./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:35:17,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:35:17,802 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:35:17,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:35:17,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:35:17,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:35:17,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:35:17,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:35:17,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:35:17,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:35:17,831 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:35:17,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:35:17,832 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:35:17,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:35:17,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:35:17,832 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:35:17,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:35:17,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:35:17,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:35:17,836 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:35:17,836 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:35:17,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:35:17,837 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:35:17,837 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:35:17,838 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:35:17,838 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:35:17,838 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:35:17,838 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:35:17,838 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:35:17,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:35:17,839 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:35:17,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:35:17,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:35:17,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:35:17,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:35:17,839 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:35:17,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:35:17,839 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:35:17,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:35:17,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:35:17,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:35:17,841 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2024-11-10 14:35:18,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:35:18,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:35:18,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:35:18,052 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:35:18,053 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:35:18,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-11-10 14:35:19,263 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:35:19,474 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:35:19,474 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-11-10 14:35:19,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06b48dda0/4fb4a25c6dc541ae96b332e3489bbd3b/FLAGebc26c9f9 [2024-11-10 14:35:19,500 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06b48dda0/4fb4a25c6dc541ae96b332e3489bbd3b [2024-11-10 14:35:19,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:35:19,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:35:19,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:35:19,506 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:35:19,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:35:19,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:35:19" (1/1) ... [2024-11-10 14:35:19,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4756ba61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:19, skipping insertion in model container [2024-11-10 14:35:19,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:35:19" (1/1) ... [2024-11-10 14:35:19,544 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:35:19,877 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:35:19,878 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:35:19,878 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:35:19,879 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:35:19,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:35:19,944 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:35:19,985 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:35:19,985 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:35:19,986 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:35:19,986 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-10 14:35:20,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:35:20,054 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:35:20,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20 WrapperNode [2024-11-10 14:35:20,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:35:20,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:35:20,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:35:20,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:35:20,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (1/1) ... [2024-11-10 14:35:20,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (1/1) ... [2024-11-10 14:35:20,104 INFO L138 Inliner]: procedures = 281, calls = 126, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 424 [2024-11-10 14:35:20,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:35:20,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:35:20,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:35:20,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:35:20,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (1/1) ... [2024-11-10 14:35:20,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (1/1) ... [2024-11-10 14:35:20,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (1/1) ... [2024-11-10 14:35:20,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (1/1) ... [2024-11-10 14:35:20,140 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (1/1) ... [2024-11-10 14:35:20,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (1/1) ... [2024-11-10 14:35:20,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (1/1) ... [2024-11-10 14:35:20,148 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (1/1) ... [2024-11-10 14:35:20,157 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:35:20,158 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:35:20,158 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:35:20,158 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:35:20,159 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (1/1) ... [2024-11-10 14:35:20,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:35:20,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:35:20,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:35:20,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:35:20,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:35:20,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-10 14:35:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:35:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-10 14:35:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:35:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:35:20,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:35:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:35:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:35:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:35:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-10 14:35:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 14:35:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 14:35:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:35:20,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:35:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:35:20,247 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:35:20,370 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:35:20,372 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:35:20,800 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-10 14:35:20,800 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-10 14:35:20,897 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:35:20,897 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:35:20,943 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:35:20,943 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:35:20,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:35:20 BoogieIcfgContainer [2024-11-10 14:35:20,944 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:35:20,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:35:20,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:35:20,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:35:20,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:35:19" (1/3) ... [2024-11-10 14:35:20,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290ac7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:35:20, skipping insertion in model container [2024-11-10 14:35:20,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:35:20" (2/3) ... [2024-11-10 14:35:20,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290ac7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:35:20, skipping insertion in model container [2024-11-10 14:35:20,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:35:20" (3/3) ... [2024-11-10 14:35:20,952 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2024-11-10 14:35:20,964 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:35:20,964 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-11-10 14:35:20,964 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:35:21,056 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 14:35:21,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 463 places, 488 transitions, 983 flow [2024-11-10 14:35:21,204 INFO L124 PetriNetUnfolderBase]: 30/522 cut-off events. [2024-11-10 14:35:21,204 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 14:35:21,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 522 events. 30/522 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1189 event pairs, 0 based on Foata normal form. 0/466 useless extension candidates. Maximal degree in co-relation 330. Up to 4 conditions per place. [2024-11-10 14:35:21,213 INFO L82 GeneralOperation]: Start removeDead. Operand has 463 places, 488 transitions, 983 flow [2024-11-10 14:35:21,239 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 463 places, 488 transitions, 983 flow [2024-11-10 14:35:21,248 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:35:21,253 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@70c2d745, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:35:21,253 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-10 14:35:21,278 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:35:21,278 INFO L124 PetriNetUnfolderBase]: 1/128 cut-off events. [2024-11-10 14:35:21,278 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:35:21,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:21,279 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:21,280 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:21,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:21,285 INFO L85 PathProgramCache]: Analyzing trace with hash 88909731, now seen corresponding path program 1 times [2024-11-10 14:35:21,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:21,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809059763] [2024-11-10 14:35:21,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:21,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:22,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:22,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:22,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809059763] [2024-11-10 14:35:22,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809059763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:22,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:22,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:35:22,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087378376] [2024-11-10 14:35:22,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:22,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:35:22,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:22,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:35:22,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:35:22,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 488 [2024-11-10 14:35:22,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 488 transitions, 983 flow. Second operand has 6 states, 6 states have (on average 367.3333333333333) internal successors, (2204), 6 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:22,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:22,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 488 [2024-11-10 14:35:22,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:23,063 INFO L124 PetriNetUnfolderBase]: 320/1722 cut-off events. [2024-11-10 14:35:23,063 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-10 14:35:23,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2420 conditions, 1722 events. 320/1722 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 10646 event pairs, 288 based on Foata normal form. 214/1801 useless extension candidates. Maximal degree in co-relation 2019. Up to 682 conditions per place. [2024-11-10 14:35:23,074 INFO L140 encePairwiseOnDemand]: 455/488 looper letters, 88 selfloop transitions, 10 changer transitions 2/463 dead transitions. [2024-11-10 14:35:23,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 463 transitions, 1129 flow [2024-11-10 14:35:23,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:35:23,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:35:23,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2317 transitions. [2024-11-10 14:35:23,095 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7913251366120219 [2024-11-10 14:35:23,096 INFO L175 Difference]: Start difference. First operand has 463 places, 488 transitions, 983 flow. Second operand 6 states and 2317 transitions. [2024-11-10 14:35:23,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 463 transitions, 1129 flow [2024-11-10 14:35:23,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 463 transitions, 1129 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:35:23,109 INFO L231 Difference]: Finished difference. Result has 464 places, 461 transitions, 949 flow [2024-11-10 14:35:23,113 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=949, PETRI_PLACES=464, PETRI_TRANSITIONS=461} [2024-11-10 14:35:23,115 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 1 predicate places. [2024-11-10 14:35:23,116 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 461 transitions, 949 flow [2024-11-10 14:35:23,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 367.3333333333333) internal successors, (2204), 6 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:23,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:23,117 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:23,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:35:23,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:23,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:23,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1685422854, now seen corresponding path program 1 times [2024-11-10 14:35:23,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:23,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82713163] [2024-11-10 14:35:23,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:23,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:23,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:23,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:23,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82713163] [2024-11-10 14:35:23,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82713163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:23,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:23,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:35:23,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375621504] [2024-11-10 14:35:23,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:23,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:35:23,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:23,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:35:23,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:35:23,936 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 488 [2024-11-10 14:35:23,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 461 transitions, 949 flow. Second operand has 6 states, 6 states have (on average 367.3333333333333) internal successors, (2204), 6 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:23,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:23,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 488 [2024-11-10 14:35:23,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:24,093 INFO L124 PetriNetUnfolderBase]: 320/1718 cut-off events. [2024-11-10 14:35:24,094 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-10 14:35:24,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2427 conditions, 1718 events. 320/1718 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 10638 event pairs, 288 based on Foata normal form. 0/1587 useless extension candidates. Maximal degree in co-relation 2251. Up to 682 conditions per place. [2024-11-10 14:35:24,100 INFO L140 encePairwiseOnDemand]: 476/488 looper letters, 88 selfloop transitions, 10 changer transitions 0/459 dead transitions. [2024-11-10 14:35:24,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 459 transitions, 1141 flow [2024-11-10 14:35:24,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:35:24,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:35:24,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2296 transitions. [2024-11-10 14:35:24,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7841530054644809 [2024-11-10 14:35:24,103 INFO L175 Difference]: Start difference. First operand has 464 places, 461 transitions, 949 flow. Second operand 6 states and 2296 transitions. [2024-11-10 14:35:24,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 459 transitions, 1141 flow [2024-11-10 14:35:24,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 459 transitions, 1121 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:35:24,109 INFO L231 Difference]: Finished difference. Result has 460 places, 459 transitions, 945 flow [2024-11-10 14:35:24,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=925, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=945, PETRI_PLACES=460, PETRI_TRANSITIONS=459} [2024-11-10 14:35:24,110 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -3 predicate places. [2024-11-10 14:35:24,110 INFO L471 AbstractCegarLoop]: Abstraction has has 460 places, 459 transitions, 945 flow [2024-11-10 14:35:24,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 367.3333333333333) internal successors, (2204), 6 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:24,112 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:24,112 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:24,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:35:24,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:24,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:24,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1445963275, now seen corresponding path program 1 times [2024-11-10 14:35:24,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:24,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665407500] [2024-11-10 14:35:24,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:24,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:24,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:24,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:24,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665407500] [2024-11-10 14:35:24,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665407500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:24,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:24,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:35:24,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409009089] [2024-11-10 14:35:24,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:24,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:35:24,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:24,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:35:24,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:35:24,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 488 [2024-11-10 14:35:24,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 459 transitions, 945 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:24,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:24,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 488 [2024-11-10 14:35:24,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:24,288 INFO L124 PetriNetUnfolderBase]: 16/641 cut-off events. [2024-11-10 14:35:24,289 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-10 14:35:24,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 641 events. 16/641 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1851 event pairs, 8 based on Foata normal form. 1/600 useless extension candidates. Maximal degree in co-relation 471. Up to 34 conditions per place. [2024-11-10 14:35:24,290 INFO L140 encePairwiseOnDemand]: 485/488 looper letters, 15 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2024-11-10 14:35:24,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 460 transitions, 981 flow [2024-11-10 14:35:24,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:35:24,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:35:24,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2024-11-10 14:35:24,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9344262295081968 [2024-11-10 14:35:24,293 INFO L175 Difference]: Start difference. First operand has 460 places, 459 transitions, 945 flow. Second operand 3 states and 1368 transitions. [2024-11-10 14:35:24,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 460 transitions, 981 flow [2024-11-10 14:35:24,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 460 transitions, 961 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:35:24,301 INFO L231 Difference]: Finished difference. Result has 458 places, 460 transitions, 937 flow [2024-11-10 14:35:24,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=925, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=937, PETRI_PLACES=458, PETRI_TRANSITIONS=460} [2024-11-10 14:35:24,302 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -5 predicate places. [2024-11-10 14:35:24,302 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 460 transitions, 937 flow [2024-11-10 14:35:24,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:24,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:24,303 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:24,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:35:24,304 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:24,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:24,304 INFO L85 PathProgramCache]: Analyzing trace with hash -95975564, now seen corresponding path program 1 times [2024-11-10 14:35:24,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:24,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969841770] [2024-11-10 14:35:24,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:24,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:24,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:24,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:24,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969841770] [2024-11-10 14:35:24,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969841770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:24,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:24,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:35:24,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24362065] [2024-11-10 14:35:24,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:24,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:35:24,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:24,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:35:24,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:35:24,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 488 [2024-11-10 14:35:24,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 460 transitions, 937 flow. Second operand has 6 states, 6 states have (on average 367.6666666666667) internal successors, (2206), 6 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:24,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:24,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 488 [2024-11-10 14:35:24,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:25,287 INFO L124 PetriNetUnfolderBase]: 321/1842 cut-off events. [2024-11-10 14:35:25,288 INFO L125 PetriNetUnfolderBase]: For 8/16 co-relation queries the response was YES. [2024-11-10 14:35:25,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2595 conditions, 1842 events. 321/1842 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11187 event pairs, 288 based on Foata normal form. 0/1707 useless extension candidates. Maximal degree in co-relation 2321. Up to 730 conditions per place. [2024-11-10 14:35:25,295 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 95 selfloop transitions, 5 changer transitions 0/459 dead transitions. [2024-11-10 14:35:25,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 459 transitions, 1135 flow [2024-11-10 14:35:25,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:35:25,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:35:25,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2291 transitions. [2024-11-10 14:35:25,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7824453551912568 [2024-11-10 14:35:25,299 INFO L175 Difference]: Start difference. First operand has 458 places, 460 transitions, 937 flow. Second operand 6 states and 2291 transitions. [2024-11-10 14:35:25,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 459 transitions, 1135 flow [2024-11-10 14:35:25,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 459 transitions, 1133 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:35:25,308 INFO L231 Difference]: Finished difference. Result has 461 places, 459 transitions, 943 flow [2024-11-10 14:35:25,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=943, PETRI_PLACES=461, PETRI_TRANSITIONS=459} [2024-11-10 14:35:25,310 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -2 predicate places. [2024-11-10 14:35:25,311 INFO L471 AbstractCegarLoop]: Abstraction has has 461 places, 459 transitions, 943 flow [2024-11-10 14:35:25,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 367.6666666666667) internal successors, (2206), 6 states have internal predecessors, (2206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:25,312 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:25,312 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:25,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 14:35:25,312 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:25,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:25,313 INFO L85 PathProgramCache]: Analyzing trace with hash -941887907, now seen corresponding path program 1 times [2024-11-10 14:35:25,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:25,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523435029] [2024-11-10 14:35:25,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:25,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:25,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:25,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523435029] [2024-11-10 14:35:25,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523435029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:25,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:25,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:35:25,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739009699] [2024-11-10 14:35:25,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:25,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:35:25,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:25,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:35:25,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:35:25,415 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 488 [2024-11-10 14:35:25,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 459 transitions, 943 flow. Second operand has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:25,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:25,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 488 [2024-11-10 14:35:25,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:25,516 INFO L124 PetriNetUnfolderBase]: 16/829 cut-off events. [2024-11-10 14:35:25,517 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-10 14:35:25,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 829 events. 16/829 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1901 event pairs, 8 based on Foata normal form. 2/783 useless extension candidates. Maximal degree in co-relation 668. Up to 38 conditions per place. [2024-11-10 14:35:25,519 INFO L140 encePairwiseOnDemand]: 485/488 looper letters, 15 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2024-11-10 14:35:25,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 460 transitions, 979 flow [2024-11-10 14:35:25,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:35:25,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:35:25,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2024-11-10 14:35:25,522 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9344262295081968 [2024-11-10 14:35:25,522 INFO L175 Difference]: Start difference. First operand has 461 places, 459 transitions, 943 flow. Second operand 3 states and 1368 transitions. [2024-11-10 14:35:25,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 460 transitions, 979 flow [2024-11-10 14:35:25,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 460 transitions, 969 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:35:25,529 INFO L231 Difference]: Finished difference. Result has 459 places, 460 transitions, 945 flow [2024-11-10 14:35:25,529 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=457, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=459, PETRI_TRANSITIONS=460} [2024-11-10 14:35:25,532 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -4 predicate places. [2024-11-10 14:35:25,533 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 460 transitions, 945 flow [2024-11-10 14:35:25,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 451.3333333333333) internal successors, (1354), 3 states have internal predecessors, (1354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:25,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:25,534 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:25,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 14:35:25,534 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:25,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:25,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1750286364, now seen corresponding path program 1 times [2024-11-10 14:35:25,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:25,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20004357] [2024-11-10 14:35:25,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:25,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:26,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:26,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20004357] [2024-11-10 14:35:26,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20004357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:26,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:26,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:35:26,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621664196] [2024-11-10 14:35:26,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:26,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:35:26,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:26,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:35:26,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:35:26,480 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 488 [2024-11-10 14:35:26,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 460 transitions, 945 flow. Second operand has 6 states, 6 states have (on average 402.5) internal successors, (2415), 6 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:26,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:26,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 488 [2024-11-10 14:35:26,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:26,681 INFO L124 PetriNetUnfolderBase]: 84/1159 cut-off events. [2024-11-10 14:35:26,681 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2024-11-10 14:35:26,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1512 conditions, 1159 events. 84/1159 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3929 event pairs, 64 based on Foata normal form. 0/1074 useless extension candidates. Maximal degree in co-relation 969. Up to 311 conditions per place. [2024-11-10 14:35:26,684 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 62 selfloop transitions, 5 changer transitions 0/459 dead transitions. [2024-11-10 14:35:26,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 459 transitions, 1077 flow [2024-11-10 14:35:26,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:35:26,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:35:26,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2456 transitions. [2024-11-10 14:35:26,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8387978142076503 [2024-11-10 14:35:26,688 INFO L175 Difference]: Start difference. First operand has 459 places, 460 transitions, 945 flow. Second operand 6 states and 2456 transitions. [2024-11-10 14:35:26,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 459 transitions, 1077 flow [2024-11-10 14:35:26,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 459 transitions, 1075 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 14:35:26,694 INFO L231 Difference]: Finished difference. Result has 462 places, 459 transitions, 951 flow [2024-11-10 14:35:26,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=941, PETRI_DIFFERENCE_MINUEND_PLACES=457, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=951, PETRI_PLACES=462, PETRI_TRANSITIONS=459} [2024-11-10 14:35:26,696 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -1 predicate places. [2024-11-10 14:35:26,696 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 459 transitions, 951 flow [2024-11-10 14:35:26,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 402.5) internal successors, (2415), 6 states have internal predecessors, (2415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:26,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:26,698 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:26,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:35:26,698 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:26,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:26,698 INFO L85 PathProgramCache]: Analyzing trace with hash -543687558, now seen corresponding path program 1 times [2024-11-10 14:35:26,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:26,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625897012] [2024-11-10 14:35:26,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:26,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:27,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:27,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625897012] [2024-11-10 14:35:27,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625897012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:27,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:27,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:35:27,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889740677] [2024-11-10 14:35:27,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:27,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:35:27,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:27,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:35:27,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:35:27,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 488 [2024-11-10 14:35:27,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 459 transitions, 951 flow. Second operand has 6 states, 6 states have (on average 370.3333333333333) internal successors, (2222), 6 states have internal predecessors, (2222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:27,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:27,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 488 [2024-11-10 14:35:27,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:27,684 INFO L124 PetriNetUnfolderBase]: 321/2024 cut-off events. [2024-11-10 14:35:27,685 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-10 14:35:27,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2881 conditions, 2024 events. 321/2024 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11436 event pairs, 288 based on Foata normal form. 0/1889 useless extension candidates. Maximal degree in co-relation 2365. Up to 796 conditions per place. [2024-11-10 14:35:27,694 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 95 selfloop transitions, 5 changer transitions 0/458 dead transitions. [2024-11-10 14:35:27,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 458 transitions, 1149 flow [2024-11-10 14:35:27,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:35:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:35:27,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2291 transitions. [2024-11-10 14:35:27,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7824453551912568 [2024-11-10 14:35:27,698 INFO L175 Difference]: Start difference. First operand has 462 places, 459 transitions, 951 flow. Second operand 6 states and 2291 transitions. [2024-11-10 14:35:27,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 458 transitions, 1149 flow [2024-11-10 14:35:27,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 458 transitions, 1139 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:35:27,706 INFO L231 Difference]: Finished difference. Result has 461 places, 458 transitions, 949 flow [2024-11-10 14:35:27,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=939, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=949, PETRI_PLACES=461, PETRI_TRANSITIONS=458} [2024-11-10 14:35:27,708 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -2 predicate places. [2024-11-10 14:35:27,708 INFO L471 AbstractCegarLoop]: Abstraction has has 461 places, 458 transitions, 949 flow [2024-11-10 14:35:27,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.3333333333333) internal successors, (2222), 6 states have internal predecessors, (2222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:27,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:27,710 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:27,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 14:35:27,710 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:27,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:27,710 INFO L85 PathProgramCache]: Analyzing trace with hash -618491036, now seen corresponding path program 1 times [2024-11-10 14:35:27,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:27,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216100657] [2024-11-10 14:35:27,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:27,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:28,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:28,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216100657] [2024-11-10 14:35:28,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216100657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:28,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:28,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:35:28,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742830567] [2024-11-10 14:35:28,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:28,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:35:28,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:28,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:35:28,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:35:28,424 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 488 [2024-11-10 14:35:28,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 458 transitions, 949 flow. Second operand has 6 states, 6 states have (on average 375.0) internal successors, (2250), 6 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:28,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:28,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 488 [2024-11-10 14:35:28,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:28,628 INFO L124 PetriNetUnfolderBase]: 321/2020 cut-off events. [2024-11-10 14:35:28,628 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-10 14:35:28,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2861 conditions, 2020 events. 321/2020 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11436 event pairs, 288 based on Foata normal form. 0/1889 useless extension candidates. Maximal degree in co-relation 2381. Up to 780 conditions per place. [2024-11-10 14:35:28,635 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 91 selfloop transitions, 5 changer transitions 0/457 dead transitions. [2024-11-10 14:35:28,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 457 transitions, 1139 flow [2024-11-10 14:35:28,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:35:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:35:28,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2311 transitions. [2024-11-10 14:35:28,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.789275956284153 [2024-11-10 14:35:28,641 INFO L175 Difference]: Start difference. First operand has 461 places, 458 transitions, 949 flow. Second operand 6 states and 2311 transitions. [2024-11-10 14:35:28,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 457 transitions, 1139 flow [2024-11-10 14:35:28,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 457 transitions, 1129 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:35:28,647 INFO L231 Difference]: Finished difference. Result has 460 places, 457 transitions, 947 flow [2024-11-10 14:35:28,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=947, PETRI_PLACES=460, PETRI_TRANSITIONS=457} [2024-11-10 14:35:28,648 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -3 predicate places. [2024-11-10 14:35:28,648 INFO L471 AbstractCegarLoop]: Abstraction has has 460 places, 457 transitions, 947 flow [2024-11-10 14:35:28,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.0) internal successors, (2250), 6 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:28,650 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:28,650 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:28,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:35:28,650 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:28,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:28,651 INFO L85 PathProgramCache]: Analyzing trace with hash -557865732, now seen corresponding path program 1 times [2024-11-10 14:35:28,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:28,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567482392] [2024-11-10 14:35:28,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:28,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:29,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:29,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:29,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567482392] [2024-11-10 14:35:29,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567482392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:29,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:29,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:35:29,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218449639] [2024-11-10 14:35:29,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:29,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:35:29,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:29,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:35:29,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:35:29,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 488 [2024-11-10 14:35:29,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 457 transitions, 947 flow. Second operand has 6 states, 6 states have (on average 375.0) internal successors, (2250), 6 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:29,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:29,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 488 [2024-11-10 14:35:29,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:29,692 INFO L124 PetriNetUnfolderBase]: 321/2016 cut-off events. [2024-11-10 14:35:29,692 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-10 14:35:29,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2857 conditions, 2016 events. 321/2016 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11350 event pairs, 288 based on Foata normal form. 0/1889 useless extension candidates. Maximal degree in co-relation 2396. Up to 780 conditions per place. [2024-11-10 14:35:29,699 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 91 selfloop transitions, 5 changer transitions 0/456 dead transitions. [2024-11-10 14:35:29,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 456 transitions, 1137 flow [2024-11-10 14:35:29,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:35:29,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:35:29,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2311 transitions. [2024-11-10 14:35:29,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.789275956284153 [2024-11-10 14:35:29,705 INFO L175 Difference]: Start difference. First operand has 460 places, 457 transitions, 947 flow. Second operand 6 states and 2311 transitions. [2024-11-10 14:35:29,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 456 transitions, 1137 flow [2024-11-10 14:35:29,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 456 transitions, 1127 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:35:29,710 INFO L231 Difference]: Finished difference. Result has 459 places, 456 transitions, 945 flow [2024-11-10 14:35:29,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=451, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=945, PETRI_PLACES=459, PETRI_TRANSITIONS=456} [2024-11-10 14:35:29,711 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -4 predicate places. [2024-11-10 14:35:29,711 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 456 transitions, 945 flow [2024-11-10 14:35:29,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.0) internal successors, (2250), 6 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:29,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:29,713 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:29,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 14:35:29,713 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:29,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:29,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1176363268, now seen corresponding path program 1 times [2024-11-10 14:35:29,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:29,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628694991] [2024-11-10 14:35:29,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:29,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:30,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:30,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:30,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628694991] [2024-11-10 14:35:30,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628694991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:30,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:30,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:35:30,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943425116] [2024-11-10 14:35:30,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:30,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:35:30,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:30,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:35:30,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:35:30,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 488 [2024-11-10 14:35:30,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 456 transitions, 945 flow. Second operand has 6 states, 6 states have (on average 371.5) internal successors, (2229), 6 states have internal predecessors, (2229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:30,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:30,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 488 [2024-11-10 14:35:30,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:30,697 INFO L124 PetriNetUnfolderBase]: 321/2012 cut-off events. [2024-11-10 14:35:30,697 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-10 14:35:30,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2873 conditions, 2012 events. 321/2012 cut-off events. For 11/19 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 11314 event pairs, 288 based on Foata normal form. 0/1889 useless extension candidates. Maximal degree in co-relation 2409. Up to 800 conditions per place. [2024-11-10 14:35:30,704 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 96 selfloop transitions, 5 changer transitions 0/455 dead transitions. [2024-11-10 14:35:30,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 455 transitions, 1145 flow [2024-11-10 14:35:30,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:35:30,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:35:30,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2286 transitions. [2024-11-10 14:35:30,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7807377049180327 [2024-11-10 14:35:30,708 INFO L175 Difference]: Start difference. First operand has 459 places, 456 transitions, 945 flow. Second operand 6 states and 2286 transitions. [2024-11-10 14:35:30,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 455 transitions, 1145 flow [2024-11-10 14:35:30,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 455 transitions, 1135 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:35:30,714 INFO L231 Difference]: Finished difference. Result has 458 places, 455 transitions, 943 flow [2024-11-10 14:35:30,715 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=943, PETRI_PLACES=458, PETRI_TRANSITIONS=455} [2024-11-10 14:35:30,715 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -5 predicate places. [2024-11-10 14:35:30,716 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 455 transitions, 943 flow [2024-11-10 14:35:30,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 371.5) internal successors, (2229), 6 states have internal predecessors, (2229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:30,717 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:30,717 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:30,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 14:35:30,717 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:30,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:30,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1495338642, now seen corresponding path program 1 times [2024-11-10 14:35:30,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:30,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038742748] [2024-11-10 14:35:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:30,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:30,869 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:30,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:30,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038742748] [2024-11-10 14:35:30,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038742748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:35:30,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249470122] [2024-11-10 14:35:30,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:30,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:35:30,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:35:30,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:35:30,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:35:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:31,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:35:31,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:35:31,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:31,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:35:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:31,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249470122] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:35:31,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:35:31,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-10 14:35:31,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199530071] [2024-11-10 14:35:31,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:35:31,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:35:31,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:31,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:35:31,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:35:31,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 488 [2024-11-10 14:35:31,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 455 transitions, 943 flow. Second operand has 10 states, 10 states have (on average 448.8) internal successors, (4488), 10 states have internal predecessors, (4488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:31,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:31,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 488 [2024-11-10 14:35:31,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:31,487 INFO L124 PetriNetUnfolderBase]: 16/997 cut-off events. [2024-11-10 14:35:31,487 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2024-11-10 14:35:31,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 997 events. 16/997 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1296 event pairs, 8 based on Foata normal form. 4/973 useless extension candidates. Maximal degree in co-relation 878. Up to 38 conditions per place. [2024-11-10 14:35:31,490 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 19 selfloop transitions, 9 changer transitions 0/463 dead transitions. [2024-11-10 14:35:31,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 463 transitions, 1017 flow [2024-11-10 14:35:31,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:35:31,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 14:35:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4053 transitions. [2024-11-10 14:35:31,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9228142076502732 [2024-11-10 14:35:31,496 INFO L175 Difference]: Start difference. First operand has 458 places, 455 transitions, 943 flow. Second operand 9 states and 4053 transitions. [2024-11-10 14:35:31,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 463 transitions, 1017 flow [2024-11-10 14:35:31,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 463 transitions, 1007 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:35:31,502 INFO L231 Difference]: Finished difference. Result has 464 places, 461 transitions, 983 flow [2024-11-10 14:35:31,502 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=983, PETRI_PLACES=464, PETRI_TRANSITIONS=461} [2024-11-10 14:35:31,503 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 1 predicate places. [2024-11-10 14:35:31,503 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 461 transitions, 983 flow [2024-11-10 14:35:31,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 448.8) internal successors, (4488), 10 states have internal predecessors, (4488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:31,504 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:31,505 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:31,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 14:35:31,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-10 14:35:31,706 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:31,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:31,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1304432626, now seen corresponding path program 2 times [2024-11-10 14:35:31,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:31,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181721464] [2024-11-10 14:35:31,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:31,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:32,037 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-10 14:35:32,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:32,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181721464] [2024-11-10 14:35:32,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181721464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:35:32,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122277338] [2024-11-10 14:35:32,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:35:32,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:35:32,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:35:32,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:35:32,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:35:32,237 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:35:32,237 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:35:32,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 14:35:32,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:35:32,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-10 14:35:32,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-10 14:35:32,310 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:35:32,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-10 14:35:32,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:35:32,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-10 14:35:32,353 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2024-11-10 14:35:32,353 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:35:32,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122277338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:32,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:35:32,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-10 14:35:32,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648414235] [2024-11-10 14:35:32,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:32,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:35:32,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:32,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:35:32,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-10 14:35:33,114 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 488 [2024-11-10 14:35:33,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 461 transitions, 983 flow. Second operand has 6 states, 6 states have (on average 405.3333333333333) internal successors, (2432), 6 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:33,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:33,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 488 [2024-11-10 14:35:33,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:33,368 INFO L124 PetriNetUnfolderBase]: 84/1330 cut-off events. [2024-11-10 14:35:33,368 INFO L125 PetriNetUnfolderBase]: For 16/20 co-relation queries the response was YES. [2024-11-10 14:35:33,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1754 conditions, 1330 events. 84/1330 cut-off events. For 16/20 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3283 event pairs, 64 based on Foata normal form. 0/1258 useless extension candidates. Maximal degree in co-relation 1092. Up to 355 conditions per place. [2024-11-10 14:35:33,371 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 62 selfloop transitions, 5 changer transitions 0/460 dead transitions. [2024-11-10 14:35:33,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 460 transitions, 1115 flow [2024-11-10 14:35:33,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:35:33,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:35:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2456 transitions. [2024-11-10 14:35:33,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8387978142076503 [2024-11-10 14:35:33,375 INFO L175 Difference]: Start difference. First operand has 464 places, 461 transitions, 983 flow. Second operand 6 states and 2456 transitions. [2024-11-10 14:35:33,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 460 transitions, 1115 flow [2024-11-10 14:35:33,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 460 transitions, 1109 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 14:35:33,380 INFO L231 Difference]: Finished difference. Result has 467 places, 460 transitions, 985 flow [2024-11-10 14:35:33,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=985, PETRI_PLACES=467, PETRI_TRANSITIONS=460} [2024-11-10 14:35:33,382 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 4 predicate places. [2024-11-10 14:35:33,382 INFO L471 AbstractCegarLoop]: Abstraction has has 467 places, 460 transitions, 985 flow [2024-11-10 14:35:33,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 405.3333333333333) internal successors, (2432), 6 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:33,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:33,383 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:33,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 14:35:33,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-10 14:35:33,584 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:33,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:33,584 INFO L85 PathProgramCache]: Analyzing trace with hash 38257377, now seen corresponding path program 1 times [2024-11-10 14:35:33,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:33,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091270028] [2024-11-10 14:35:33,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:33,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:33,837 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-10 14:35:33,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:33,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091270028] [2024-11-10 14:35:33,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091270028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:35:33,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810119861] [2024-11-10 14:35:33,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:33,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:35:33,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:35:33,840 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:35:33,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:35:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:34,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 14:35:34,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:35:34,432 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 2 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:34,432 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:35:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 2 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:34,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810119861] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:35:34,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:35:34,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-10 14:35:34,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175202651] [2024-11-10 14:35:34,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:35:34,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 14:35:34,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:34,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 14:35:34,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-10 14:35:34,823 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 488 [2024-11-10 14:35:34,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 460 transitions, 985 flow. Second operand has 19 states, 19 states have (on average 443.5263157894737) internal successors, (8427), 19 states have internal predecessors, (8427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:34,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:34,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 488 [2024-11-10 14:35:34,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:35,863 INFO L124 PetriNetUnfolderBase]: 17/2393 cut-off events. [2024-11-10 14:35:35,863 INFO L125 PetriNetUnfolderBase]: For 181/182 co-relation queries the response was YES. [2024-11-10 14:35:35,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2689 conditions, 2393 events. 17/2393 cut-off events. For 181/182 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1294 event pairs, 8 based on Foata normal form. 13/2379 useless extension candidates. Maximal degree in co-relation 2453. Up to 40 conditions per place. [2024-11-10 14:35:35,867 INFO L140 encePairwiseOnDemand]: 477/488 looper letters, 51 selfloop transitions, 68 changer transitions 0/546 dead transitions. [2024-11-10 14:35:35,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 546 transitions, 1633 flow [2024-11-10 14:35:35,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-10 14:35:35,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-11-10 14:35:35,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 27915 transitions. [2024-11-10 14:35:35,890 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9079820452771272 [2024-11-10 14:35:35,890 INFO L175 Difference]: Start difference. First operand has 467 places, 460 transitions, 985 flow. Second operand 63 states and 27915 transitions. [2024-11-10 14:35:35,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 546 transitions, 1633 flow [2024-11-10 14:35:35,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 546 transitions, 1623 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:35:35,897 INFO L231 Difference]: Finished difference. Result has 540 places, 522 transitions, 1495 flow [2024-11-10 14:35:35,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=462, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=444, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1495, PETRI_PLACES=540, PETRI_TRANSITIONS=522} [2024-11-10 14:35:35,898 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 77 predicate places. [2024-11-10 14:35:35,898 INFO L471 AbstractCegarLoop]: Abstraction has has 540 places, 522 transitions, 1495 flow [2024-11-10 14:35:35,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 443.5263157894737) internal successors, (8427), 19 states have internal predecessors, (8427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:35,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:35,900 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:35,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 14:35:36,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:35:36,101 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:36,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:36,102 INFO L85 PathProgramCache]: Analyzing trace with hash -673377052, now seen corresponding path program 2 times [2024-11-10 14:35:36,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:36,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048452069] [2024-11-10 14:35:36,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:36,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:38,168 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-10 14:35:38,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:38,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048452069] [2024-11-10 14:35:38,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048452069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:35:38,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317292904] [2024-11-10 14:35:38,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:35:38,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:35:38,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:35:38,171 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:35:38,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 14:35:38,619 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:35:38,620 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:35:38,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-10 14:35:38,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:35:38,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-10 14:35:38,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-10 14:35:38,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:35:38,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-10 14:35:38,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:35:38,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-10 14:35:38,747 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8372 trivial. 0 not checked. [2024-11-10 14:35:38,747 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:35:38,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317292904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:38,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:35:38,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-10 14:35:38,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024646540] [2024-11-10 14:35:38,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:38,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:35:38,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:38,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:35:38,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-10 14:35:39,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 488 [2024-11-10 14:35:39,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 522 transitions, 1495 flow. Second operand has 6 states, 6 states have (on average 405.3333333333333) internal successors, (2432), 6 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:39,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:39,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 488 [2024-11-10 14:35:39,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:40,399 INFO L124 PetriNetUnfolderBase]: 85/2726 cut-off events. [2024-11-10 14:35:40,400 INFO L125 PetriNetUnfolderBase]: For 499/503 co-relation queries the response was YES. [2024-11-10 14:35:40,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3856 conditions, 2726 events. 85/2726 cut-off events. For 499/503 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3258 event pairs, 64 based on Foata normal form. 0/2655 useless extension candidates. Maximal degree in co-relation 3136. Up to 783 conditions per place. [2024-11-10 14:35:40,409 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 62 selfloop transitions, 5 changer transitions 0/521 dead transitions. [2024-11-10 14:35:40,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 521 transitions, 1627 flow [2024-11-10 14:35:40,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 14:35:40,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 14:35:40,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2456 transitions. [2024-11-10 14:35:40,411 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8387978142076503 [2024-11-10 14:35:40,411 INFO L175 Difference]: Start difference. First operand has 540 places, 522 transitions, 1495 flow. Second operand 6 states and 2456 transitions. [2024-11-10 14:35:40,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 521 transitions, 1627 flow [2024-11-10 14:35:40,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 521 transitions, 1551 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-10 14:35:40,420 INFO L231 Difference]: Finished difference. Result has 537 places, 521 transitions, 1427 flow [2024-11-10 14:35:40,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=1417, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1427, PETRI_PLACES=537, PETRI_TRANSITIONS=521} [2024-11-10 14:35:40,422 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 74 predicate places. [2024-11-10 14:35:40,423 INFO L471 AbstractCegarLoop]: Abstraction has has 537 places, 521 transitions, 1427 flow [2024-11-10 14:35:40,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 405.3333333333333) internal successors, (2432), 6 states have internal predecessors, (2432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:40,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:40,424 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:40,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 14:35:40,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:35:40,624 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:40,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:40,625 INFO L85 PathProgramCache]: Analyzing trace with hash -928859278, now seen corresponding path program 1 times [2024-11-10 14:35:40,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:40,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797711869] [2024-11-10 14:35:40,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:40,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-10 14:35:42,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:42,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797711869] [2024-11-10 14:35:42,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797711869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:35:42,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639233500] [2024-11-10 14:35:42,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:42,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:35:42,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:35:42,711 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:35:42,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 14:35:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:43,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 5730 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 14:35:43,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:35:44,404 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-10 14:35:44,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:35:45,043 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-10 14:35:45,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639233500] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:35:45,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:35:45,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-10 14:35:45,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880704475] [2024-11-10 14:35:45,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:35:45,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-10 14:35:45,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:45,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-10 14:35:45,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-10 14:35:45,087 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 488 [2024-11-10 14:35:45,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 521 transitions, 1427 flow. Second operand has 34 states, 34 states have (on average 449.11764705882354) internal successors, (15270), 34 states have internal predecessors, (15270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:45,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:45,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 488 [2024-11-10 14:35:45,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:47,389 INFO L124 PetriNetUnfolderBase]: 17/4576 cut-off events. [2024-11-10 14:35:47,389 INFO L125 PetriNetUnfolderBase]: For 3874/3875 co-relation queries the response was YES. [2024-11-10 14:35:47,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5372 conditions, 4576 events. 17/4576 cut-off events. For 3874/3875 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1287 event pairs, 8 based on Foata normal form. 24/4574 useless extension candidates. Maximal degree in co-relation 5330. Up to 78 conditions per place. [2024-11-10 14:35:47,398 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 51 selfloop transitions, 135 changer transitions 0/622 dead transitions. [2024-11-10 14:35:47,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 622 transitions, 2563 flow [2024-11-10 14:35:47,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-10 14:35:47,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-10 14:35:47,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 20199 transitions. [2024-11-10 14:35:47,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9198087431693989 [2024-11-10 14:35:47,409 INFO L175 Difference]: Start difference. First operand has 537 places, 521 transitions, 1427 flow. Second operand 45 states and 20199 transitions. [2024-11-10 14:35:47,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 622 transitions, 2563 flow [2024-11-10 14:35:47,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 622 transitions, 2553 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 14:35:47,421 INFO L231 Difference]: Finished difference. Result has 585 places, 596 transitions, 2291 flow [2024-11-10 14:35:47,422 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=1417, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2291, PETRI_PLACES=585, PETRI_TRANSITIONS=596} [2024-11-10 14:35:47,422 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 122 predicate places. [2024-11-10 14:35:47,422 INFO L471 AbstractCegarLoop]: Abstraction has has 585 places, 596 transitions, 2291 flow [2024-11-10 14:35:47,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 449.11764705882354) internal successors, (15270), 34 states have internal predecessors, (15270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:47,425 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:47,426 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:35:47,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 14:35:47,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-10 14:35:47,627 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:35:47,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:47,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1785442162, now seen corresponding path program 2 times [2024-11-10 14:35:47,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:47,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281569391] [2024-11-10 14:35:47,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:47,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:55,653 INFO L134 CoverageAnalysis]: Checked inductivity of 39740 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9591 trivial. 0 not checked. [2024-11-10 14:35:55,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:55,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281569391] [2024-11-10 14:35:55,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281569391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:35:55,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91781257] [2024-11-10 14:35:55,653 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:35:55,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:35:55,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:35:55,654 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:35:55,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 14:35:56,608 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:35:56,608 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:35:56,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-10 14:35:56,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:35:56,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-10 14:35:56,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-10 14:35:56,764 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:35:56,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-11-10 14:35:56,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:35:56,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-11-10 14:35:56,840 INFO L134 CoverageAnalysis]: Checked inductivity of 39740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39740 trivial. 0 not checked. [2024-11-10 14:35:56,840 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:35:56,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91781257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:56,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:35:56,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [33] total 39 [2024-11-10 14:35:56,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501515424] [2024-11-10 14:35:56,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:56,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 14:35:56,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:56,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 14:35:56,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=1167, Unknown=0, NotChecked=0, Total=1482 [2024-11-10 14:35:57,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 488 [2024-11-10 14:35:57,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 596 transitions, 2291 flow. Second operand has 8 states, 8 states have (on average 367.625) internal successors, (2941), 8 states have internal predecessors, (2941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:57,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:57,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 488 [2024-11-10 14:35:57,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:36:01,524 INFO L124 PetriNetUnfolderBase]: 630/6922 cut-off events. [2024-11-10 14:36:01,525 INFO L125 PetriNetUnfolderBase]: For 1347/1363 co-relation queries the response was YES. [2024-11-10 14:36:01,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10433 conditions, 6922 events. 630/6922 cut-off events. For 1347/1363 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 20855 event pairs, 455 based on Foata normal form. 3/6691 useless extension candidates. Maximal degree in co-relation 6600. Up to 1624 conditions per place. [2024-11-10 14:36:01,546 INFO L140 encePairwiseOnDemand]: 477/488 looper letters, 176 selfloop transitions, 10 changer transitions 0/677 dead transitions. [2024-11-10 14:36:01,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 677 transitions, 2825 flow [2024-11-10 14:36:01,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 14:36:01,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 14:36:01,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3076 transitions. [2024-11-10 14:36:01,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7879098360655737 [2024-11-10 14:36:01,548 INFO L175 Difference]: Start difference. First operand has 585 places, 596 transitions, 2291 flow. Second operand 8 states and 3076 transitions. [2024-11-10 14:36:01,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 677 transitions, 2825 flow [2024-11-10 14:36:01,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 677 transitions, 2717 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-11-10 14:36:01,563 INFO L231 Difference]: Finished difference. Result has 579 places, 602 transitions, 2242 flow [2024-11-10 14:36:01,563 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=2183, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2242, PETRI_PLACES=579, PETRI_TRANSITIONS=602} [2024-11-10 14:36:01,564 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 116 predicate places. [2024-11-10 14:36:01,564 INFO L471 AbstractCegarLoop]: Abstraction has has 579 places, 602 transitions, 2242 flow [2024-11-10 14:36:01,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 367.625) internal successors, (2941), 8 states have internal predecessors, (2941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:36:01,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:36:01,565 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:36:01,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 14:36:01,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-10 14:36:01,767 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:36:01,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:36:01,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1405354430, now seen corresponding path program 1 times [2024-11-10 14:36:01,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:36:01,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019151681] [2024-11-10 14:36:01,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:36:01,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:36:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:36:09,141 INFO L134 CoverageAnalysis]: Checked inductivity of 39751 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9602 trivial. 0 not checked. [2024-11-10 14:36:09,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:36:09,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019151681] [2024-11-10 14:36:09,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019151681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:36:09,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944859786] [2024-11-10 14:36:09,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:36:09,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:36:09,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:36:09,144 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:36:09,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 14:36:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:36:11,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 11688 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-10 14:36:11,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:36:12,193 INFO L134 CoverageAnalysis]: Checked inductivity of 39751 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9602 trivial. 0 not checked. [2024-11-10 14:36:12,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:36:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 39751 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9602 trivial. 0 not checked. [2024-11-10 14:36:13,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944859786] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:36:13,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:36:13,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-10 14:36:13,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371301778] [2024-11-10 14:36:13,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:36:13,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-10 14:36:13,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:36:13,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-10 14:36:13,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-10 14:36:13,826 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 488 [2024-11-10 14:36:13,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 602 transitions, 2242 flow. Second operand has 63 states, 63 states have (on average 449.1111111111111) internal successors, (28294), 63 states have internal predecessors, (28294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:36:13,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:36:13,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 488 [2024-11-10 14:36:13,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:36:21,039 INFO L124 PetriNetUnfolderBase]: 25/8801 cut-off events. [2024-11-10 14:36:21,039 INFO L125 PetriNetUnfolderBase]: For 15489/15492 co-relation queries the response was YES. [2024-11-10 14:36:21,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10759 conditions, 8801 events. 25/8801 cut-off events. For 15489/15492 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2095 event pairs, 9 based on Foata normal form. 45/8809 useless extension candidates. Maximal degree in co-relation 10308. Up to 168 conditions per place. [2024-11-10 14:36:21,055 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 96 selfloop transitions, 270 changer transitions 0/808 dead transitions. [2024-11-10 14:36:21,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 808 transitions, 5160 flow [2024-11-10 14:36:21,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-11-10 14:36:21,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2024-11-10 14:36:21,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 40381 transitions. [2024-11-10 14:36:21,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9194216757741348 [2024-11-10 14:36:21,071 INFO L175 Difference]: Start difference. First operand has 579 places, 602 transitions, 2242 flow. Second operand 90 states and 40381 transitions. [2024-11-10 14:36:21,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 668 places, 808 transitions, 5160 flow [2024-11-10 14:36:21,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 808 transitions, 5153 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:36:21,097 INFO L231 Difference]: Finished difference. Result has 682 places, 740 transitions, 4227 flow [2024-11-10 14:36:21,097 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=488, PETRI_DIFFERENCE_MINUEND_FLOW=2235, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=4227, PETRI_PLACES=682, PETRI_TRANSITIONS=740} [2024-11-10 14:36:21,098 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 219 predicate places. [2024-11-10 14:36:21,098 INFO L471 AbstractCegarLoop]: Abstraction has has 682 places, 740 transitions, 4227 flow [2024-11-10 14:36:21,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 449.1111111111111) internal successors, (28294), 63 states have internal predecessors, (28294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:36:21,104 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:36:21,105 INFO L204 CegarLoopForPetriNet]: trace histogram [62, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:36:21,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 14:36:21,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:36:21,306 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-10 14:36:21,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:36:21,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2051000508, now seen corresponding path program 2 times [2024-11-10 14:36:21,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:36:21,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662134899] [2024-11-10 14:36:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:36:21,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:36:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:36:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 161356 backedges. 0 proven. 82055 refuted. 0 times theorem prover too weak. 79301 trivial. 0 not checked. [2024-11-10 14:36:32,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:36:32,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662134899] [2024-11-10 14:36:32,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662134899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:36:32,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133207582] [2024-11-10 14:36:32,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:36:32,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:36:32,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:36:32,543 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:36:32,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 14:36:34,535 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 14:36:34,535 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:36:34,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 14:36:34,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:36:34,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-10 14:36:34,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-11-10 14:36:34,681 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:36:34,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-11-10 14:36:34,702 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 14:36:34,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-11-10 14:36:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 161356 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 161352 trivial. 0 not checked. [2024-11-10 14:36:34,727 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:36:34,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133207582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:36:34,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:36:34,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-11-10 14:36:34,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203246974] [2024-11-10 14:36:34,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:36:34,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:36:34,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:36:34,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:36:34,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-10 14:36:34,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 488 [2024-11-10 14:36:34,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 682 places, 740 transitions, 4227 flow. Second operand has 6 states, 6 states have (on average 372.0) internal successors, (2232), 6 states have internal predecessors, (2232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:36:34,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:36:34,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 488 [2024-11-10 14:36:34,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand