,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1050065043, now seen corresponding path program 1 times [2023-08-25 21:04:13,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:13,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762656555] [2023-08-25 21:04:13,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:13,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:13,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:04:13,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:13,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762656555] [2023-08-25 21:04:13,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762656555] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:04:13,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:04:13,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:04:13,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414773293] [2023-08-25 21:04:13,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:04:13,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:04:13,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:13,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:04:13,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:04:13,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 688 out of 1625 [2023-08-25 21:04:13,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 136 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 691.3333333333334) internal successors, (2074), 3 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:13,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:13,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 688 of 1625 [2023-08-25 21:04:13,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:14,863 INFO L124 PetriNetUnfolderBase]: 6673/14036 cut-off events. [2023-08-25 21:04:14,863 INFO L125 PetriNetUnfolderBase]: For 2105/2105 co-relation queries the response was YES. [2023-08-25 21:04:14,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25414 conditions, 14036 events. 6673/14036 cut-off events. For 2105/2105 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 110960 event pairs, 5625 based on Foata normal form. 0/12646 useless extension candidates. Maximal degree in co-relation 25410. Up to 9434 conditions per place. [2023-08-25 21:04:14,945 INFO L140 encePairwiseOnDemand]: 1622/1625 looper letters, 69 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2023-08-25 21:04:14,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 134 transitions, 432 flow [2023-08-25 21:04:14,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:04:14,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:04:14,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2134 transitions. [2023-08-25 21:04:14,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43774358974358973 [2023-08-25 21:04:14,951 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2134 transitions. [2023-08-25 21:04:14,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2134 transitions. [2023-08-25 21:04:14,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:14,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2134 transitions. [2023-08-25 21:04:14,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 711.3333333333334) internal successors, (2134), 3 states have internal predecessors, (2134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:14,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:14,968 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:14,968 INFO L175 Difference]: Start difference. First operand has 131 places, 136 transitions, 296 flow. Second operand 3 states and 2134 transitions. [2023-08-25 21:04:14,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 134 transitions, 432 flow [2023-08-25 21:04:14,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 134 transitions, 428 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:04:14,976 INFO L231 Difference]: Finished difference. Result has 130 places, 134 transitions, 290 flow [2023-08-25 21:04:14,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=130, PETRI_TRANSITIONS=134} [2023-08-25 21:04:14,979 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -110 predicate places. [2023-08-25 21:04:14,979 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 134 transitions, 290 flow [2023-08-25 21:04:14,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 691.3333333333334) internal successors, (2074), 3 states have internal predecessors, (2074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:14,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:14,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:14,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 21:04:14,981 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:04:14,981 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:14,981 INFO L85 PathProgramCache]: Analyzing trace with hash -332261441, now seen corresponding path program 1 times [2023-08-25 21:04:14,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:14,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208552332] [2023-08-25 21:04:14,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:14,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:04:15,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:15,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208552332] [2023-08-25 21:04:15,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208552332] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:04:15,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:04:15,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:04:15,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083831041] [2023-08-25 21:04:15,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:04:15,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:04:15,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:15,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:04:15,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:04:15,082 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 685 out of 1625 [2023-08-25 21:04:15,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 134 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 689.3333333333334) internal successors, (2068), 3 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:15,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:15,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 685 of 1625 [2023-08-25 21:04:15,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:16,337 INFO L124 PetriNetUnfolderBase]: 6673/14013 cut-off events. [2023-08-25 21:04:16,337 INFO L125 PetriNetUnfolderBase]: For 1671/1671 co-relation queries the response was YES. [2023-08-25 21:04:16,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25200 conditions, 14013 events. 6673/14013 cut-off events. For 1671/1671 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 110511 event pairs, 5625 based on Foata normal form. 0/12624 useless extension candidates. Maximal degree in co-relation 25195. Up to 9428 conditions per place. [2023-08-25 21:04:16,407 INFO L140 encePairwiseOnDemand]: 1623/1625 looper letters, 69 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2023-08-25 21:04:16,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 133 transitions, 428 flow [2023-08-25 21:04:16,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:04:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:04:16,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2124 transitions. [2023-08-25 21:04:16,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4356923076923077 [2023-08-25 21:04:16,413 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2124 transitions. [2023-08-25 21:04:16,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2124 transitions. [2023-08-25 21:04:16,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:16,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2124 transitions. [2023-08-25 21:04:16,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 708.0) internal successors, (2124), 3 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:16,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:16,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:16,428 INFO L175 Difference]: Start difference. First operand has 130 places, 134 transitions, 290 flow. Second operand 3 states and 2124 transitions. [2023-08-25 21:04:16,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 133 transitions, 428 flow [2023-08-25 21:04:16,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 133 transitions, 427 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:04:16,432 INFO L231 Difference]: Finished difference. Result has 130 places, 133 transitions, 289 flow [2023-08-25 21:04:16,432 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=289, PETRI_PLACES=130, PETRI_TRANSITIONS=133} [2023-08-25 21:04:16,433 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -110 predicate places. [2023-08-25 21:04:16,433 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 133 transitions, 289 flow [2023-08-25 21:04:16,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 689.3333333333334) internal successors, (2068), 3 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:16,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:16,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:16,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 21:04:16,434 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:04:16,435 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:16,435 INFO L85 PathProgramCache]: Analyzing trace with hash -203818806, now seen corresponding path program 1 times [2023-08-25 21:04:16,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:16,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062755200] [2023-08-25 21:04:16,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:16,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:04:16,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:16,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062755200] [2023-08-25 21:04:16,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062755200] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:04:16,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:04:16,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:04:16,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061709443] [2023-08-25 21:04:16,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:04:16,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:04:16,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:16,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:04:16,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:04:16,487 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 1625 [2023-08-25 21:04:16,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 133 transitions, 289 flow. Second operand has 3 states, 3 states have (on average 698.0) internal successors, (2094), 3 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:16,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:16,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 1625 [2023-08-25 21:04:16,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:18,464 INFO L124 PetriNetUnfolderBase]: 9683/18654 cut-off events. [2023-08-25 21:04:18,464 INFO L125 PetriNetUnfolderBase]: For 2111/2111 co-relation queries the response was YES. [2023-08-25 21:04:18,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34953 conditions, 18654 events. 9683/18654 cut-off events. For 2111/2111 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 145068 event pairs, 2662 based on Foata normal form. 0/16814 useless extension candidates. Maximal degree in co-relation 34948. Up to 9441 conditions per place. [2023-08-25 21:04:18,548 INFO L140 encePairwiseOnDemand]: 1621/1625 looper letters, 113 selfloop transitions, 2 changer transitions 0/176 dead transitions. [2023-08-25 21:04:18,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 176 transitions, 616 flow [2023-08-25 21:04:18,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:04:18,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:04:18,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2196 transitions. [2023-08-25 21:04:18,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45046153846153847 [2023-08-25 21:04:18,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2196 transitions. [2023-08-25 21:04:18,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2196 transitions. [2023-08-25 21:04:18,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:18,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2196 transitions. [2023-08-25 21:04:18,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 732.0) internal successors, (2196), 3 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:18,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:18,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:18,568 INFO L175 Difference]: Start difference. First operand has 130 places, 133 transitions, 289 flow. Second operand 3 states and 2196 transitions. [2023-08-25 21:04:18,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 176 transitions, 616 flow [2023-08-25 21:04:18,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 176 transitions, 615 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:04:18,573 INFO L231 Difference]: Finished difference. Result has 130 places, 133 transitions, 298 flow [2023-08-25 21:04:18,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=130, PETRI_TRANSITIONS=133} [2023-08-25 21:04:18,574 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -110 predicate places. [2023-08-25 21:04:18,574 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 133 transitions, 298 flow [2023-08-25 21:04:18,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 698.0) internal successors, (2094), 3 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:18,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:18,575 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:18,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 21:04:18,575 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:04:18,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:18,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1474707789, now seen corresponding path program 1 times [2023-08-25 21:04:18,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:18,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602073286] [2023-08-25 21:04:18,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:18,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:18,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:04:18,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:18,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602073286] [2023-08-25 21:04:18,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602073286] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:04:18,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:04:18,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:04:18,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731640180] [2023-08-25 21:04:18,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:04:18,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:04:18,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:18,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:04:18,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:04:18,654 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 1625 [2023-08-25 21:04:18,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 133 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:18,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:18,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 1625 [2023-08-25 21:04:18,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:20,389 INFO L124 PetriNetUnfolderBase]: 9911/20209 cut-off events. [2023-08-25 21:04:20,389 INFO L125 PetriNetUnfolderBase]: For 2711/2711 co-relation queries the response was YES. [2023-08-25 21:04:20,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37572 conditions, 20209 events. 9911/20209 cut-off events. For 2711/2711 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 167857 event pairs, 8165 based on Foata normal form. 0/18141 useless extension candidates. Maximal degree in co-relation 37567. Up to 13996 conditions per place. [2023-08-25 21:04:20,625 INFO L140 encePairwiseOnDemand]: 1623/1625 looper letters, 71 selfloop transitions, 1 changer transitions 0/132 dead transitions. [2023-08-25 21:04:20,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 132 transitions, 440 flow [2023-08-25 21:04:20,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:04:20,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:04:20,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2151 transitions. [2023-08-25 21:04:20,638 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4412307692307692 [2023-08-25 21:04:20,638 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2151 transitions. [2023-08-25 21:04:20,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2151 transitions. [2023-08-25 21:04:20,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:20,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2151 transitions. [2023-08-25 21:04:20,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 717.0) internal successors, (2151), 3 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:20,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:20,652 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:20,652 INFO L175 Difference]: Start difference. First operand has 130 places, 133 transitions, 298 flow. Second operand 3 states and 2151 transitions. [2023-08-25 21:04:20,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 132 transitions, 440 flow [2023-08-25 21:04:20,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 132 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:04:20,657 INFO L231 Difference]: Finished difference. Result has 131 places, 132 transitions, 298 flow [2023-08-25 21:04:20,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=131, PETRI_TRANSITIONS=132} [2023-08-25 21:04:20,657 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -109 predicate places. [2023-08-25 21:04:20,658 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 132 transitions, 298 flow [2023-08-25 21:04:20,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 699.0) internal successors, (2097), 3 states have internal predecessors, (2097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:20,658 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:20,659 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:20,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 21:04:20,659 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:04:20,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:20,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1436684924, now seen corresponding path program 1 times [2023-08-25 21:04:20,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:20,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494478755] [2023-08-25 21:04:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:20,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:21,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:04:21,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:21,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494478755] [2023-08-25 21:04:21,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494478755] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:04:21,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:04:21,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:04:21,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944953285] [2023-08-25 21:04:21,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:04:21,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:04:21,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:21,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:04:21,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:04:21,136 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 1625 [2023-08-25 21:04:21,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 132 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 603.6666666666666) internal successors, (3622), 6 states have internal predecessors, (3622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:21,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:21,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 1625 [2023-08-25 21:04:21,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:32,481 INFO L124 PetriNetUnfolderBase]: 86644/119109 cut-off events. [2023-08-25 21:04:32,481 INFO L125 PetriNetUnfolderBase]: For 20200/20200 co-relation queries the response was YES. [2023-08-25 21:04:32,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259427 conditions, 119109 events. 86644/119109 cut-off events. For 20200/20200 co-relation queries the response was YES. Maximal size of possible extension queue 1171. Compared 734778 event pairs, 8398 based on Foata normal form. 0/104322 useless extension candidates. Maximal degree in co-relation 259421. Up to 47716 conditions per place. [2023-08-25 21:04:33,051 INFO L140 encePairwiseOnDemand]: 1620/1625 looper letters, 440 selfloop transitions, 4 changer transitions 0/455 dead transitions. [2023-08-25 21:04:33,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 455 transitions, 1912 flow [2023-08-25 21:04:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:04:33,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:04:33,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4031 transitions. [2023-08-25 21:04:33,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4134358974358974 [2023-08-25 21:04:33,061 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4031 transitions. [2023-08-25 21:04:33,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4031 transitions. [2023-08-25 21:04:33,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:33,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4031 transitions. [2023-08-25 21:04:33,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 671.8333333333334) internal successors, (4031), 6 states have internal predecessors, (4031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:33,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:33,082 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:33,082 INFO L175 Difference]: Start difference. First operand has 131 places, 132 transitions, 298 flow. Second operand 6 states and 4031 transitions. [2023-08-25 21:04:33,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 455 transitions, 1912 flow [2023-08-25 21:04:33,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 455 transitions, 1911 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:04:33,090 INFO L231 Difference]: Finished difference. Result has 134 places, 131 transitions, 303 flow [2023-08-25 21:04:33,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=134, PETRI_TRANSITIONS=131} [2023-08-25 21:04:33,091 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -106 predicate places. [2023-08-25 21:04:33,091 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 131 transitions, 303 flow [2023-08-25 21:04:33,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 603.6666666666666) internal successors, (3622), 6 states have internal predecessors, (3622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:33,092 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:33,092 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:33,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 21:04:33,092 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:04:33,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:33,092 INFO L85 PathProgramCache]: Analyzing trace with hash 145700784, now seen corresponding path program 1 times [2023-08-25 21:04:33,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:33,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695564439] [2023-08-25 21:04:33,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:33,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:33,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:04:33,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:33,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695564439] [2023-08-25 21:04:33,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695564439] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:04:33,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:04:33,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:04:33,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924181375] [2023-08-25 21:04:33,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:04:33,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:04:33,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:33,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:04:33,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:04:33,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 691 out of 1625 [2023-08-25 21:04:33,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 131 transitions, 303 flow. Second operand has 3 states, 3 states have (on average 696.6666666666666) internal successors, (2090), 3 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:33,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:33,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 691 of 1625 [2023-08-25 21:04:33,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:35,147 INFO L124 PetriNetUnfolderBase]: 10272/19902 cut-off events. [2023-08-25 21:04:35,147 INFO L125 PetriNetUnfolderBase]: For 4550/4550 co-relation queries the response was YES. [2023-08-25 21:04:35,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39698 conditions, 19902 events. 10272/19902 cut-off events. For 4550/4550 co-relation queries the response was YES. Maximal size of possible extension queue 351. Compared 157052 event pairs, 2529 based on Foata normal form. 0/17892 useless extension candidates. Maximal degree in co-relation 39692. Up to 13905 conditions per place. [2023-08-25 21:04:35,232 INFO L140 encePairwiseOnDemand]: 1620/1625 looper letters, 95 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2023-08-25 21:04:35,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 152 transitions, 552 flow [2023-08-25 21:04:35,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:04:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:04:35,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2168 transitions. [2023-08-25 21:04:35,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44471794871794873 [2023-08-25 21:04:35,238 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2168 transitions. [2023-08-25 21:04:35,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2168 transitions. [2023-08-25 21:04:35,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:35,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2168 transitions. [2023-08-25 21:04:35,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 722.6666666666666) internal successors, (2168), 3 states have internal predecessors, (2168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:35,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:35,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:35,251 INFO L175 Difference]: Start difference. First operand has 134 places, 131 transitions, 303 flow. Second operand 3 states and 2168 transitions. [2023-08-25 21:04:35,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 152 transitions, 552 flow [2023-08-25 21:04:35,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 152 transitions, 543 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 21:04:35,259 INFO L231 Difference]: Finished difference. Result has 130 places, 130 transitions, 304 flow [2023-08-25 21:04:35,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=130, PETRI_TRANSITIONS=130} [2023-08-25 21:04:35,260 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -110 predicate places. [2023-08-25 21:04:35,260 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 130 transitions, 304 flow [2023-08-25 21:04:35,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 696.6666666666666) internal successors, (2090), 3 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:35,261 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:35,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:35,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 21:04:35,262 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:04:35,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:35,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2074227674, now seen corresponding path program 1 times [2023-08-25 21:04:35,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:35,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147935501] [2023-08-25 21:04:35,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:35,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:35,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:04:35,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:35,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147935501] [2023-08-25 21:04:35,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147935501] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:04:35,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:04:35,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:04:35,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024340108] [2023-08-25 21:04:35,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:04:35,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:04:35,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:35,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:04:35,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 21:04:35,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 627 out of 1625 [2023-08-25 21:04:35,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 130 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 630.25) internal successors, (2521), 4 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:35,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:35,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 627 of 1625 [2023-08-25 21:04:35,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:38,114 INFO L124 PetriNetUnfolderBase]: 13192/27111 cut-off events. [2023-08-25 21:04:38,114 INFO L125 PetriNetUnfolderBase]: For 4810/4810 co-relation queries the response was YES. [2023-08-25 21:04:38,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51394 conditions, 27111 events. 13192/27111 cut-off events. For 4810/4810 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 228818 event pairs, 10734 based on Foata normal form. 425/24702 useless extension candidates. Maximal degree in co-relation 51388. Up to 13997 conditions per place. [2023-08-25 21:04:38,265 INFO L140 encePairwiseOnDemand]: 1614/1625 looper letters, 132 selfloop transitions, 10 changer transitions 0/198 dead transitions. [2023-08-25 21:04:38,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 198 transitions, 748 flow [2023-08-25 21:04:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 21:04:38,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 21:04:38,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3269 transitions. [2023-08-25 21:04:38,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40233846153846153 [2023-08-25 21:04:38,272 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3269 transitions. [2023-08-25 21:04:38,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3269 transitions. [2023-08-25 21:04:38,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:38,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3269 transitions. [2023-08-25 21:04:38,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 653.8) internal successors, (3269), 5 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:38,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1625.0) internal successors, (9750), 6 states have internal predecessors, (9750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:38,289 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1625.0) internal successors, (9750), 6 states have internal predecessors, (9750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:38,289 INFO L175 Difference]: Start difference. First operand has 130 places, 130 transitions, 304 flow. Second operand 5 states and 3269 transitions. [2023-08-25 21:04:38,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 198 transitions, 748 flow [2023-08-25 21:04:38,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 198 transitions, 748 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:04:38,293 INFO L231 Difference]: Finished difference. Result has 137 places, 139 transitions, 383 flow [2023-08-25 21:04:38,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=383, PETRI_PLACES=137, PETRI_TRANSITIONS=139} [2023-08-25 21:04:38,295 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -103 predicate places. [2023-08-25 21:04:38,295 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 139 transitions, 383 flow [2023-08-25 21:04:38,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 630.25) internal successors, (2521), 4 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:38,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:38,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:38,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 21:04:38,298 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:04:38,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:38,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1328616439, now seen corresponding path program 1 times [2023-08-25 21:04:38,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:38,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555760656] [2023-08-25 21:04:38,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:38,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:04:38,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:38,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555760656] [2023-08-25 21:04:38,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555760656] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:04:38,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:04:38,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 21:04:38,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264400651] [2023-08-25 21:04:38,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:04:38,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:04:38,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:38,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:04:38,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 21:04:38,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 628 out of 1625 [2023-08-25 21:04:38,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 139 transitions, 383 flow. Second operand has 4 states, 4 states have (on average 631.5) internal successors, (2526), 4 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:38,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:38,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 628 of 1625 [2023-08-25 21:04:38,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:04:42,055 INFO L124 PetriNetUnfolderBase]: 17292/37323 cut-off events. [2023-08-25 21:04:42,055 INFO L125 PetriNetUnfolderBase]: For 7675/7675 co-relation queries the response was YES. [2023-08-25 21:04:42,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70049 conditions, 37323 events. 17292/37323 cut-off events. For 7675/7675 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 342192 event pairs, 14680 based on Foata normal form. 319/34196 useless extension candidates. Maximal degree in co-relation 70039. Up to 18977 conditions per place. [2023-08-25 21:04:42,436 INFO L140 encePairwiseOnDemand]: 1620/1625 looper letters, 136 selfloop transitions, 6 changer transitions 0/198 dead transitions. [2023-08-25 21:04:42,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 198 transitions, 828 flow [2023-08-25 21:04:42,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:04:42,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:04:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2635 transitions. [2023-08-25 21:04:42,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4053846153846154 [2023-08-25 21:04:42,441 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2635 transitions. [2023-08-25 21:04:42,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2635 transitions. [2023-08-25 21:04:42,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:04:42,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2635 transitions. [2023-08-25 21:04:42,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 658.75) internal successors, (2635), 4 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:42,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1625.0) internal successors, (8125), 5 states have internal predecessors, (8125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:42,454 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1625.0) internal successors, (8125), 5 states have internal predecessors, (8125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:42,454 INFO L175 Difference]: Start difference. First operand has 137 places, 139 transitions, 383 flow. Second operand 4 states and 2635 transitions. [2023-08-25 21:04:42,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 198 transitions, 828 flow [2023-08-25 21:04:42,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 198 transitions, 824 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-25 21:04:42,462 INFO L231 Difference]: Finished difference. Result has 141 places, 141 transitions, 417 flow [2023-08-25 21:04:42,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=417, PETRI_PLACES=141, PETRI_TRANSITIONS=141} [2023-08-25 21:04:42,463 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -99 predicate places. [2023-08-25 21:04:42,463 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 141 transitions, 417 flow [2023-08-25 21:04:42,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 631.5) internal successors, (2526), 4 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:42,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:04:42,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:04:42,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 21:04:42,465 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:04:42,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:04:42,465 INFO L85 PathProgramCache]: Analyzing trace with hash 319301629, now seen corresponding path program 1 times [2023-08-25 21:04:42,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:04:42,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621003777] [2023-08-25 21:04:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:04:42,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:04:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:04:42,971 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:04:42,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:04:42,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621003777] [2023-08-25 21:04:42,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621003777] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:04:42,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:04:42,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:04:42,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389658680] [2023-08-25 21:04:42,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:04:42,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:04:42,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:04:42,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:04:42,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:04:42,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 597 out of 1625 [2023-08-25 21:04:42,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 141 transitions, 417 flow. Second operand has 6 states, 6 states have (on average 600.3333333333334) internal successors, (3602), 6 states have internal predecessors, (3602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:04:42,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:04:42,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 597 of 1625 [2023-08-25 21:04:42,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:05:03,205 INFO L124 PetriNetUnfolderBase]: 132837/194257 cut-off events. [2023-08-25 21:05:03,206 INFO L125 PetriNetUnfolderBase]: For 60064/60064 co-relation queries the response was YES. [2023-08-25 21:05:03,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444980 conditions, 194257 events. 132837/194257 cut-off events. For 60064/60064 co-relation queries the response was YES. Maximal size of possible extension queue 1485. Compared 1322663 event pairs, 102830 based on Foata normal form. 0/183661 useless extension candidates. Maximal degree in co-relation 444968. Up to 167653 conditions per place. [2023-08-25 21:05:04,476 INFO L140 encePairwiseOnDemand]: 1619/1625 looper letters, 415 selfloop transitions, 5 changer transitions 0/428 dead transitions. [2023-08-25 21:05:04,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 428 transitions, 1883 flow [2023-08-25 21:05:04,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:05:04,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:05:04,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3986 transitions. [2023-08-25 21:05:04,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4088205128205128 [2023-08-25 21:05:04,484 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3986 transitions. [2023-08-25 21:05:04,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3986 transitions. [2023-08-25 21:05:04,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:05:04,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3986 transitions. [2023-08-25 21:05:04,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 664.3333333333334) internal successors, (3986), 6 states have internal predecessors, (3986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:04,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:04,502 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:04,502 INFO L175 Difference]: Start difference. First operand has 141 places, 141 transitions, 417 flow. Second operand 6 states and 3986 transitions. [2023-08-25 21:05:04,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 428 transitions, 1883 flow [2023-08-25 21:05:04,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 428 transitions, 1875 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 21:05:04,592 INFO L231 Difference]: Finished difference. Result has 144 places, 140 transitions, 417 flow [2023-08-25 21:05:04,592 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=417, PETRI_PLACES=144, PETRI_TRANSITIONS=140} [2023-08-25 21:05:04,593 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -96 predicate places. [2023-08-25 21:05:04,593 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 140 transitions, 417 flow [2023-08-25 21:05:04,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 600.3333333333334) internal successors, (3602), 6 states have internal predecessors, (3602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:04,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:05:04,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:05:04,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 21:05:04,595 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:05:04,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:05:04,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1136231778, now seen corresponding path program 1 times [2023-08-25 21:05:04,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:05:04,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863075710] [2023-08-25 21:05:04,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:05:04,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:05:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:05:04,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:05:04,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:05:04,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863075710] [2023-08-25 21:05:04,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863075710] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:05:04,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:05:04,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:05:04,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109174211] [2023-08-25 21:05:04,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:05:04,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 21:05:04,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:05:04,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 21:05:04,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 21:05:04,685 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 671 out of 1625 [2023-08-25 21:05:04,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 140 transitions, 417 flow. Second operand has 5 states, 5 states have (on average 674.6) internal successors, (3373), 5 states have internal predecessors, (3373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:04,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:05:04,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 671 of 1625 [2023-08-25 21:05:04,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:05:09,025 INFO L124 PetriNetUnfolderBase]: 21513/42954 cut-off events. [2023-08-25 21:05:09,026 INFO L125 PetriNetUnfolderBase]: For 12504/12504 co-relation queries the response was YES. [2023-08-25 21:05:09,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86970 conditions, 42954 events. 21513/42954 cut-off events. For 12504/12504 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 374988 event pairs, 18161 based on Foata normal form. 356/41063 useless extension candidates. Maximal degree in co-relation 86958. Up to 30303 conditions per place. [2023-08-25 21:05:09,296 INFO L140 encePairwiseOnDemand]: 1619/1625 looper letters, 139 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2023-08-25 21:05:09,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 194 transitions, 891 flow [2023-08-25 21:05:09,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 21:05:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 21:05:09,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3476 transitions. [2023-08-25 21:05:09,301 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4278153846153846 [2023-08-25 21:05:09,301 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3476 transitions. [2023-08-25 21:05:09,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3476 transitions. [2023-08-25 21:05:09,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:05:09,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3476 transitions. [2023-08-25 21:05:09,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 695.2) internal successors, (3476), 5 states have internal predecessors, (3476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:09,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1625.0) internal successors, (9750), 6 states have internal predecessors, (9750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:09,314 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1625.0) internal successors, (9750), 6 states have internal predecessors, (9750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:09,315 INFO L175 Difference]: Start difference. First operand has 144 places, 140 transitions, 417 flow. Second operand 5 states and 3476 transitions. [2023-08-25 21:05:09,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 194 transitions, 891 flow [2023-08-25 21:05:09,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 194 transitions, 877 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 21:05:09,330 INFO L231 Difference]: Finished difference. Result has 146 places, 144 transitions, 452 flow [2023-08-25 21:05:09,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=452, PETRI_PLACES=146, PETRI_TRANSITIONS=144} [2023-08-25 21:05:09,330 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -94 predicate places. [2023-08-25 21:05:09,330 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 144 transitions, 452 flow [2023-08-25 21:05:09,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 674.6) internal successors, (3373), 5 states have internal predecessors, (3373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:09,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:05:09,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:05:09,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 21:05:09,332 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:05:09,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:05:09,332 INFO L85 PathProgramCache]: Analyzing trace with hash 314952983, now seen corresponding path program 1 times [2023-08-25 21:05:09,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:05:09,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841712477] [2023-08-25 21:05:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:05:09,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:05:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:05:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:05:09,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:05:09,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841712477] [2023-08-25 21:05:09,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841712477] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:05:09,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:05:09,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:05:09,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633439258] [2023-08-25 21:05:09,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:05:09,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:05:09,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:05:09,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:05:09,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:05:09,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 700 out of 1625 [2023-08-25 21:05:09,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 144 transitions, 452 flow. Second operand has 3 states, 3 states have (on average 705.0) internal successors, (2115), 3 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:09,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:05:09,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 700 of 1625 [2023-08-25 21:05:09,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:05:13,177 INFO L124 PetriNetUnfolderBase]: 17397/34197 cut-off events. [2023-08-25 21:05:13,177 INFO L125 PetriNetUnfolderBase]: For 18768/18768 co-relation queries the response was YES. [2023-08-25 21:05:13,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74525 conditions, 34197 events. 17397/34197 cut-off events. For 18768/18768 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 277482 event pairs, 8327 based on Foata normal form. 1596/34687 useless extension candidates. Maximal degree in co-relation 74510. Up to 15404 conditions per place. [2023-08-25 21:05:13,435 INFO L140 encePairwiseOnDemand]: 1622/1625 looper letters, 136 selfloop transitions, 2 changer transitions 0/193 dead transitions. [2023-08-25 21:05:13,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 193 transitions, 862 flow [2023-08-25 21:05:13,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:05:13,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:05:13,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2216 transitions. [2023-08-25 21:05:13,438 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45456410256410257 [2023-08-25 21:05:13,438 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2216 transitions. [2023-08-25 21:05:13,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2216 transitions. [2023-08-25 21:05:13,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:05:13,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2216 transitions. [2023-08-25 21:05:13,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 738.6666666666666) internal successors, (2216), 3 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:13,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:13,447 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:13,447 INFO L175 Difference]: Start difference. First operand has 146 places, 144 transitions, 452 flow. Second operand 3 states and 2216 transitions. [2023-08-25 21:05:13,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 193 transitions, 862 flow [2023-08-25 21:05:13,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 193 transitions, 859 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:05:13,459 INFO L231 Difference]: Finished difference. Result has 148 places, 145 transitions, 463 flow [2023-08-25 21:05:13,459 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=463, PETRI_PLACES=148, PETRI_TRANSITIONS=145} [2023-08-25 21:05:13,459 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -92 predicate places. [2023-08-25 21:05:13,460 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 145 transitions, 463 flow [2023-08-25 21:05:13,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 705.0) internal successors, (2115), 3 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:13,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:05:13,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:05:13,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 21:05:13,460 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:05:13,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:05:13,461 INFO L85 PathProgramCache]: Analyzing trace with hash -448243563, now seen corresponding path program 1 times [2023-08-25 21:05:13,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:05:13,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822478108] [2023-08-25 21:05:13,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:05:13,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:05:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:05:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:05:13,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:05:13,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822478108] [2023-08-25 21:05:13,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822478108] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:05:13,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:05:13,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:05:13,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755473174] [2023-08-25 21:05:13,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:05:13,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:05:13,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:05:13,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:05:13,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:05:13,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 593 out of 1625 [2023-08-25 21:05:13,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 145 transitions, 463 flow. Second operand has 6 states, 6 states have (on average 597.0) internal successors, (3582), 6 states have internal predecessors, (3582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:13,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:05:13,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 593 of 1625 [2023-08-25 21:05:13,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:05:34,814 INFO L124 PetriNetUnfolderBase]: 141506/201825 cut-off events. [2023-08-25 21:05:34,814 INFO L125 PetriNetUnfolderBase]: For 144001/144049 co-relation queries the response was YES. [2023-08-25 21:05:35,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505386 conditions, 201825 events. 141506/201825 cut-off events. For 144001/144049 co-relation queries the response was YES. Maximal size of possible extension queue 1352. Compared 1296960 event pairs, 31289 based on Foata normal form. 0/196906 useless extension candidates. Maximal degree in co-relation 505370. Up to 136511 conditions per place. [2023-08-25 21:05:36,310 INFO L140 encePairwiseOnDemand]: 1617/1625 looper letters, 289 selfloop transitions, 5 changer transitions 0/302 dead transitions. [2023-08-25 21:05:36,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 302 transitions, 1521 flow [2023-08-25 21:05:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:05:36,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:05:36,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3817 transitions. [2023-08-25 21:05:36,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3914871794871795 [2023-08-25 21:05:36,315 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3817 transitions. [2023-08-25 21:05:36,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3817 transitions. [2023-08-25 21:05:36,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:05:36,316 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3817 transitions. [2023-08-25 21:05:36,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 636.1666666666666) internal successors, (3817), 6 states have internal predecessors, (3817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:36,325 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:36,326 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:36,326 INFO L175 Difference]: Start difference. First operand has 148 places, 145 transitions, 463 flow. Second operand 6 states and 3817 transitions. [2023-08-25 21:05:36,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 302 transitions, 1521 flow [2023-08-25 21:05:36,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 302 transitions, 1515 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:05:36,397 INFO L231 Difference]: Finished difference. Result has 149 places, 142 transitions, 465 flow [2023-08-25 21:05:36,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=465, PETRI_PLACES=149, PETRI_TRANSITIONS=142} [2023-08-25 21:05:36,398 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -91 predicate places. [2023-08-25 21:05:36,398 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 142 transitions, 465 flow [2023-08-25 21:05:36,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 597.0) internal successors, (3582), 6 states have internal predecessors, (3582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:36,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:05:36,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:05:36,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 21:05:36,399 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:05:36,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:05:36,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1264545962, now seen corresponding path program 1 times [2023-08-25 21:05:36,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:05:36,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070412998] [2023-08-25 21:05:36,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:05:36,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:05:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:05:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:05:36,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:05:36,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070412998] [2023-08-25 21:05:36,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070412998] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:05:36,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:05:36,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:05:36,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542524970] [2023-08-25 21:05:36,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:05:36,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:05:36,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:05:36,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:05:36,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:05:36,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 1625 [2023-08-25 21:05:36,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 142 transitions, 465 flow. Second operand has 3 states, 3 states have (on average 701.6666666666666) internal successors, (2105), 3 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:36,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:05:36,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 1625 [2023-08-25 21:05:36,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:05:40,389 INFO L124 PetriNetUnfolderBase]: 17701/35233 cut-off events. [2023-08-25 21:05:40,389 INFO L125 PetriNetUnfolderBase]: For 21581/21581 co-relation queries the response was YES. [2023-08-25 21:05:40,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78179 conditions, 35233 events. 17701/35233 cut-off events. For 21581/21581 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 289904 event pairs, 14555 based on Foata normal form. 0/34480 useless extension candidates. Maximal degree in co-relation 78163. Up to 24259 conditions per place. [2023-08-25 21:05:40,647 INFO L140 encePairwiseOnDemand]: 1623/1625 looper letters, 118 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2023-08-25 21:05:40,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 171 transitions, 807 flow [2023-08-25 21:05:40,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:05:40,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:05:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2178 transitions. [2023-08-25 21:05:40,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44676923076923075 [2023-08-25 21:05:40,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2178 transitions. [2023-08-25 21:05:40,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2178 transitions. [2023-08-25 21:05:40,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:05:40,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2178 transitions. [2023-08-25 21:05:40,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 726.0) internal successors, (2178), 3 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:40,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:40,656 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:40,656 INFO L175 Difference]: Start difference. First operand has 149 places, 142 transitions, 465 flow. Second operand 3 states and 2178 transitions. [2023-08-25 21:05:40,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 171 transitions, 807 flow [2023-08-25 21:05:40,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 171 transitions, 797 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 21:05:40,677 INFO L231 Difference]: Finished difference. Result has 146 places, 143 transitions, 473 flow [2023-08-25 21:05:40,677 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=473, PETRI_PLACES=146, PETRI_TRANSITIONS=143} [2023-08-25 21:05:40,677 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -94 predicate places. [2023-08-25 21:05:40,678 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 143 transitions, 473 flow [2023-08-25 21:05:40,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 701.6666666666666) internal successors, (2105), 3 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:40,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:05:40,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:05:40,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 21:05:40,678 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:05:40,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:05:40,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1446355376, now seen corresponding path program 1 times [2023-08-25 21:05:40,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:05:40,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516779921] [2023-08-25 21:05:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:05:40,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:05:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:05:41,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:05:41,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:05:41,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516779921] [2023-08-25 21:05:41,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516779921] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:05:41,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:05:41,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:05:41,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023886973] [2023-08-25 21:05:41,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:05:41,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:05:41,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:05:41,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:05:41,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:05:41,088 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 597 out of 1625 [2023-08-25 21:05:41,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 143 transitions, 473 flow. Second operand has 6 states, 6 states have (on average 602.1666666666666) internal successors, (3613), 6 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:05:41,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:05:41,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 597 of 1625 [2023-08-25 21:05:41,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:06:02,525 INFO L124 PetriNetUnfolderBase]: 138917/197152 cut-off events. [2023-08-25 21:06:02,525 INFO L125 PetriNetUnfolderBase]: For 140692/140740 co-relation queries the response was YES. [2023-08-25 21:06:03,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 493878 conditions, 197152 events. 138917/197152 cut-off events. For 140692/140740 co-relation queries the response was YES. Maximal size of possible extension queue 1296. Compared 1249892 event pairs, 84145 based on Foata normal form. 0/193245 useless extension candidates. Maximal degree in co-relation 493862. Up to 135353 conditions per place. [2023-08-25 21:06:04,071 INFO L140 encePairwiseOnDemand]: 1619/1625 looper letters, 290 selfloop transitions, 5 changer transitions 0/302 dead transitions. [2023-08-25 21:06:04,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 302 transitions, 1533 flow [2023-08-25 21:06:04,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:06:04,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:06:04,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3838 transitions. [2023-08-25 21:06:04,076 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39364102564102565 [2023-08-25 21:06:04,076 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3838 transitions. [2023-08-25 21:06:04,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3838 transitions. [2023-08-25 21:06:04,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:06:04,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3838 transitions. [2023-08-25 21:06:04,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 639.6666666666666) internal successors, (3838), 6 states have internal predecessors, (3838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:04,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:04,086 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:04,086 INFO L175 Difference]: Start difference. First operand has 146 places, 143 transitions, 473 flow. Second operand 6 states and 3838 transitions. [2023-08-25 21:06:04,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 302 transitions, 1533 flow [2023-08-25 21:06:04,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 302 transitions, 1533 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:06:04,147 INFO L231 Difference]: Finished difference. Result has 150 places, 142 transitions, 481 flow [2023-08-25 21:06:04,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=481, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2023-08-25 21:06:04,148 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -90 predicate places. [2023-08-25 21:06:04,148 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 481 flow [2023-08-25 21:06:04,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 602.1666666666666) internal successors, (3613), 6 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:04,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:06:04,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:06:04,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 21:06:04,150 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:06:04,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:06:04,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1587178284, now seen corresponding path program 1 times [2023-08-25 21:06:04,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:06:04,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499836039] [2023-08-25 21:06:04,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:06:04,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:06:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:06:04,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:06:04,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:06:04,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499836039] [2023-08-25 21:06:04,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499836039] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:06:04,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:06:04,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:06:04,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179648806] [2023-08-25 21:06:04,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:06:04,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:06:04,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:06:04,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:06:04,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:06:04,233 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 694 out of 1625 [2023-08-25 21:06:04,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 481 flow. Second operand has 3 states, 3 states have (on average 702.6666666666666) internal successors, (2108), 3 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:04,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:06:04,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 694 of 1625 [2023-08-25 21:06:04,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:06:08,163 INFO L124 PetriNetUnfolderBase]: 18293/35468 cut-off events. [2023-08-25 21:06:08,163 INFO L125 PetriNetUnfolderBase]: For 22372/22372 co-relation queries the response was YES. [2023-08-25 21:06:08,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80007 conditions, 35468 events. 18293/35468 cut-off events. For 22372/22372 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 284728 event pairs, 15053 based on Foata normal form. 0/34942 useless extension candidates. Maximal degree in co-relation 79990. Up to 25121 conditions per place. [2023-08-25 21:06:08,430 INFO L140 encePairwiseOnDemand]: 1623/1625 looper letters, 119 selfloop transitions, 2 changer transitions 0/169 dead transitions. [2023-08-25 21:06:08,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 169 transitions, 815 flow [2023-08-25 21:06:08,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:06:08,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:06:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2179 transitions. [2023-08-25 21:06:08,434 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.446974358974359 [2023-08-25 21:06:08,434 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2179 transitions. [2023-08-25 21:06:08,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2179 transitions. [2023-08-25 21:06:08,435 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:06:08,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2179 transitions. [2023-08-25 21:06:08,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 726.3333333333334) internal successors, (2179), 3 states have internal predecessors, (2179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:08,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:08,441 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:08,441 INFO L175 Difference]: Start difference. First operand has 150 places, 142 transitions, 481 flow. Second operand 3 states and 2179 transitions. [2023-08-25 21:06:08,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 169 transitions, 815 flow [2023-08-25 21:06:08,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 169 transitions, 805 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 21:06:08,464 INFO L231 Difference]: Finished difference. Result has 146 places, 141 transitions, 473 flow [2023-08-25 21:06:08,464 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=473, PETRI_PLACES=146, PETRI_TRANSITIONS=141} [2023-08-25 21:06:08,464 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -94 predicate places. [2023-08-25 21:06:08,464 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 141 transitions, 473 flow [2023-08-25 21:06:08,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 702.6666666666666) internal successors, (2108), 3 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:08,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:06:08,465 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:06:08,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 21:06:08,465 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:06:08,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:06:08,466 INFO L85 PathProgramCache]: Analyzing trace with hash 889047828, now seen corresponding path program 1 times [2023-08-25 21:06:08,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:06:08,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521356953] [2023-08-25 21:06:08,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:06:08,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:06:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:06:09,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 21:06:09,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:06:09,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521356953] [2023-08-25 21:06:09,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521356953] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:06:09,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:06:09,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:06:09,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442506004] [2023-08-25 21:06:09,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:06:09,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:06:09,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:06:09,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:06:09,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:06:09,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 1625 [2023-08-25 21:06:09,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 141 transitions, 473 flow. Second operand has 6 states, 6 states have (on average 607.1666666666666) internal successors, (3643), 6 states have internal predecessors, (3643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:09,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:06:09,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 1625 [2023-08-25 21:06:09,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:06:30,867 INFO L124 PetriNetUnfolderBase]: 138469/195441 cut-off events. [2023-08-25 21:06:30,867 INFO L125 PetriNetUnfolderBase]: For 140142/140190 co-relation queries the response was YES. [2023-08-25 21:06:31,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491204 conditions, 195441 events. 138469/195441 cut-off events. For 140142/140190 co-relation queries the response was YES. Maximal size of possible extension queue 1268. Compared 1222516 event pairs, 117284 based on Foata normal form. 0/191775 useless extension candidates. Maximal degree in co-relation 491187. Up to 188049 conditions per place. [2023-08-25 21:06:32,390 INFO L140 encePairwiseOnDemand]: 1620/1625 looper letters, 370 selfloop transitions, 4 changer transitions 0/380 dead transitions. [2023-08-25 21:06:32,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 380 transitions, 1787 flow [2023-08-25 21:06:32,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:06:32,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:06:32,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3953 transitions. [2023-08-25 21:06:32,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4054358974358974 [2023-08-25 21:06:32,396 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3953 transitions. [2023-08-25 21:06:32,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3953 transitions. [2023-08-25 21:06:32,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:06:32,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3953 transitions. [2023-08-25 21:06:32,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 658.8333333333334) internal successors, (3953), 6 states have internal predecessors, (3953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:32,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:32,408 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:32,408 INFO L175 Difference]: Start difference. First operand has 146 places, 141 transitions, 473 flow. Second operand 6 states and 3953 transitions. [2023-08-25 21:06:32,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 380 transitions, 1787 flow [2023-08-25 21:06:32,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 380 transitions, 1785 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:06:32,481 INFO L231 Difference]: Finished difference. Result has 149 places, 140 transitions, 477 flow [2023-08-25 21:06:32,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=477, PETRI_PLACES=149, PETRI_TRANSITIONS=140} [2023-08-25 21:06:32,482 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -91 predicate places. [2023-08-25 21:06:32,482 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 140 transitions, 477 flow [2023-08-25 21:06:32,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 607.1666666666666) internal successors, (3643), 6 states have internal predecessors, (3643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:32,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:06:32,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:06:32,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 21:06:32,483 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:06:32,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:06:32,483 INFO L85 PathProgramCache]: Analyzing trace with hash -2022242700, now seen corresponding path program 1 times [2023-08-25 21:06:32,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:06:32,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888474228] [2023-08-25 21:06:32,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:06:32,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:06:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:06:32,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:06:32,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:06:32,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888474228] [2023-08-25 21:06:32,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888474228] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:06:32,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:06:32,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:06:32,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750407814] [2023-08-25 21:06:32,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:06:32,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:06:32,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:06:32,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:06:32,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:06:32,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 602 out of 1625 [2023-08-25 21:06:32,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 140 transitions, 477 flow. Second operand has 6 states, 6 states have (on average 609.0) internal successors, (3654), 6 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:32,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:06:32,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 602 of 1625 [2023-08-25 21:06:32,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:06:53,915 INFO L124 PetriNetUnfolderBase]: 135888/191884 cut-off events. [2023-08-25 21:06:53,915 INFO L125 PetriNetUnfolderBase]: For 137782/137830 co-relation queries the response was YES. [2023-08-25 21:06:54,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483093 conditions, 191884 events. 135888/191884 cut-off events. For 137782/137830 co-relation queries the response was YES. Maximal size of possible extension queue 1237. Compared 1198121 event pairs, 108416 based on Foata normal form. 0/189222 useless extension candidates. Maximal degree in co-relation 483076. Up to 174296 conditions per place. [2023-08-25 21:06:55,438 INFO L140 encePairwiseOnDemand]: 1619/1625 looper letters, 284 selfloop transitions, 5 changer transitions 0/295 dead transitions. [2023-08-25 21:06:55,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 295 transitions, 1549 flow [2023-08-25 21:06:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:06:55,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:06:55,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3862 transitions. [2023-08-25 21:06:55,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3961025641025641 [2023-08-25 21:06:55,443 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3862 transitions. [2023-08-25 21:06:55,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3862 transitions. [2023-08-25 21:06:55,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:06:55,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3862 transitions. [2023-08-25 21:06:55,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 643.6666666666666) internal successors, (3862), 6 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:55,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:55,454 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:55,454 INFO L175 Difference]: Start difference. First operand has 149 places, 140 transitions, 477 flow. Second operand 6 states and 3862 transitions. [2023-08-25 21:06:55,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 295 transitions, 1549 flow [2023-08-25 21:06:55,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 295 transitions, 1514 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 21:06:55,542 INFO L231 Difference]: Finished difference. Result has 149 places, 139 transitions, 478 flow [2023-08-25 21:06:55,542 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=478, PETRI_PLACES=149, PETRI_TRANSITIONS=139} [2023-08-25 21:06:55,542 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -91 predicate places. [2023-08-25 21:06:55,542 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 139 transitions, 478 flow [2023-08-25 21:06:55,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 609.0) internal successors, (3654), 6 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:55,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:06:55,543 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:06:55,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 21:06:55,543 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:06:55,544 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:06:55,544 INFO L85 PathProgramCache]: Analyzing trace with hash -384411941, now seen corresponding path program 1 times [2023-08-25 21:06:55,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:06:55,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864323157] [2023-08-25 21:06:55,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:06:55,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:06:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:06:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-08-25 21:06:56,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:06:56,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864323157] [2023-08-25 21:06:56,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864323157] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:06:56,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:06:56,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:06:56,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974122959] [2023-08-25 21:06:56,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:06:56,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:06:56,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:06:56,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:06:56,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:06:56,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 1625 [2023-08-25 21:06:56,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 139 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 608.5) internal successors, (3651), 6 states have internal predecessors, (3651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:06:56,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:06:56,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 1625 [2023-08-25 21:06:56,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:07:17,403 INFO L124 PetriNetUnfolderBase]: 135832/191766 cut-off events. [2023-08-25 21:07:17,404 INFO L125 PetriNetUnfolderBase]: For 137501/137549 co-relation queries the response was YES. [2023-08-25 21:07:18,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487204 conditions, 191766 events. 135832/191766 cut-off events. For 137501/137549 co-relation queries the response was YES. Maximal size of possible extension queue 1235. Compared 1197001 event pairs, 117024 based on Foata normal form. 0/189163 useless extension candidates. Maximal degree in co-relation 487187. Up to 187956 conditions per place. [2023-08-25 21:07:18,933 INFO L140 encePairwiseOnDemand]: 1620/1625 looper letters, 344 selfloop transitions, 4 changer transitions 4/358 dead transitions. [2023-08-25 21:07:18,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 358 transitions, 1708 flow [2023-08-25 21:07:18,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:07:18,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:07:18,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3931 transitions. [2023-08-25 21:07:18,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4031794871794872 [2023-08-25 21:07:18,938 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3931 transitions. [2023-08-25 21:07:18,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3931 transitions. [2023-08-25 21:07:18,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:07:18,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3931 transitions. [2023-08-25 21:07:18,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 655.1666666666666) internal successors, (3931), 6 states have internal predecessors, (3931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:07:18,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:07:18,950 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1625.0) internal successors, (11375), 7 states have internal predecessors, (11375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:07:18,951 INFO L175 Difference]: Start difference. First operand has 149 places, 139 transitions, 478 flow. Second operand 6 states and 3931 transitions. [2023-08-25 21:07:18,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 358 transitions, 1708 flow [2023-08-25 21:07:19,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 358 transitions, 1658 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 21:07:19,139 INFO L231 Difference]: Finished difference. Result has 148 places, 138 transitions, 474 flow [2023-08-25 21:07:19,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=474, PETRI_PLACES=148, PETRI_TRANSITIONS=138} [2023-08-25 21:07:19,140 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -92 predicate places. [2023-08-25 21:07:19,140 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 138 transitions, 474 flow [2023-08-25 21:07:19,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 608.5) internal successors, (3651), 6 states have internal predecessors, (3651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:07:19,141 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:07:19,141 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:07:19,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 21:07:19,141 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:07:19,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:07:19,141 INFO L85 PathProgramCache]: Analyzing trace with hash 481610021, now seen corresponding path program 1 times [2023-08-25 21:07:19,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:07:19,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316352153] [2023-08-25 21:07:19,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:07:19,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:07:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:07:19,313 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-25 21:07:19,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:07:19,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316352153] [2023-08-25 21:07:19,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316352153] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:07:19,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:07:19,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:07:19,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015510505] [2023-08-25 21:07:19,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:07:19,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:07:19,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:07:19,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:07:19,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:07:19,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 699 out of 1625 [2023-08-25 21:07:19,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 138 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 709.6666666666666) internal successors, (2129), 3 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:07:19,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:07:19,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 699 of 1625 [2023-08-25 21:07:19,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:07:25,095 INFO L124 PetriNetUnfolderBase]: 27135/51048 cut-off events. [2023-08-25 21:07:25,096 INFO L125 PetriNetUnfolderBase]: For 34100/34116 co-relation queries the response was YES. [2023-08-25 21:07:25,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114621 conditions, 51048 events. 27135/51048 cut-off events. For 34100/34116 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 402149 event pairs, 11683 based on Foata normal form. 340/50856 useless extension candidates. Maximal degree in co-relation 114604. Up to 19850 conditions per place. [2023-08-25 21:07:25,466 INFO L140 encePairwiseOnDemand]: 1622/1625 looper letters, 138 selfloop transitions, 2 changer transitions 2/188 dead transitions. [2023-08-25 21:07:25,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 188 transitions, 902 flow [2023-08-25 21:07:25,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:07:25,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:07:25,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2213 transitions. [2023-08-25 21:07:25,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45394871794871794 [2023-08-25 21:07:25,469 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2213 transitions. [2023-08-25 21:07:25,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2213 transitions. [2023-08-25 21:07:25,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:07:25,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2213 transitions. [2023-08-25 21:07:25,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 737.6666666666666) internal successors, (2213), 3 states have internal predecessors, (2213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:07:25,473 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:07:25,474 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1625.0) internal successors, (6500), 4 states have internal predecessors, (6500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:07:25,474 INFO L175 Difference]: Start difference. First operand has 148 places, 138 transitions, 474 flow. Second operand 3 states and 2213 transitions. [2023-08-25 21:07:25,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 188 transitions, 902 flow [2023-08-25 21:07:25,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 188 transitions, 893 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 21:07:25,489 INFO L231 Difference]: Finished difference. Result has 147 places, 137 transitions, 467 flow [2023-08-25 21:07:25,490 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1625, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=467, PETRI_PLACES=147, PETRI_TRANSITIONS=137} [2023-08-25 21:07:25,490 INFO L281 CegarLoopForPetriNet]: 240 programPoint places, -93 predicate places. [2023-08-25 21:07:25,490 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 137 transitions, 467 flow [2023-08-25 21:07:25,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 709.6666666666666) internal successors, (2129), 3 states have internal predecessors, (2129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:07:25,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:07:25,490 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:07:25,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 21:07:25,491 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err27ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 222 more)] === [2023-08-25 21:07:25,491 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:07:25,491 INFO L85 PathProgramCache]: Analyzing trace with hash -732817252, now seen corresponding path program 1 times [2023-08-25 21:07:25,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:07:25,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300748538] [2023-08-25 21:07:25,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:07:25,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:07:25,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:07:25,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-25 21:07:25,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:07:25,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300748538] [2023-08-25 21:07:25,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300748538] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:07:25,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:07:25,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:07:25,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574297013] [2023-08-25 21:07:25,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:07:25,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:07:25,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:07:25,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:07:25,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:07:25,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 1625 [2023-08-25 21:07:25,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 137 transitions, 467 flow. Second operand has 6 states, 6 states have (on average 600.5) internal successors, (3603), 6 states have internal predecessors, (3603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:07:25,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:07:25,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 1625 [2023-08-25 21:07:25,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand