/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 -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/pthread-ext/04_incdec_cas.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-24 18:27:31,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 18:27:31,621 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 [2023-08-24 18:27:31,626 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 18:27:31,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 18:27:31,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 18:27:31,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 18:27:31,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 18:27:31,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 18:27:31,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 18:27:31,662 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 18:27:31,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 18:27:31,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 18:27:31,663 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 18:27:31,664 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 18:27:31,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 18:27:31,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 18:27:31,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 18:27:31,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 18:27:31,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 18:27:31,665 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 18:27:31,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 18:27:31,666 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 18:27:31,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 18:27:31,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 18:27:31,667 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 18:27:31,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 18:27:31,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:27:31,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 18:27:31,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 18:27:31,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 18:27:31,669 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 18:27:31,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 18:27:31,670 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 18:27:31,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 18:27:31,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 18:27:31,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 18:27:32,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 18:27:32,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 18:27:32,011 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 18:27:32,012 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 18:27:32,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2023-08-24 18:27:33,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 18:27:33,412 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 18:27:33,412 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2023-08-24 18:27:33,426 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/becba195c/f3bde9d0e7d044ea8c32325bb52f01a6/FLAG074c6f5d9 [2023-08-24 18:27:33,442 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/becba195c/f3bde9d0e7d044ea8c32325bb52f01a6 [2023-08-24 18:27:33,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 18:27:33,448 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 18:27:33,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 18:27:33,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 18:27:33,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 18:27:33,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:33,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f253ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33, skipping insertion in model container [2023-08-24 18:27:33,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:33,505 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 18:27:33,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:27:33,845 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 18:27:33,875 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [250] [2023-08-24 18:27:33,876 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [250] [2023-08-24 18:27:33,896 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [686] [2023-08-24 18:27:33,896 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [687] [2023-08-24 18:27:33,896 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [688] [2023-08-24 18:27:33,897 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [689] [2023-08-24 18:27:33,897 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [690] [2023-08-24 18:27:33,900 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [701] [2023-08-24 18:27:33,901 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [702] [2023-08-24 18:27:33,901 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [703] [2023-08-24 18:27:33,901 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [704] [2023-08-24 18:27:33,903 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: inline unsigned [708] [2023-08-24 18:27:33,903 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [709] [2023-08-24 18:27:33,916 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [722] [2023-08-24 18:27:33,923 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: inline unsigned [726] [2023-08-24 18:27:33,923 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [727] [2023-08-24 18:27:33,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:27:33,967 INFO L206 MainTranslator]: Completed translation [2023-08-24 18:27:33,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33 WrapperNode [2023-08-24 18:27:33,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 18:27:33,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 18:27:33,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 18:27:33,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 18:27:33,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:34,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:34,039 INFO L138 Inliner]: procedures = 172, calls = 45, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 271 [2023-08-24 18:27:34,040 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 18:27:34,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 18:27:34,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 18:27:34,041 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 18:27:34,048 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:34,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:34,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:34,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:34,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:34,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:34,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:34,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:34,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 18:27:34,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 18:27:34,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 18:27:34,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 18:27:34,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (1/1) ... [2023-08-24 18:27:34,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:27:34,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:27:34,154 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) [2023-08-24 18:27:34,156 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 [2023-08-24 18:27:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 18:27:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-24 18:27:34,181 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-24 18:27:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 18:27:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 18:27:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 18:27:34,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 18:27:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 18:27:34,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 18:27:34,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 18:27:34,183 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 18:27:34,291 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 18:27:34,293 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 18:27:34,808 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 18:27:35,093 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 18:27:35,093 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-24 18:27:35,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:27:35 BoogieIcfgContainer [2023-08-24 18:27:35,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 18:27:35,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 18:27:35,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 18:27:35,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 18:27:35,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:27:33" (1/3) ... [2023-08-24 18:27:35,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6479f40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:27:35, skipping insertion in model container [2023-08-24 18:27:35,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:27:33" (2/3) ... [2023-08-24 18:27:35,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6479f40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:27:35, skipping insertion in model container [2023-08-24 18:27:35,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:27:35" (3/3) ... [2023-08-24 18:27:35,103 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2023-08-24 18:27:35,118 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 18:27:35,118 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-24 18:27:35,118 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 18:27:35,236 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:27:35,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 136 transitions, 277 flow [2023-08-24 18:27:35,321 INFO L124 PetriNetUnfolderBase]: 9/146 cut-off events. [2023-08-24 18:27:35,321 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:27:35,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 146 events. 9/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 330 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2023-08-24 18:27:35,326 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 136 transitions, 277 flow [2023-08-24 18:27:35,330 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 136 transitions, 277 flow [2023-08-24 18:27:35,333 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:27:35,341 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 136 transitions, 277 flow [2023-08-24 18:27:35,343 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 136 transitions, 277 flow [2023-08-24 18:27:35,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 136 transitions, 277 flow [2023-08-24 18:27:35,407 INFO L124 PetriNetUnfolderBase]: 9/146 cut-off events. [2023-08-24 18:27:35,408 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:27:35,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 146 events. 9/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 330 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2023-08-24 18:27:35,411 INFO L119 LiptonReduction]: Number of co-enabled transitions 2678 [2023-08-24 18:27:52,751 WARN L234 SmtUtils]: Spent 13.55s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:27:59,674 WARN L234 SmtUtils]: Spent 6.92s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:28:13,265 WARN L234 SmtUtils]: Spent 13.59s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:28:20,415 WARN L234 SmtUtils]: Spent 7.15s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:28:28,534 WARN L234 SmtUtils]: Spent 7.77s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:28:36,502 WARN L234 SmtUtils]: Spent 7.97s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:28:43,960 WARN L234 SmtUtils]: Spent 7.46s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:28:50,814 WARN L234 SmtUtils]: Spent 6.85s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:29:00,838 WARN L234 SmtUtils]: Spent 9.39s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:29:09,958 WARN L234 SmtUtils]: Spent 9.12s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:29:20,659 WARN L234 SmtUtils]: Spent 10.70s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:29:31,857 WARN L234 SmtUtils]: Spent 11.20s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:29:46,322 WARN L234 SmtUtils]: Spent 14.33s on a formula simplification. DAG size of input: 134 DAG size of output: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:29:54,725 WARN L234 SmtUtils]: Spent 8.40s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:30:11,341 WARN L234 SmtUtils]: Spent 16.61s on a formula simplification. DAG size of input: 138 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:30:19,469 WARN L234 SmtUtils]: Spent 8.13s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:30:20,805 INFO L134 LiptonReduction]: Checked pairs total: 3843 [2023-08-24 18:30:20,805 INFO L136 LiptonReduction]: Total number of compositions: 139 [2023-08-24 18:30:20,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:30:20,832 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;@70b1ebe5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:30:20,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2023-08-24 18:30:20,843 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:30:20,843 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-08-24 18:30:20,843 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:30:20,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:30:20,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-24 18:30:20,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONASSERT, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:30:20,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:30:20,850 INFO L85 PathProgramCache]: Analyzing trace with hash 942213034, now seen corresponding path program 1 times [2023-08-24 18:30:20,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:30:20,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799107355] [2023-08-24 18:30:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:30:20,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:30:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:30:21,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:30:21,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:30:21,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799107355] [2023-08-24 18:30:21,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799107355] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:30:21,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:30:21,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:30:21,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615916401] [2023-08-24 18:30:21,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:30:21,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:30:21,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:30:21,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:30:21,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:30:21,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 275 [2023-08-24 18:30:21,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 44 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:30:21,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:30:21,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 275 [2023-08-24 18:30:21,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:30:21,444 INFO L124 PetriNetUnfolderBase]: 41/88 cut-off events. [2023-08-24 18:30:21,444 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:30:21,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 88 events. 41/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 246 event pairs, 26 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 164. Up to 86 conditions per place. [2023-08-24 18:30:21,446 INFO L140 encePairwiseOnDemand]: 254/275 looper letters, 22 selfloop transitions, 0 changer transitions 0/23 dead transitions. [2023-08-24 18:30:21,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 23 transitions, 95 flow [2023-08-24 18:30:21,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:30:21,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:30:21,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 265 transitions. [2023-08-24 18:30:21,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4818181818181818 [2023-08-24 18:30:21,471 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 265 transitions. [2023-08-24 18:30:21,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 265 transitions. [2023-08-24 18:30:21,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:30:21,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 265 transitions. [2023-08-24 18:30:21,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 132.5) internal successors, (265), 2 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:30:21,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:30:21,485 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:30:21,486 INFO L175 Difference]: Start difference. First operand has 40 places, 44 transitions, 93 flow. Second operand 2 states and 265 transitions. [2023-08-24 18:30:21,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 23 transitions, 95 flow [2023-08-24 18:30:21,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 23 transitions, 95 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:30:21,490 INFO L231 Difference]: Finished difference. Result has 22 places, 23 transitions, 51 flow [2023-08-24 18:30:21,492 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=51, PETRI_PLACES=22, PETRI_TRANSITIONS=23} [2023-08-24 18:30:21,495 INFO L281 CegarLoopForPetriNet]: 40 programPoint places, -18 predicate places. [2023-08-24 18:30:21,495 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 23 transitions, 51 flow [2023-08-24 18:30:21,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:30:21,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:30:21,496 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-24 18:30:21,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 18:30:21,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONASSERT, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:30:21,497 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:30:21,497 INFO L85 PathProgramCache]: Analyzing trace with hash -856261804, now seen corresponding path program 1 times [2023-08-24 18:30:21,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:30:21,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903181760] [2023-08-24 18:30:21,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:30:21,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:30:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:30:21,539 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:30:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:30:21,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:30:21,578 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:30:21,579 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2023-08-24 18:30:21,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2023-08-24 18:30:21,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2023-08-24 18:30:21,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONASSERT (37 of 41 remaining) [2023-08-24 18:30:21,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2023-08-24 18:30:21,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2023-08-24 18:30:21,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONASSERT (34 of 41 remaining) [2023-08-24 18:30:21,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2023-08-24 18:30:21,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2023-08-24 18:30:21,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2023-08-24 18:30:21,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2023-08-24 18:30:21,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2023-08-24 18:30:21,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2023-08-24 18:30:21,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2023-08-24 18:30:21,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2023-08-24 18:30:21,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2023-08-24 18:30:21,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2023-08-24 18:30:21,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2023-08-24 18:30:21,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2023-08-24 18:30:21,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2023-08-24 18:30:21,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2023-08-24 18:30:21,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2023-08-24 18:30:21,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2023-08-24 18:30:21,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONASSERT (17 of 41 remaining) [2023-08-24 18:30:21,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2023-08-24 18:30:21,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2023-08-24 18:30:21,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONASSERT (14 of 41 remaining) [2023-08-24 18:30:21,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2023-08-24 18:30:21,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2023-08-24 18:30:21,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2023-08-24 18:30:21,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2023-08-24 18:30:21,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2023-08-24 18:30:21,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2023-08-24 18:30:21,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2023-08-24 18:30:21,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2023-08-24 18:30:21,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2023-08-24 18:30:21,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2023-08-24 18:30:21,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2023-08-24 18:30:21,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2023-08-24 18:30:21,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2023-08-24 18:30:21,586 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2023-08-24 18:30:21,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 18:30:21,587 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-24 18:30:21,589 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 18:30:21,589 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-24 18:30:21,727 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:30:21,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 240 transitions, 492 flow [2023-08-24 18:30:21,809 INFO L124 PetriNetUnfolderBase]: 17/262 cut-off events. [2023-08-24 18:30:21,810 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:30:21,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 262 events. 17/262 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1007 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 218. Up to 6 conditions per place. [2023-08-24 18:30:21,817 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 240 transitions, 492 flow [2023-08-24 18:30:21,821 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 240 transitions, 492 flow [2023-08-24 18:30:21,822 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:30:21,822 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 240 transitions, 492 flow [2023-08-24 18:30:21,822 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 240 transitions, 492 flow [2023-08-24 18:30:21,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 240 transitions, 492 flow [2023-08-24 18:30:21,869 INFO L124 PetriNetUnfolderBase]: 17/262 cut-off events. [2023-08-24 18:30:21,870 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-24 18:30:21,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 262 events. 17/262 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1007 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 218. Up to 6 conditions per place. [2023-08-24 18:30:21,885 INFO L119 LiptonReduction]: Number of co-enabled transitions 26780 [2023-08-24 18:30:37,459 WARN L234 SmtUtils]: Spent 13.42s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:30:44,036 WARN L234 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:30:56,879 WARN L234 SmtUtils]: Spent 12.84s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:31:03,942 WARN L234 SmtUtils]: Spent 7.06s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:31:18,608 WARN L234 SmtUtils]: Spent 12.83s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:31:25,281 WARN L234 SmtUtils]: Spent 6.67s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:31:38,393 WARN L234 SmtUtils]: Spent 13.11s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:31:45,507 WARN L234 SmtUtils]: Spent 7.11s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:32:03,126 WARN L234 SmtUtils]: Spent 16.58s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:32:11,575 WARN L234 SmtUtils]: Spent 8.45s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:32:27,536 WARN L234 SmtUtils]: Spent 15.96s on a formula simplification. DAG size of input: 136 DAG size of output: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:32:35,928 WARN L234 SmtUtils]: Spent 8.39s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:32:42,797 WARN L234 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:32:49,589 WARN L234 SmtUtils]: Spent 6.79s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:32:56,344 WARN L234 SmtUtils]: Spent 6.75s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:33:03,016 WARN L234 SmtUtils]: Spent 6.67s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:33:17,028 WARN L234 SmtUtils]: Spent 13.85s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:33:23,475 WARN L234 SmtUtils]: Spent 6.45s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:33:40,839 WARN L234 SmtUtils]: Spent 17.36s on a formula simplification. DAG size of input: 136 DAG size of output: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:33:49,548 WARN L234 SmtUtils]: Spent 8.71s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:33:51,045 INFO L134 LiptonReduction]: Checked pairs total: 104215 [2023-08-24 18:33:51,045 INFO L136 LiptonReduction]: Total number of compositions: 163 [2023-08-24 18:33:51,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:33:51,049 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;@70b1ebe5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:33:51,049 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-08-24 18:33:51,051 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:33:51,051 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-08-24 18:33:51,051 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:33:51,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:33:51,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-24 18:33:51,052 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONASSERT, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-24 18:33:51,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:33:51,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1224666346, now seen corresponding path program 1 times [2023-08-24 18:33:51,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:33:51,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175662116] [2023-08-24 18:33:51,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:33:51,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:33:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:33:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:33:51,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:33:51,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175662116] [2023-08-24 18:33:51,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175662116] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:33:51,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:33:51,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:33:51,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582754410] [2023-08-24 18:33:51,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:33:51,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:33:51,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:33:51,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:33:51,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:33:51,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 403 [2023-08-24 18:33:51,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 126 transitions, 264 flow. Second operand has 2 states, 2 states have (on average 195.0) internal successors, (390), 2 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:33:51,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:33:51,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 403 [2023-08-24 18:33:51,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:33:51,807 INFO L124 PetriNetUnfolderBase]: 954/2056 cut-off events. [2023-08-24 18:33:51,807 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-08-24 18:33:51,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3555 conditions, 2056 events. 954/2056 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 14527 event pairs, 644 based on Foata normal form. 124/1677 useless extension candidates. Maximal degree in co-relation 1120. Up to 1437 conditions per place. [2023-08-24 18:33:51,823 INFO L140 encePairwiseOnDemand]: 370/403 looper letters, 42 selfloop transitions, 0 changer transitions 0/93 dead transitions. [2023-08-24 18:33:51,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 93 transitions, 282 flow [2023-08-24 18:33:51,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:33:51,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:33:51,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 459 transitions. [2023-08-24 18:33:51,826 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5694789081885856 [2023-08-24 18:33:51,826 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 459 transitions. [2023-08-24 18:33:51,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 459 transitions. [2023-08-24 18:33:51,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:33:51,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 459 transitions. [2023-08-24 18:33:51,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 229.5) internal successors, (459), 2 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:33:51,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:33:51,832 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:33:51,832 INFO L175 Difference]: Start difference. First operand has 117 places, 126 transitions, 264 flow. Second operand 2 states and 459 transitions. [2023-08-24 18:33:51,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 93 transitions, 282 flow [2023-08-24 18:33:51,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 93 transitions, 280 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-24 18:33:51,835 INFO L231 Difference]: Finished difference. Result has 89 places, 93 transitions, 196 flow [2023-08-24 18:33:51,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=196, PETRI_PLACES=89, PETRI_TRANSITIONS=93} [2023-08-24 18:33:51,836 INFO L281 CegarLoopForPetriNet]: 117 programPoint places, -28 predicate places. [2023-08-24 18:33:51,836 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 93 transitions, 196 flow [2023-08-24 18:33:51,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 195.0) internal successors, (390), 2 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:33:51,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:33:51,838 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:33:51,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 18:33:51,840 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err10ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONASSERT, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-24 18:33:51,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:33:51,841 INFO L85 PathProgramCache]: Analyzing trace with hash -514831270, now seen corresponding path program 1 times [2023-08-24 18:33:51,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:33:51,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800719939] [2023-08-24 18:33:51,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:33:51,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:33:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:33:52,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:33:52,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:33:52,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800719939] [2023-08-24 18:33:52,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800719939] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:33:52,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:33:52,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 18:33:52,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924613218] [2023-08-24 18:33:52,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:33:52,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 18:33:52,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:33:52,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 18:33:52,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-24 18:33:52,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 403 [2023-08-24 18:33:52,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 93 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 139.66666666666666) internal successors, (838), 6 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:33:52,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:33:52,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 403 [2023-08-24 18:33:52,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:33:55,660 INFO L124 PetriNetUnfolderBase]: 6877/11280 cut-off events. [2023-08-24 18:33:55,661 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2023-08-24 18:33:55,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22503 conditions, 11280 events. 6877/11280 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 84668 event pairs, 2211 based on Foata normal form. 0/9132 useless extension candidates. Maximal degree in co-relation 22498. Up to 5698 conditions per place. [2023-08-24 18:33:55,747 INFO L140 encePairwiseOnDemand]: 369/403 looper letters, 346 selfloop transitions, 72 changer transitions 0/425 dead transitions. [2023-08-24 18:33:55,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 425 transitions, 1716 flow [2023-08-24 18:33:55,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-24 18:33:55,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-24 18:33:55,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1250 transitions. [2023-08-24 18:33:55,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5169561621174524 [2023-08-24 18:33:55,751 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1250 transitions. [2023-08-24 18:33:55,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1250 transitions. [2023-08-24 18:33:55,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:33:55,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1250 transitions. [2023-08-24 18:33:55,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.33333333333334) internal successors, (1250), 6 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:33:55,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 403.0) internal successors, (2821), 7 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:33:55,763 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 403.0) internal successors, (2821), 7 states have internal predecessors, (2821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:33:55,763 INFO L175 Difference]: Start difference. First operand has 89 places, 93 transitions, 196 flow. Second operand 6 states and 1250 transitions. [2023-08-24 18:33:55,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 425 transitions, 1716 flow [2023-08-24 18:33:55,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 425 transitions, 1716 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:33:55,774 INFO L231 Difference]: Finished difference. Result has 99 places, 165 transitions, 696 flow [2023-08-24 18:33:55,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=696, PETRI_PLACES=99, PETRI_TRANSITIONS=165} [2023-08-24 18:33:55,777 INFO L281 CegarLoopForPetriNet]: 117 programPoint places, -18 predicate places. [2023-08-24 18:33:55,777 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 165 transitions, 696 flow [2023-08-24 18:33:55,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.66666666666666) internal successors, (838), 6 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:33:55,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:33:55,778 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-24 18:33:55,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 18:33:55,778 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONASSERT, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-08-24 18:33:55,779 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:33:55,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1011258410, now seen corresponding path program 1 times [2023-08-24 18:33:55,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:33:55,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592150610] [2023-08-24 18:33:55,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:33:55,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:33:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:33:55,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:33:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:33:55,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:33:55,883 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:33:55,883 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2023-08-24 18:33:55,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2023-08-24 18:33:55,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2023-08-24 18:33:55,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONASSERT (57 of 61 remaining) [2023-08-24 18:33:55,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2023-08-24 18:33:55,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2023-08-24 18:33:55,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONASSERT (54 of 61 remaining) [2023-08-24 18:33:55,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2023-08-24 18:33:55,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2023-08-24 18:33:55,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2023-08-24 18:33:55,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2023-08-24 18:33:55,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2023-08-24 18:33:55,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2023-08-24 18:33:55,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2023-08-24 18:33:55,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2023-08-24 18:33:55,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2023-08-24 18:33:55,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2023-08-24 18:33:55,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2023-08-24 18:33:55,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2023-08-24 18:33:55,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2023-08-24 18:33:55,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2023-08-24 18:33:55,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2023-08-24 18:33:55,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2023-08-24 18:33:55,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONASSERT (37 of 61 remaining) [2023-08-24 18:33:55,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2023-08-24 18:33:55,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2023-08-24 18:33:55,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONASSERT (34 of 61 remaining) [2023-08-24 18:33:55,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2023-08-24 18:33:55,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2023-08-24 18:33:55,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2023-08-24 18:33:55,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2023-08-24 18:33:55,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2023-08-24 18:33:55,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2023-08-24 18:33:55,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2023-08-24 18:33:55,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2023-08-24 18:33:55,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2023-08-24 18:33:55,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2023-08-24 18:33:55,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2023-08-24 18:33:55,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2023-08-24 18:33:55,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2023-08-24 18:33:55,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2023-08-24 18:33:55,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2023-08-24 18:33:55,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2023-08-24 18:33:55,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONASSERT (17 of 61 remaining) [2023-08-24 18:33:55,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2023-08-24 18:33:55,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2023-08-24 18:33:55,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONASSERT (14 of 61 remaining) [2023-08-24 18:33:55,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2023-08-24 18:33:55,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2023-08-24 18:33:55,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2023-08-24 18:33:55,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2023-08-24 18:33:55,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2023-08-24 18:33:55,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2023-08-24 18:33:55,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2023-08-24 18:33:55,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2023-08-24 18:33:55,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2023-08-24 18:33:55,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2023-08-24 18:33:55,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2023-08-24 18:33:55,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2023-08-24 18:33:55,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2023-08-24 18:33:55,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2023-08-24 18:33:55,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 18:33:55,898 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-24 18:33:55,898 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 18:33:55,898 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-24 18:33:56,031 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:33:56,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 344 transitions, 709 flow [2023-08-24 18:33:56,107 INFO L124 PetriNetUnfolderBase]: 25/378 cut-off events. [2023-08-24 18:33:56,108 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 18:33:56,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 378 events. 25/378 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1752 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 321. Up to 8 conditions per place. [2023-08-24 18:33:56,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 329 places, 344 transitions, 709 flow [2023-08-24 18:33:56,125 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 344 transitions, 709 flow [2023-08-24 18:33:56,125 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:33:56,125 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 329 places, 344 transitions, 709 flow [2023-08-24 18:33:56,125 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 329 places, 344 transitions, 709 flow [2023-08-24 18:33:56,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 344 transitions, 709 flow [2023-08-24 18:33:56,179 INFO L124 PetriNetUnfolderBase]: 25/378 cut-off events. [2023-08-24 18:33:56,179 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-24 18:33:56,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 378 events. 25/378 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1752 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 321. Up to 8 conditions per place. [2023-08-24 18:33:56,207 INFO L119 LiptonReduction]: Number of co-enabled transitions 72306 [2023-08-24 18:34:10,809 WARN L234 SmtUtils]: Spent 12.89s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:34:18,080 WARN L234 SmtUtils]: Spent 7.27s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:34:34,448 WARN L234 SmtUtils]: Spent 16.37s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:34:42,723 WARN L234 SmtUtils]: Spent 8.27s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:34:57,859 WARN L234 SmtUtils]: Spent 14.77s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:35:05,379 WARN L234 SmtUtils]: Spent 7.52s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:35:20,383 WARN L234 SmtUtils]: Spent 15.00s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:35:28,901 WARN L234 SmtUtils]: Spent 8.52s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:35:46,746 WARN L234 SmtUtils]: Spent 14.77s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:35:53,263 WARN L234 SmtUtils]: Spent 6.51s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:36:07,362 WARN L234 SmtUtils]: Spent 14.10s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:36:14,538 WARN L234 SmtUtils]: Spent 7.17s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:36:30,432 WARN L234 SmtUtils]: Spent 15.50s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:36:38,123 WARN L234 SmtUtils]: Spent 7.69s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:36:51,906 WARN L234 SmtUtils]: Spent 13.78s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:36:59,872 WARN L234 SmtUtils]: Spent 7.96s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:37:11,412 WARN L234 SmtUtils]: Spent 6.96s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:37:17,751 WARN L234 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:37:25,812 WARN L234 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:37:33,965 WARN L234 SmtUtils]: Spent 8.15s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:37:41,746 WARN L234 SmtUtils]: Spent 7.64s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:37:49,548 WARN L234 SmtUtils]: Spent 7.80s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:37:58,093 WARN L234 SmtUtils]: Spent 8.54s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:38:06,728 WARN L234 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:38:09,141 INFO L134 LiptonReduction]: Checked pairs total: 256428 [2023-08-24 18:38:09,141 INFO L136 LiptonReduction]: Total number of compositions: 226 [2023-08-24 18:38:09,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:38:09,143 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;@70b1ebe5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:38:09,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2023-08-24 18:38:09,145 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:38:09,145 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2023-08-24 18:38:09,145 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:38:09,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:38:09,145 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-24 18:38:09,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONASSERT, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-08-24 18:38:09,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:38:09,145 INFO L85 PathProgramCache]: Analyzing trace with hash -322058358, now seen corresponding path program 1 times [2023-08-24 18:38:09,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:38:09,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095770293] [2023-08-24 18:38:09,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:38:09,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:38:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:38:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:38:09,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:38:09,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095770293] [2023-08-24 18:38:09,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095770293] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:38:09,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:38:09,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:38:09,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125733470] [2023-08-24 18:38:09,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:38:09,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:38:09,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:38:09,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:38:09,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:38:09,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 570 [2023-08-24 18:38:09,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 187 transitions, 395 flow. Second operand has 2 states, 2 states have (on average 276.0) internal successors, (552), 2 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:38:09,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:38:09,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 570 [2023-08-24 18:38:09,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:38:14,725 INFO L124 PetriNetUnfolderBase]: 24887/41283 cut-off events. [2023-08-24 18:38:14,726 INFO L125 PetriNetUnfolderBase]: For 1591/1591 co-relation queries the response was YES. [2023-08-24 18:38:14,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75020 conditions, 41283 events. 24887/41283 cut-off events. For 1591/1591 co-relation queries the response was YES. Maximal size of possible extension queue 1882. Compared 363141 event pairs, 17517 based on Foata normal form. 2948/32723 useless extension candidates. Maximal degree in co-relation 7212. Up to 32600 conditions per place. [2023-08-24 18:38:15,033 INFO L140 encePairwiseOnDemand]: 521/570 looper letters, 63 selfloop transitions, 0 changer transitions 0/138 dead transitions. [2023-08-24 18:38:15,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 138 transitions, 423 flow [2023-08-24 18:38:15,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:38:15,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:38:15,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 658 transitions. [2023-08-24 18:38:15,036 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5771929824561404 [2023-08-24 18:38:15,036 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 658 transitions. [2023-08-24 18:38:15,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 658 transitions. [2023-08-24 18:38:15,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:38:15,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 658 transitions. [2023-08-24 18:38:15,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 329.0) internal successors, (658), 2 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:38:15,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:38:15,041 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 570.0) internal successors, (1710), 3 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:38:15,041 INFO L175 Difference]: Start difference. First operand has 173 places, 187 transitions, 395 flow. Second operand 2 states and 658 transitions. [2023-08-24 18:38:15,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 138 transitions, 423 flow [2023-08-24 18:38:15,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 138 transitions, 417 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-24 18:38:15,049 INFO L231 Difference]: Finished difference. Result has 131 places, 138 transitions, 291 flow [2023-08-24 18:38:15,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=570, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=291, PETRI_PLACES=131, PETRI_TRANSITIONS=138} [2023-08-24 18:38:15,052 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -42 predicate places. [2023-08-24 18:38:15,052 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 138 transitions, 291 flow [2023-08-24 18:38:15,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 276.0) internal successors, (552), 2 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:38:15,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:38:15,053 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:38:15,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 18:38:15,053 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err10ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONASSERT, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-08-24 18:38:15,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:38:15,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2053939469, now seen corresponding path program 1 times [2023-08-24 18:38:15,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:38:15,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125275726] [2023-08-24 18:38:15,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:38:15,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:38:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:38:15,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:38:15,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:38:15,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125275726] [2023-08-24 18:38:15,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125275726] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:38:15,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:38:15,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 18:38:15,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271394691] [2023-08-24 18:38:15,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:38:15,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 18:38:15,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:38:15,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 18:38:15,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-24 18:38:15,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 570 [2023-08-24 18:38:15,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 138 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:38:15,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:38:15,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 570 [2023-08-24 18:38:15,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:39:27,145 INFO L124 PetriNetUnfolderBase]: 548471/756584 cut-off events. [2023-08-24 18:39:27,145 INFO L125 PetriNetUnfolderBase]: For 6502/6502 co-relation queries the response was YES. [2023-08-24 18:39:28,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1514256 conditions, 756584 events. 548471/756584 cut-off events. For 6502/6502 co-relation queries the response was YES. Maximal size of possible extension queue 23598. Compared 6573288 event pairs, 152300 based on Foata normal form. 0/600698 useless extension candidates. Maximal degree in co-relation 1514250. Up to 338445 conditions per place. [2023-08-24 18:39:31,707 INFO L140 encePairwiseOnDemand]: 518/570 looper letters, 519 selfloop transitions, 112 changer transitions 0/640 dead transitions. [2023-08-24 18:39:31,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 640 transitions, 2597 flow [2023-08-24 18:39:31,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-24 18:39:31,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-24 18:39:31,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1795 transitions. [2023-08-24 18:39:31,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5248538011695907 [2023-08-24 18:39:31,715 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1795 transitions. [2023-08-24 18:39:31,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1795 transitions. [2023-08-24 18:39:31,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:39:31,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1795 transitions. [2023-08-24 18:39:31,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 299.1666666666667) internal successors, (1795), 6 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:39:31,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 570.0) internal successors, (3990), 7 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:39:31,728 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 570.0) internal successors, (3990), 7 states have internal predecessors, (3990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:39:31,729 INFO L175 Difference]: Start difference. First operand has 131 places, 138 transitions, 291 flow. Second operand 6 states and 1795 transitions. [2023-08-24 18:39:31,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 640 transitions, 2597 flow [2023-08-24 18:39:31,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 640 transitions, 2597 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:39:31,748 INFO L231 Difference]: Finished difference. Result has 141 places, 250 transitions, 1067 flow [2023-08-24 18:39:31,748 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=570, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1067, PETRI_PLACES=141, PETRI_TRANSITIONS=250} [2023-08-24 18:39:31,750 INFO L281 CegarLoopForPetriNet]: 173 programPoint places, -32 predicate places. [2023-08-24 18:39:31,750 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 250 transitions, 1067 flow [2023-08-24 18:39:31,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-24 18:39:31,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:39:31,752 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-24 18:39:31,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 18:39:31,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err9ASSERT_VIOLATIONASSERT, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2023-08-24 18:39:31,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:39:31,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1473858905, now seen corresponding path program 1 times [2023-08-24 18:39:31,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:39:31,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508268297] [2023-08-24 18:39:31,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:39:31,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:39:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:39:31,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-24 18:39:31,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-24 18:39:31,786 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-24 18:39:31,786 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-24 18:39:31,786 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (80 of 81 remaining) [2023-08-24 18:39:31,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (79 of 81 remaining) [2023-08-24 18:39:31,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (78 of 81 remaining) [2023-08-24 18:39:31,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONASSERT (77 of 81 remaining) [2023-08-24 18:39:31,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (76 of 81 remaining) [2023-08-24 18:39:31,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (75 of 81 remaining) [2023-08-24 18:39:31,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONASSERT (74 of 81 remaining) [2023-08-24 18:39:31,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (73 of 81 remaining) [2023-08-24 18:39:31,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (72 of 81 remaining) [2023-08-24 18:39:31,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (71 of 81 remaining) [2023-08-24 18:39:31,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (70 of 81 remaining) [2023-08-24 18:39:31,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (69 of 81 remaining) [2023-08-24 18:39:31,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (68 of 81 remaining) [2023-08-24 18:39:31,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (67 of 81 remaining) [2023-08-24 18:39:31,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 81 remaining) [2023-08-24 18:39:31,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 81 remaining) [2023-08-24 18:39:31,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (64 of 81 remaining) [2023-08-24 18:39:31,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (63 of 81 remaining) [2023-08-24 18:39:31,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (62 of 81 remaining) [2023-08-24 18:39:31,788 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (61 of 81 remaining) [2023-08-24 18:39:31,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (60 of 81 remaining) [2023-08-24 18:39:31,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (59 of 81 remaining) [2023-08-24 18:39:31,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (58 of 81 remaining) [2023-08-24 18:39:31,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONASSERT (57 of 81 remaining) [2023-08-24 18:39:31,789 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (56 of 81 remaining) [2023-08-24 18:39:31,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (55 of 81 remaining) [2023-08-24 18:39:31,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONASSERT (54 of 81 remaining) [2023-08-24 18:39:31,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (53 of 81 remaining) [2023-08-24 18:39:31,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (52 of 81 remaining) [2023-08-24 18:39:31,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 81 remaining) [2023-08-24 18:39:31,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (50 of 81 remaining) [2023-08-24 18:39:31,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 81 remaining) [2023-08-24 18:39:31,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (48 of 81 remaining) [2023-08-24 18:39:31,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (47 of 81 remaining) [2023-08-24 18:39:31,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (46 of 81 remaining) [2023-08-24 18:39:31,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 81 remaining) [2023-08-24 18:39:31,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (44 of 81 remaining) [2023-08-24 18:39:31,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 81 remaining) [2023-08-24 18:39:31,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (42 of 81 remaining) [2023-08-24 18:39:31,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (41 of 81 remaining) [2023-08-24 18:39:31,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (40 of 81 remaining) [2023-08-24 18:39:31,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (39 of 81 remaining) [2023-08-24 18:39:31,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 81 remaining) [2023-08-24 18:39:31,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONASSERT (37 of 81 remaining) [2023-08-24 18:39:31,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (36 of 81 remaining) [2023-08-24 18:39:31,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (35 of 81 remaining) [2023-08-24 18:39:31,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONASSERT (34 of 81 remaining) [2023-08-24 18:39:31,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 81 remaining) [2023-08-24 18:39:31,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (32 of 81 remaining) [2023-08-24 18:39:31,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 81 remaining) [2023-08-24 18:39:31,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (30 of 81 remaining) [2023-08-24 18:39:31,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 81 remaining) [2023-08-24 18:39:31,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 81 remaining) [2023-08-24 18:39:31,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 81 remaining) [2023-08-24 18:39:31,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 81 remaining) [2023-08-24 18:39:31,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (25 of 81 remaining) [2023-08-24 18:39:31,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (24 of 81 remaining) [2023-08-24 18:39:31,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 81 remaining) [2023-08-24 18:39:31,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 81 remaining) [2023-08-24 18:39:31,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 81 remaining) [2023-08-24 18:39:31,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (20 of 81 remaining) [2023-08-24 18:39:31,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 81 remaining) [2023-08-24 18:39:31,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 81 remaining) [2023-08-24 18:39:31,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONASSERT (17 of 81 remaining) [2023-08-24 18:39:31,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (16 of 81 remaining) [2023-08-24 18:39:31,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (15 of 81 remaining) [2023-08-24 18:39:31,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONASSERT (14 of 81 remaining) [2023-08-24 18:39:31,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 81 remaining) [2023-08-24 18:39:31,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (12 of 81 remaining) [2023-08-24 18:39:31,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 81 remaining) [2023-08-24 18:39:31,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 81 remaining) [2023-08-24 18:39:31,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 81 remaining) [2023-08-24 18:39:31,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 81 remaining) [2023-08-24 18:39:31,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 81 remaining) [2023-08-24 18:39:31,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 81 remaining) [2023-08-24 18:39:31,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 81 remaining) [2023-08-24 18:39:31,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (4 of 81 remaining) [2023-08-24 18:39:31,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (3 of 81 remaining) [2023-08-24 18:39:31,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 81 remaining) [2023-08-24 18:39:31,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 81 remaining) [2023-08-24 18:39:31,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (0 of 81 remaining) [2023-08-24 18:39:31,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 18:39:31,797 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-24 18:39:31,798 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-24 18:39:31,798 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-24 18:39:31,934 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-24 18:39:31,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 428 places, 448 transitions, 928 flow [2023-08-24 18:39:32,281 INFO L124 PetriNetUnfolderBase]: 33/494 cut-off events. [2023-08-24 18:39:32,281 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 18:39:32,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 494 events. 33/494 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2488 event pairs, 0 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 424. Up to 10 conditions per place. [2023-08-24 18:39:32,291 INFO L82 GeneralOperation]: Start removeDead. Operand has 428 places, 448 transitions, 928 flow [2023-08-24 18:39:32,297 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 428 places, 448 transitions, 928 flow [2023-08-24 18:39:32,297 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:39:32,297 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 428 places, 448 transitions, 928 flow [2023-08-24 18:39:32,297 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 428 places, 448 transitions, 928 flow [2023-08-24 18:39:32,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 428 places, 448 transitions, 928 flow [2023-08-24 18:39:32,386 INFO L124 PetriNetUnfolderBase]: 33/494 cut-off events. [2023-08-24 18:39:32,386 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-24 18:39:32,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 494 events. 33/494 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2488 event pairs, 0 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 424. Up to 10 conditions per place. [2023-08-24 18:39:32,424 INFO L119 LiptonReduction]: Number of co-enabled transitions 139256 [2023-08-24 18:39:50,466 WARN L234 SmtUtils]: Spent 14.92s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:39:58,422 WARN L234 SmtUtils]: Spent 7.96s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:40:11,437 WARN L234 SmtUtils]: Spent 13.01s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:40:17,964 WARN L234 SmtUtils]: Spent 6.53s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:40:32,638 WARN L234 SmtUtils]: Spent 14.42s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:40:38,980 WARN L234 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:40:56,372 WARN L234 SmtUtils]: Spent 17.39s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:41:05,697 WARN L234 SmtUtils]: Spent 9.32s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:41:22,373 WARN L234 SmtUtils]: Spent 15.01s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-24 18:41:30,472 WARN L234 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Received shutdown request... [2023-08-24 18:41:31,791 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-24 18:41:31,886 WARN L266 SmtUtils]: Removed 27 from assertion stack [2023-08-24 18:41:31,886 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-08-24 18:41:31,887 INFO L158 Benchmark]: Toolchain (without parser) took 838439.19ms. Allocated memory was 354.4MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 329.5MB in the beginning and 11.2GB in the end (delta: -10.9GB). Peak memory consumption was 4.7GB. Max. memory is 16.0GB. [2023-08-24 18:41:31,887 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory is still 331.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 18:41:31,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.80ms. Allocated memory is still 354.4MB. Free memory was 329.1MB in the beginning and 308.0MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-24 18:41:31,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.96ms. Allocated memory is still 354.4MB. Free memory was 308.0MB in the beginning and 304.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-24 18:41:31,888 INFO L158 Benchmark]: Boogie Preprocessor took 64.63ms. Allocated memory is still 354.4MB. Free memory was 304.3MB in the beginning and 300.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:41:31,888 INFO L158 Benchmark]: RCFGBuilder took 989.42ms. Allocated memory is still 354.4MB. Free memory was 300.8MB in the beginning and 264.3MB in the end (delta: 36.5MB). Peak memory consumption was 39.4MB. Max. memory is 16.0GB. [2023-08-24 18:41:31,888 INFO L158 Benchmark]: TraceAbstraction took 836789.91ms. Allocated memory was 354.4MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 264.3MB in the beginning and 11.2GB in the end (delta: -10.9GB). Peak memory consumption was 4.7GB. Max. memory is 16.0GB. [2023-08-24 18:41:31,889 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory is still 331.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 517.80ms. Allocated memory is still 354.4MB. Free memory was 329.1MB in the beginning and 308.0MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 70.96ms. Allocated memory is still 354.4MB. Free memory was 308.0MB in the beginning and 304.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 64.63ms. Allocated memory is still 354.4MB. Free memory was 304.3MB in the beginning and 300.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 989.42ms. Allocated memory is still 354.4MB. Free memory was 300.8MB in the beginning and 264.3MB in the end (delta: 36.5MB). Peak memory consumption was 39.4MB. Max. memory is 16.0GB. * TraceAbstraction took 836789.91ms. Allocated memory was 354.4MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 264.3MB in the beginning and 11.2GB in the end (delta: -10.9GB). Peak memory consumption was 4.7GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 250]: Unsoundness Warning unspecified type, defaulting to int C: short [250] - GenericResultAtLocation [Line: 250]: Unsoundness Warning unspecified type, defaulting to int C: short [250] - GenericResultAtLocation [Line: 686]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [686] - GenericResultAtLocation [Line: 687]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [687] - GenericResultAtLocation [Line: 688]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [688] - GenericResultAtLocation [Line: 689]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [689] - GenericResultAtLocation [Line: 690]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [690] - GenericResultAtLocation [Line: 701]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [701] - GenericResultAtLocation [Line: 702]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [702] - GenericResultAtLocation [Line: 703]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [703] - GenericResultAtLocation [Line: 704]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [704] - GenericResultAtLocation [Line: 708]: Unsoundness Warning unspecified type, defaulting to int C: inline unsigned [708] - GenericResultAtLocation [Line: 709]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [709] - GenericResultAtLocation [Line: 722]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [722] - GenericResultAtLocation [Line: 726]: Unsoundness Warning unspecified type, defaulting to int C: inline unsigned [726] - GenericResultAtLocation [Line: 727]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [727] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 165.5s, 131 PlacesBefore, 40 PlacesAfterwards, 136 TransitionsBefore, 44 TransitionsAfterwards, 2678 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 107 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 1 ChoiceCompositions, 139 TotalNumberOfCompositions, 3843 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2734, independent: 2533, independent conditional: 0, independent unconditional: 2533, dependent: 201, dependent conditional: 0, dependent unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1381, independent: 1331, independent conditional: 0, independent unconditional: 1331, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2734, independent: 1202, independent conditional: 0, independent unconditional: 1202, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 1381, unknown conditional: 0, unknown unconditional: 1381] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 209.2s, 230 PlacesBefore, 117 PlacesAfterwards, 240 TransitionsBefore, 126 TransitionsAfterwards, 26780 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 124 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 1 ChoiceCompositions, 163 TotalNumberOfCompositions, 104215 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23961, independent: 22803, independent conditional: 0, independent unconditional: 22803, dependent: 1158, dependent conditional: 0, dependent unconditional: 1158, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11595, independent: 11402, independent conditional: 0, independent unconditional: 11402, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 23961, independent: 11401, independent conditional: 0, independent unconditional: 11401, dependent: 965, dependent conditional: 0, dependent unconditional: 965, unknown: 11595, unknown conditional: 0, unknown unconditional: 11595] , Statistics on independence cache: Total cache size (in pairs): 814, Positive cache size: 697, Positive conditional cache size: 0, Positive unconditional cache size: 697, Negative cache size: 117, Negative conditional cache size: 0, Negative unconditional cache size: 117, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 253.0s, 329 PlacesBefore, 173 PlacesAfterwards, 344 TransitionsBefore, 187 TransitionsAfterwards, 72306 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 174 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 33 ConcurrentYvCompositions, 1 ChoiceCompositions, 226 TotalNumberOfCompositions, 256428 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52561, independent: 51113, independent conditional: 0, independent unconditional: 51113, dependent: 1448, dependent conditional: 0, dependent unconditional: 1448, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 30839, independent: 30525, independent conditional: 0, independent unconditional: 30525, dependent: 314, dependent conditional: 0, dependent unconditional: 314, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 52561, independent: 20588, independent conditional: 0, independent unconditional: 20588, dependent: 1134, dependent conditional: 0, dependent unconditional: 1134, unknown: 30839, unknown conditional: 0, unknown unconditional: 30839] , Statistics on independence cache: Total cache size (in pairs): 1968, Positive cache size: 1744, Positive conditional cache size: 0, Positive unconditional cache size: 1744, Negative cache size: 224, Negative conditional cache size: 0, Negative unconditional cache size: 224, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while CegarLoopFactory was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 428 places, 448 transitions, 928 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 428 places, 448 transitions, 928 flow and 139256 co-enabled transitions pairs.,while TransFormulaUtils was doing sequential composition of 2 TransFormulas,while SimplifyDDAWithTimeout was simplifying term of DAG size 150 for 1396ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown