./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 3289d67d 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-3289d67-m [2024-11-16 23:42:00,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:42:00,806 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:42:00,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:42:00,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:42:00,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:42:00,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:42:00,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:42:00,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:42:00,846 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:42:00,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:42:00,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:42:00,848 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:42:00,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:42:00,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:42:00,849 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:42:00,849 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:42:00,849 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:42:00,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:42:00,850 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:42:00,850 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:42:00,851 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:42:00,851 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:42:00,852 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:42:00,852 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:42:00,852 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:42:00,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:42:00,853 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:42:00,853 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:42:00,853 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:42:00,854 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:42:00,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:42:00,854 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:42:00,855 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:42:00,855 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:42:00,855 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:42:00,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:42:00,856 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:42:00,856 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:42:00,856 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:42:00,857 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:42:00,858 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2024-11-16 23:42:01,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:42:01,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:42:01,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:42:01,161 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:42:01,162 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:42:01,163 INFO L431 ainManager$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 [2024-11-16 23:42:02,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:42:02,897 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:42:02,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-11-16 23:42:02,921 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e0de09d7/e6fc9a57f0e440c9a30387653e4d0910/FLAG16275a31a [2024-11-16 23:42:02,934 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e0de09d7/e6fc9a57f0e440c9a30387653e4d0910 [2024-11-16 23:42:02,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:42:02,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:42:02,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:42:02,939 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:42:02,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:42:02,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:42:02" (1/1) ... [2024-11-16 23:42:02,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a84f704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:02, skipping insertion in model container [2024-11-16 23:42:02,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:42:02" (1/1) ... [2024-11-16 23:42:03,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:42:03,486 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 23:42:03,487 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 23:42:03,488 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 23:42:03,489 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 23:42:03,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:42:03,581 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:42:03,651 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 23:42:03,652 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 23:42:03,653 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 23:42:03,654 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-16 23:42:03,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:42:03,750 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:42:03,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03 WrapperNode [2024-11-16 23:42:03,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:42:03,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:42:03,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:42:03,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:42:03,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (1/1) ... [2024-11-16 23:42:03,788 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (1/1) ... [2024-11-16 23:42:03,838 INFO L138 Inliner]: procedures = 281, calls = 126, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 424 [2024-11-16 23:42:03,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:42:03,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:42:03,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:42:03,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:42:03,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (1/1) ... [2024-11-16 23:42:03,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (1/1) ... [2024-11-16 23:42:03,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (1/1) ... [2024-11-16 23:42:03,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (1/1) ... [2024-11-16 23:42:03,901 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (1/1) ... [2024-11-16 23:42:03,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (1/1) ... [2024-11-16 23:42:03,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (1/1) ... [2024-11-16 23:42:03,916 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (1/1) ... [2024-11-16 23:42:03,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:42:03,925 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:42:03,925 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:42:03,925 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:42:03,926 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (1/1) ... [2024-11-16 23:42:03,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:42:03,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:42:03,984 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) [2024-11-16 23:42:03,986 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 [2024-11-16 23:42:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 23:42:04,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-16 23:42:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:42:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-16 23:42:04,032 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-16 23:42:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-16 23:42:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-16 23:42:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-16 23:42:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:42:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:42:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-16 23:42:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-16 23:42:04,033 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-16 23:42:04,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:42:04,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:42:04,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:42:04,037 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:42:04,191 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:42:04,193 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:42:04,709 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-16 23:42:04,709 INFO L1250 $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 [2024-11-16 23:42:04,842 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:42:04,842 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:42:04,893 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:42:04,895 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:42:04,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:42:04 BoogieIcfgContainer [2024-11-16 23:42:04,896 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:42:04,899 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:42:04,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:42:04,927 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:42:04,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:42:02" (1/3) ... [2024-11-16 23:42:04,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a760a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:42:04, skipping insertion in model container [2024-11-16 23:42:04,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:42:03" (2/3) ... [2024-11-16 23:42:04,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a760a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:42:04, skipping insertion in model container [2024-11-16 23:42:04,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:42:04" (3/3) ... [2024-11-16 23:42:04,931 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2024-11-16 23:42:04,946 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:42:04,946 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-11-16 23:42:04,946 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:42:05,049 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-16 23:42:05,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 463 places, 488 transitions, 983 flow [2024-11-16 23:42:05,268 INFO L124 PetriNetUnfolderBase]: 30/522 cut-off events. [2024-11-16 23:42:05,269 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:42:05,279 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. [2024-11-16 23:42:05,279 INFO L82 GeneralOperation]: Start removeDead. Operand has 463 places, 488 transitions, 983 flow [2024-11-16 23:42:05,290 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 463 places, 488 transitions, 983 flow [2024-11-16 23:42:05,305 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:42:05,313 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;@1183af07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:42:05,313 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-16 23:42:05,338 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:42:05,341 INFO L124 PetriNetUnfolderBase]: 1/128 cut-off events. [2024-11-16 23:42:05,341 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:42:05,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:05,342 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] [2024-11-16 23:42:05,343 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)] === [2024-11-16 23:42:05,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:05,352 INFO L85 PathProgramCache]: Analyzing trace with hash 88909731, now seen corresponding path program 1 times [2024-11-16 23:42:05,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:05,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078670382] [2024-11-16 23:42:05,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:05,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:06,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:06,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078670382] [2024-11-16 23:42:06,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078670382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:06,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:06,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:42:06,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908231698] [2024-11-16 23:42:06,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:06,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:42:06,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:06,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:42:06,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:42:07,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 488 [2024-11-16 23:42:07,371 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) [2024-11-16 23:42:07,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:07,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 488 [2024-11-16 23:42:07,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:07,739 INFO L124 PetriNetUnfolderBase]: 320/1722 cut-off events. [2024-11-16 23:42:07,740 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-16 23:42:07,747 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. [2024-11-16 23:42:07,757 INFO L140 encePairwiseOnDemand]: 455/488 looper letters, 88 selfloop transitions, 10 changer transitions 2/463 dead transitions. [2024-11-16 23:42:07,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 463 transitions, 1129 flow [2024-11-16 23:42:07,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:42:07,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:42:07,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2317 transitions. [2024-11-16 23:42:07,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7913251366120219 [2024-11-16 23:42:07,786 INFO L175 Difference]: Start difference. First operand has 463 places, 488 transitions, 983 flow. Second operand 6 states and 2317 transitions. [2024-11-16 23:42:07,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 463 transitions, 1129 flow [2024-11-16 23:42:07,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 464 places, 463 transitions, 1129 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:42:07,801 INFO L231 Difference]: Finished difference. Result has 464 places, 461 transitions, 949 flow [2024-11-16 23:42:07,804 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} [2024-11-16 23:42:07,809 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 1 predicate places. [2024-11-16 23:42:07,810 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 461 transitions, 949 flow [2024-11-16 23:42:07,812 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) [2024-11-16 23:42:07,812 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:07,812 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] [2024-11-16 23:42:07,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:42:07,813 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)] === [2024-11-16 23:42:07,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:07,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1685422854, now seen corresponding path program 1 times [2024-11-16 23:42:07,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:07,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460459006] [2024-11-16 23:42:07,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:07,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:08,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:08,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:08,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460459006] [2024-11-16 23:42:08,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460459006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:08,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:08,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:42:08,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134417558] [2024-11-16 23:42:08,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:08,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:42:08,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:08,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:42:08,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:42:08,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 488 [2024-11-16 23:42:08,925 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) [2024-11-16 23:42:08,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:08,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 488 [2024-11-16 23:42:08,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:09,215 INFO L124 PetriNetUnfolderBase]: 320/1718 cut-off events. [2024-11-16 23:42:09,215 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-16 23:42:09,219 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. [2024-11-16 23:42:09,227 INFO L140 encePairwiseOnDemand]: 476/488 looper letters, 88 selfloop transitions, 10 changer transitions 0/459 dead transitions. [2024-11-16 23:42:09,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 459 transitions, 1141 flow [2024-11-16 23:42:09,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:42:09,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:42:09,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2296 transitions. [2024-11-16 23:42:09,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7841530054644809 [2024-11-16 23:42:09,234 INFO L175 Difference]: Start difference. First operand has 464 places, 461 transitions, 949 flow. Second operand 6 states and 2296 transitions. [2024-11-16 23:42:09,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 459 transitions, 1141 flow [2024-11-16 23:42:09,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 459 transitions, 1121 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:42:09,277 INFO L231 Difference]: Finished difference. Result has 460 places, 459 transitions, 945 flow [2024-11-16 23:42:09,278 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} [2024-11-16 23:42:09,279 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -3 predicate places. [2024-11-16 23:42:09,279 INFO L471 AbstractCegarLoop]: Abstraction has has 460 places, 459 transitions, 945 flow [2024-11-16 23:42:09,281 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) [2024-11-16 23:42:09,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:09,282 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] [2024-11-16 23:42:09,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:42:09,282 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)] === [2024-11-16 23:42:09,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:09,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1445963275, now seen corresponding path program 1 times [2024-11-16 23:42:09,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:09,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112867099] [2024-11-16 23:42:09,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:09,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:09,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:09,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:09,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112867099] [2024-11-16 23:42:09,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112867099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:09,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:09,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:42:09,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717051211] [2024-11-16 23:42:09,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:09,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:42:09,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:09,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:42:09,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:42:09,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 488 [2024-11-16 23:42:09,445 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) [2024-11-16 23:42:09,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:09,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 488 [2024-11-16 23:42:09,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:09,539 INFO L124 PetriNetUnfolderBase]: 16/641 cut-off events. [2024-11-16 23:42:09,540 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-16 23:42:09,541 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. [2024-11-16 23:42:09,543 INFO L140 encePairwiseOnDemand]: 485/488 looper letters, 15 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2024-11-16 23:42:09,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 460 transitions, 981 flow [2024-11-16 23:42:09,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:42:09,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:42:09,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2024-11-16 23:42:09,547 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9344262295081968 [2024-11-16 23:42:09,547 INFO L175 Difference]: Start difference. First operand has 460 places, 459 transitions, 945 flow. Second operand 3 states and 1368 transitions. [2024-11-16 23:42:09,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 460 transitions, 981 flow [2024-11-16 23:42:09,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 460 transitions, 961 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:42:09,558 INFO L231 Difference]: Finished difference. Result has 458 places, 460 transitions, 937 flow [2024-11-16 23:42:09,559 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} [2024-11-16 23:42:09,560 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -5 predicate places. [2024-11-16 23:42:09,560 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 460 transitions, 937 flow [2024-11-16 23:42:09,561 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) [2024-11-16 23:42:09,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:09,562 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] [2024-11-16 23:42:09,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:42:09,562 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)] === [2024-11-16 23:42:09,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:09,563 INFO L85 PathProgramCache]: Analyzing trace with hash -95975564, now seen corresponding path program 1 times [2024-11-16 23:42:09,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:09,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108579617] [2024-11-16 23:42:09,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:09,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:10,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:10,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108579617] [2024-11-16 23:42:10,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108579617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:10,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:10,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:42:10,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874132205] [2024-11-16 23:42:10,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:10,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:42:10,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:10,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:42:10,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:42:10,642 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 488 [2024-11-16 23:42:10,645 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) [2024-11-16 23:42:10,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:10,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 488 [2024-11-16 23:42:10,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:11,131 INFO L124 PetriNetUnfolderBase]: 321/1842 cut-off events. [2024-11-16 23:42:11,132 INFO L125 PetriNetUnfolderBase]: For 8/16 co-relation queries the response was YES. [2024-11-16 23:42:11,135 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. [2024-11-16 23:42:11,140 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 95 selfloop transitions, 5 changer transitions 0/459 dead transitions. [2024-11-16 23:42:11,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 459 transitions, 1135 flow [2024-11-16 23:42:11,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:42:11,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:42:11,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2291 transitions. [2024-11-16 23:42:11,147 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7824453551912568 [2024-11-16 23:42:11,147 INFO L175 Difference]: Start difference. First operand has 458 places, 460 transitions, 937 flow. Second operand 6 states and 2291 transitions. [2024-11-16 23:42:11,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 459 transitions, 1135 flow [2024-11-16 23:42:11,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 459 transitions, 1133 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:42:11,156 INFO L231 Difference]: Finished difference. Result has 461 places, 459 transitions, 943 flow [2024-11-16 23:42:11,157 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} [2024-11-16 23:42:11,158 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -2 predicate places. [2024-11-16 23:42:11,158 INFO L471 AbstractCegarLoop]: Abstraction has has 461 places, 459 transitions, 943 flow [2024-11-16 23:42:11,160 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) [2024-11-16 23:42:11,160 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:11,160 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] [2024-11-16 23:42:11,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:42:11,161 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)] === [2024-11-16 23:42:11,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:11,162 INFO L85 PathProgramCache]: Analyzing trace with hash -941887907, now seen corresponding path program 1 times [2024-11-16 23:42:11,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:11,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620994640] [2024-11-16 23:42:11,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:11,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:11,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:11,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620994640] [2024-11-16 23:42:11,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620994640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:11,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:11,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:42:11,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719469359] [2024-11-16 23:42:11,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:11,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:42:11,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:11,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:42:11,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:42:11,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 450 out of 488 [2024-11-16 23:42:11,265 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) [2024-11-16 23:42:11,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:11,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 450 of 488 [2024-11-16 23:42:11,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:11,380 INFO L124 PetriNetUnfolderBase]: 16/829 cut-off events. [2024-11-16 23:42:11,381 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-11-16 23:42:11,383 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. [2024-11-16 23:42:11,385 INFO L140 encePairwiseOnDemand]: 485/488 looper letters, 15 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2024-11-16 23:42:11,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 460 transitions, 979 flow [2024-11-16 23:42:11,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:42:11,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:42:11,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2024-11-16 23:42:11,389 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9344262295081968 [2024-11-16 23:42:11,389 INFO L175 Difference]: Start difference. First operand has 461 places, 459 transitions, 943 flow. Second operand 3 states and 1368 transitions. [2024-11-16 23:42:11,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 460 transitions, 979 flow [2024-11-16 23:42:11,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 460 transitions, 969 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:42:11,399 INFO L231 Difference]: Finished difference. Result has 459 places, 460 transitions, 945 flow [2024-11-16 23:42:11,400 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} [2024-11-16 23:42:11,405 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -4 predicate places. [2024-11-16 23:42:11,406 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 460 transitions, 945 flow [2024-11-16 23:42:11,407 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) [2024-11-16 23:42:11,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:11,407 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] [2024-11-16 23:42:11,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:42:11,407 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)] === [2024-11-16 23:42:11,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:11,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1750286364, now seen corresponding path program 1 times [2024-11-16 23:42:11,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:11,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294695776] [2024-11-16 23:42:11,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:11,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:12,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:12,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:12,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294695776] [2024-11-16 23:42:12,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294695776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:12,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:12,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:42:12,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879991552] [2024-11-16 23:42:12,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:12,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:42:12,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:12,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:42:12,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:42:12,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 488 [2024-11-16 23:42:12,728 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) [2024-11-16 23:42:12,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:12,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 488 [2024-11-16 23:42:12,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:13,035 INFO L124 PetriNetUnfolderBase]: 84/1159 cut-off events. [2024-11-16 23:42:13,035 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2024-11-16 23:42:13,037 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. [2024-11-16 23:42:13,040 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 62 selfloop transitions, 5 changer transitions 0/459 dead transitions. [2024-11-16 23:42:13,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 459 transitions, 1077 flow [2024-11-16 23:42:13,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:42:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:42:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2456 transitions. [2024-11-16 23:42:13,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8387978142076503 [2024-11-16 23:42:13,045 INFO L175 Difference]: Start difference. First operand has 459 places, 460 transitions, 945 flow. Second operand 6 states and 2456 transitions. [2024-11-16 23:42:13,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 459 transitions, 1077 flow [2024-11-16 23:42:13,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 459 transitions, 1075 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 23:42:13,053 INFO L231 Difference]: Finished difference. Result has 462 places, 459 transitions, 951 flow [2024-11-16 23:42:13,053 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} [2024-11-16 23:42:13,054 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -1 predicate places. [2024-11-16 23:42:13,054 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 459 transitions, 951 flow [2024-11-16 23:42:13,056 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) [2024-11-16 23:42:13,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:13,056 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] [2024-11-16 23:42:13,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:42:13,057 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)] === [2024-11-16 23:42:13,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:13,057 INFO L85 PathProgramCache]: Analyzing trace with hash -543687558, now seen corresponding path program 1 times [2024-11-16 23:42:13,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:13,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531262793] [2024-11-16 23:42:13,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:13,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:13,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:13,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:13,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531262793] [2024-11-16 23:42:13,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531262793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:13,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:13,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:42:13,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014471849] [2024-11-16 23:42:13,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:13,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:42:13,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:13,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:42:13,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:42:14,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 365 out of 488 [2024-11-16 23:42:14,046 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) [2024-11-16 23:42:14,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:14,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 365 of 488 [2024-11-16 23:42:14,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:14,451 INFO L124 PetriNetUnfolderBase]: 321/2024 cut-off events. [2024-11-16 23:42:14,451 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-16 23:42:14,455 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. [2024-11-16 23:42:14,461 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 95 selfloop transitions, 5 changer transitions 0/458 dead transitions. [2024-11-16 23:42:14,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 458 transitions, 1149 flow [2024-11-16 23:42:14,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:42:14,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:42:14,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2291 transitions. [2024-11-16 23:42:14,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7824453551912568 [2024-11-16 23:42:14,468 INFO L175 Difference]: Start difference. First operand has 462 places, 459 transitions, 951 flow. Second operand 6 states and 2291 transitions. [2024-11-16 23:42:14,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 458 transitions, 1149 flow [2024-11-16 23:42:14,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 458 transitions, 1139 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:42:14,478 INFO L231 Difference]: Finished difference. Result has 461 places, 458 transitions, 949 flow [2024-11-16 23:42:14,479 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} [2024-11-16 23:42:14,480 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -2 predicate places. [2024-11-16 23:42:14,480 INFO L471 AbstractCegarLoop]: Abstraction has has 461 places, 458 transitions, 949 flow [2024-11-16 23:42:14,481 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) [2024-11-16 23:42:14,482 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:14,482 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] [2024-11-16 23:42:14,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:42:14,483 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)] === [2024-11-16 23:42:14,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:14,484 INFO L85 PathProgramCache]: Analyzing trace with hash -618491036, now seen corresponding path program 1 times [2024-11-16 23:42:14,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:14,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854722574] [2024-11-16 23:42:14,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:14,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:15,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:15,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:15,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854722574] [2024-11-16 23:42:15,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854722574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:15,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:15,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:42:15,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61380314] [2024-11-16 23:42:15,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:15,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:42:15,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:15,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:42:15,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:42:15,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 488 [2024-11-16 23:42:15,484 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) [2024-11-16 23:42:15,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:15,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 488 [2024-11-16 23:42:15,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:15,771 INFO L124 PetriNetUnfolderBase]: 321/2020 cut-off events. [2024-11-16 23:42:15,772 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-16 23:42:15,775 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. [2024-11-16 23:42:15,782 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 91 selfloop transitions, 5 changer transitions 0/457 dead transitions. [2024-11-16 23:42:15,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 457 transitions, 1139 flow [2024-11-16 23:42:15,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:42:15,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:42:15,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2311 transitions. [2024-11-16 23:42:15,787 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.789275956284153 [2024-11-16 23:42:15,787 INFO L175 Difference]: Start difference. First operand has 461 places, 458 transitions, 949 flow. Second operand 6 states and 2311 transitions. [2024-11-16 23:42:15,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 457 transitions, 1139 flow [2024-11-16 23:42:15,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 457 transitions, 1129 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:42:15,796 INFO L231 Difference]: Finished difference. Result has 460 places, 457 transitions, 947 flow [2024-11-16 23:42:15,797 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} [2024-11-16 23:42:15,798 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -3 predicate places. [2024-11-16 23:42:15,798 INFO L471 AbstractCegarLoop]: Abstraction has has 460 places, 457 transitions, 947 flow [2024-11-16 23:42:15,800 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) [2024-11-16 23:42:15,800 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:15,800 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] [2024-11-16 23:42:15,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:42:15,801 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)] === [2024-11-16 23:42:15,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:15,801 INFO L85 PathProgramCache]: Analyzing trace with hash -557865732, now seen corresponding path program 1 times [2024-11-16 23:42:15,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:15,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890309764] [2024-11-16 23:42:15,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:16,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890309764] [2024-11-16 23:42:16,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890309764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:16,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:16,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:42:16,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153805248] [2024-11-16 23:42:16,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:16,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:42:16,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:16,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:42:16,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:42:16,966 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 488 [2024-11-16 23:42:16,968 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) [2024-11-16 23:42:16,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:16,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 488 [2024-11-16 23:42:16,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:17,389 INFO L124 PetriNetUnfolderBase]: 321/2016 cut-off events. [2024-11-16 23:42:17,390 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-11-16 23:42:17,393 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. [2024-11-16 23:42:17,401 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 91 selfloop transitions, 5 changer transitions 0/456 dead transitions. [2024-11-16 23:42:17,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 464 places, 456 transitions, 1137 flow [2024-11-16 23:42:17,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:42:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:42:17,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2311 transitions. [2024-11-16 23:42:17,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.789275956284153 [2024-11-16 23:42:17,407 INFO L175 Difference]: Start difference. First operand has 460 places, 457 transitions, 947 flow. Second operand 6 states and 2311 transitions. [2024-11-16 23:42:17,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 464 places, 456 transitions, 1137 flow [2024-11-16 23:42:17,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 456 transitions, 1127 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:42:17,415 INFO L231 Difference]: Finished difference. Result has 459 places, 456 transitions, 945 flow [2024-11-16 23:42:17,416 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} [2024-11-16 23:42:17,417 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -4 predicate places. [2024-11-16 23:42:17,417 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 456 transitions, 945 flow [2024-11-16 23:42:17,419 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) [2024-11-16 23:42:17,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:17,419 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] [2024-11-16 23:42:17,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:42:17,420 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)] === [2024-11-16 23:42:17,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:17,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1176363268, now seen corresponding path program 1 times [2024-11-16 23:42:17,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:17,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870014422] [2024-11-16 23:42:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:17,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:18,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:18,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:18,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870014422] [2024-11-16 23:42:18,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870014422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:18,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:42:18,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:42:18,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002783154] [2024-11-16 23:42:18,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:18,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:42:18,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:18,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:42:18,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:42:18,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 364 out of 488 [2024-11-16 23:42:18,582 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) [2024-11-16 23:42:18,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:18,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 364 of 488 [2024-11-16 23:42:18,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:18,945 INFO L124 PetriNetUnfolderBase]: 321/2012 cut-off events. [2024-11-16 23:42:18,945 INFO L125 PetriNetUnfolderBase]: For 11/19 co-relation queries the response was YES. [2024-11-16 23:42:18,948 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. [2024-11-16 23:42:18,953 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 96 selfloop transitions, 5 changer transitions 0/455 dead transitions. [2024-11-16 23:42:18,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 455 transitions, 1145 flow [2024-11-16 23:42:18,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:42:18,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:42:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2286 transitions. [2024-11-16 23:42:18,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7807377049180327 [2024-11-16 23:42:18,960 INFO L175 Difference]: Start difference. First operand has 459 places, 456 transitions, 945 flow. Second operand 6 states and 2286 transitions. [2024-11-16 23:42:18,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 455 transitions, 1145 flow [2024-11-16 23:42:18,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 455 transitions, 1135 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:42:18,968 INFO L231 Difference]: Finished difference. Result has 458 places, 455 transitions, 943 flow [2024-11-16 23:42:18,970 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} [2024-11-16 23:42:18,971 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, -5 predicate places. [2024-11-16 23:42:18,971 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 455 transitions, 943 flow [2024-11-16 23:42:18,973 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) [2024-11-16 23:42:18,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:18,973 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] [2024-11-16 23:42:18,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:42:18,973 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)] === [2024-11-16 23:42:18,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:18,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1495338642, now seen corresponding path program 1 times [2024-11-16 23:42:18,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:18,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001144349] [2024-11-16 23:42:18,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:18,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:19,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:19,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:19,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001144349] [2024-11-16 23:42:19,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001144349] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:42:19,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692684379] [2024-11-16 23:42:19,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:19,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:42:19,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:42:19,239 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) [2024-11-16 23:42:19,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:42:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:19,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 23:42:19,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:42:19,676 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:19,677 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:42:19,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:19,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692684379] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:42:19,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:42:19,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-16 23:42:19,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457980959] [2024-11-16 23:42:19,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:42:19,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 23:42:19,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:19,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 23:42:19,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 23:42:19,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 488 [2024-11-16 23:42:19,860 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) [2024-11-16 23:42:19,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:19,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 488 [2024-11-16 23:42:19,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:20,095 INFO L124 PetriNetUnfolderBase]: 16/997 cut-off events. [2024-11-16 23:42:20,095 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2024-11-16 23:42:20,097 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. [2024-11-16 23:42:20,099 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 19 selfloop transitions, 9 changer transitions 0/463 dead transitions. [2024-11-16 23:42:20,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 463 transitions, 1017 flow [2024-11-16 23:42:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 23:42:20,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 23:42:20,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4053 transitions. [2024-11-16 23:42:20,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9228142076502732 [2024-11-16 23:42:20,107 INFO L175 Difference]: Start difference. First operand has 458 places, 455 transitions, 943 flow. Second operand 9 states and 4053 transitions. [2024-11-16 23:42:20,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 463 transitions, 1017 flow [2024-11-16 23:42:20,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 461 places, 463 transitions, 1007 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:42:20,116 INFO L231 Difference]: Finished difference. Result has 464 places, 461 transitions, 983 flow [2024-11-16 23:42:20,117 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} [2024-11-16 23:42:20,117 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 1 predicate places. [2024-11-16 23:42:20,117 INFO L471 AbstractCegarLoop]: Abstraction has has 464 places, 461 transitions, 983 flow [2024-11-16 23:42:20,119 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) [2024-11-16 23:42:20,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:20,120 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] [2024-11-16 23:42:20,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 23:42:20,320 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 [2024-11-16 23:42:20,321 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)] === [2024-11-16 23:42:20,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:20,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1304432626, now seen corresponding path program 2 times [2024-11-16 23:42:20,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:20,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416476878] [2024-11-16 23:42:20,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:20,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:20,776 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-16 23:42:20,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:20,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416476878] [2024-11-16 23:42:20,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416476878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:42:20,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434055952] [2024-11-16 23:42:20,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:42:20,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:42:20,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:42:20,779 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) [2024-11-16 23:42:20,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 23:42:21,059 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-16 23:42:21,059 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:42:21,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-16 23:42:21,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:42:21,114 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 [2024-11-16 23:42:21,131 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 [2024-11-16 23:42:21,163 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:42:21,163 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 [2024-11-16 23:42:21,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:42:21,200 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 [2024-11-16 23:42:21,231 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2024-11-16 23:42:21,232 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:42:21,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434055952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:21,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:42:21,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-16 23:42:21,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066143317] [2024-11-16 23:42:21,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:21,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:42:21,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:21,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:42:21,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:42:22,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 488 [2024-11-16 23:42:22,285 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) [2024-11-16 23:42:22,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:22,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 488 [2024-11-16 23:42:22,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:22,634 INFO L124 PetriNetUnfolderBase]: 84/1330 cut-off events. [2024-11-16 23:42:22,634 INFO L125 PetriNetUnfolderBase]: For 16/20 co-relation queries the response was YES. [2024-11-16 23:42:22,636 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. [2024-11-16 23:42:22,639 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 62 selfloop transitions, 5 changer transitions 0/460 dead transitions. [2024-11-16 23:42:22,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 468 places, 460 transitions, 1115 flow [2024-11-16 23:42:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:42:22,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:42:22,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2456 transitions. [2024-11-16 23:42:22,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8387978142076503 [2024-11-16 23:42:22,644 INFO L175 Difference]: Start difference. First operand has 464 places, 461 transitions, 983 flow. Second operand 6 states and 2456 transitions. [2024-11-16 23:42:22,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 468 places, 460 transitions, 1115 flow [2024-11-16 23:42:22,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 460 transitions, 1109 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-16 23:42:22,653 INFO L231 Difference]: Finished difference. Result has 467 places, 460 transitions, 985 flow [2024-11-16 23:42:22,654 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} [2024-11-16 23:42:22,655 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 4 predicate places. [2024-11-16 23:42:22,655 INFO L471 AbstractCegarLoop]: Abstraction has has 467 places, 460 transitions, 985 flow [2024-11-16 23:42:22,656 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) [2024-11-16 23:42:22,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:22,657 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] [2024-11-16 23:42:22,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 23:42:22,861 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 [2024-11-16 23:42:22,862 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)] === [2024-11-16 23:42:22,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:22,862 INFO L85 PathProgramCache]: Analyzing trace with hash 38257377, now seen corresponding path program 1 times [2024-11-16 23:42:22,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:22,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570641005] [2024-11-16 23:42:22,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:22,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:23,307 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-16 23:42:23,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:23,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570641005] [2024-11-16 23:42:23,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570641005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:42:23,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250533123] [2024-11-16 23:42:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:23,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:42:23,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:42:23,312 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) [2024-11-16 23:42:23,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 23:42:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:23,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-16 23:42:23,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:42:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 2 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:24,123 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:42:24,507 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 2 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:42:24,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250533123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:42:24,508 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:42:24,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-16 23:42:24,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830251992] [2024-11-16 23:42:24,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:42:24,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 23:42:24,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:24,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 23:42:24,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-16 23:42:24,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 488 [2024-11-16 23:42:24,602 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) [2024-11-16 23:42:24,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:24,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 488 [2024-11-16 23:42:24,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:26,261 INFO L124 PetriNetUnfolderBase]: 17/2393 cut-off events. [2024-11-16 23:42:26,262 INFO L125 PetriNetUnfolderBase]: For 181/182 co-relation queries the response was YES. [2024-11-16 23:42:26,263 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. [2024-11-16 23:42:26,267 INFO L140 encePairwiseOnDemand]: 477/488 looper letters, 51 selfloop transitions, 68 changer transitions 0/546 dead transitions. [2024-11-16 23:42:26,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 546 transitions, 1633 flow [2024-11-16 23:42:26,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-16 23:42:26,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-11-16 23:42:26,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 27915 transitions. [2024-11-16 23:42:26,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9079820452771272 [2024-11-16 23:42:26,311 INFO L175 Difference]: Start difference. First operand has 467 places, 460 transitions, 985 flow. Second operand 63 states and 27915 transitions. [2024-11-16 23:42:26,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 546 transitions, 1633 flow [2024-11-16 23:42:26,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 546 transitions, 1623 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:42:26,321 INFO L231 Difference]: Finished difference. Result has 540 places, 522 transitions, 1495 flow [2024-11-16 23:42:26,322 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} [2024-11-16 23:42:26,323 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 77 predicate places. [2024-11-16 23:42:26,323 INFO L471 AbstractCegarLoop]: Abstraction has has 540 places, 522 transitions, 1495 flow [2024-11-16 23:42:26,330 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) [2024-11-16 23:42:26,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:26,331 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] [2024-11-16 23:42:26,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 23:42:26,531 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 [2024-11-16 23:42:26,533 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)] === [2024-11-16 23:42:26,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:26,533 INFO L85 PathProgramCache]: Analyzing trace with hash -673377052, now seen corresponding path program 2 times [2024-11-16 23:42:26,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:26,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949005306] [2024-11-16 23:42:26,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:26,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:29,488 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-16 23:42:29,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:29,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949005306] [2024-11-16 23:42:29,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949005306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:42:29,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245800993] [2024-11-16 23:42:29,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:42:29,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:42:29,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:42:29,492 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) [2024-11-16 23:42:29,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 23:42:30,254 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-16 23:42:30,254 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:42:30,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-16 23:42:30,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:42:30,384 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 [2024-11-16 23:42:30,409 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 [2024-11-16 23:42:30,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:42:30,446 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 [2024-11-16 23:42:30,486 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:42:30,486 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 [2024-11-16 23:42:30,522 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8372 trivial. 0 not checked. [2024-11-16 23:42:30,522 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:42:30,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245800993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:30,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:42:30,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-16 23:42:30,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908215701] [2024-11-16 23:42:30,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:30,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 23:42:30,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:30,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 23:42:30,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-16 23:42:31,398 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 488 [2024-11-16 23:42:31,399 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) [2024-11-16 23:42:31,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:31,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 488 [2024-11-16 23:42:31,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:32,141 INFO L124 PetriNetUnfolderBase]: 85/2726 cut-off events. [2024-11-16 23:42:32,141 INFO L125 PetriNetUnfolderBase]: For 499/503 co-relation queries the response was YES. [2024-11-16 23:42:32,145 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. [2024-11-16 23:42:32,151 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 62 selfloop transitions, 5 changer transitions 0/521 dead transitions. [2024-11-16 23:42:32,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 521 transitions, 1627 flow [2024-11-16 23:42:32,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:42:32,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 23:42:32,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2456 transitions. [2024-11-16 23:42:32,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8387978142076503 [2024-11-16 23:42:32,154 INFO L175 Difference]: Start difference. First operand has 540 places, 522 transitions, 1495 flow. Second operand 6 states and 2456 transitions. [2024-11-16 23:42:32,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 521 transitions, 1627 flow [2024-11-16 23:42:32,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 521 transitions, 1551 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-16 23:42:32,166 INFO L231 Difference]: Finished difference. Result has 537 places, 521 transitions, 1427 flow [2024-11-16 23:42:32,167 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} [2024-11-16 23:42:32,167 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 74 predicate places. [2024-11-16 23:42:32,168 INFO L471 AbstractCegarLoop]: Abstraction has has 537 places, 521 transitions, 1427 flow [2024-11-16 23:42:32,168 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) [2024-11-16 23:42:32,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:32,169 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] [2024-11-16 23:42:32,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 23:42:32,369 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 [2024-11-16 23:42:32,370 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)] === [2024-11-16 23:42:32,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash -928859278, now seen corresponding path program 1 times [2024-11-16 23:42:32,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:32,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281808592] [2024-11-16 23:42:32,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:32,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:32,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:35,040 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-16 23:42:35,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:35,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281808592] [2024-11-16 23:42:35,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281808592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:42:35,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91480873] [2024-11-16 23:42:35,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:35,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:42:35,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:42:35,045 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) [2024-11-16 23:42:35,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 23:42:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:36,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 5730 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 23:42:36,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:42:37,247 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-16 23:42:37,247 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:42:38,134 INFO L134 CoverageAnalysis]: Checked inductivity of 8372 backedges. 4516 proven. 1925 refuted. 0 times theorem prover too weak. 1931 trivial. 0 not checked. [2024-11-16 23:42:38,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91480873] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:42:38,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:42:38,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-16 23:42:38,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517259570] [2024-11-16 23:42:38,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:42:38,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-16 23:42:38,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:38,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-16 23:42:38,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-16 23:42:38,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 488 [2024-11-16 23:42:38,188 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) [2024-11-16 23:42:38,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:38,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 488 [2024-11-16 23:42:38,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:40,448 INFO L124 PetriNetUnfolderBase]: 17/4576 cut-off events. [2024-11-16 23:42:40,449 INFO L125 PetriNetUnfolderBase]: For 3874/3875 co-relation queries the response was YES. [2024-11-16 23:42:40,452 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. [2024-11-16 23:42:40,456 INFO L140 encePairwiseOnDemand]: 482/488 looper letters, 51 selfloop transitions, 135 changer transitions 0/622 dead transitions. [2024-11-16 23:42:40,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 622 transitions, 2563 flow [2024-11-16 23:42:40,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-16 23:42:40,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-16 23:42:40,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 20199 transitions. [2024-11-16 23:42:40,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9198087431693989 [2024-11-16 23:42:40,473 INFO L175 Difference]: Start difference. First operand has 537 places, 521 transitions, 1427 flow. Second operand 45 states and 20199 transitions. [2024-11-16 23:42:40,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 622 transitions, 2563 flow [2024-11-16 23:42:40,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 622 transitions, 2553 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-16 23:42:40,490 INFO L231 Difference]: Finished difference. Result has 585 places, 596 transitions, 2291 flow [2024-11-16 23:42:40,491 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} [2024-11-16 23:42:40,491 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 122 predicate places. [2024-11-16 23:42:40,492 INFO L471 AbstractCegarLoop]: Abstraction has has 585 places, 596 transitions, 2291 flow [2024-11-16 23:42:40,496 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) [2024-11-16 23:42:40,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:40,497 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] [2024-11-16 23:42:40,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-16 23:42:40,698 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 [2024-11-16 23:42:40,699 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)] === [2024-11-16 23:42:40,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:40,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1785442162, now seen corresponding path program 2 times [2024-11-16 23:42:40,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:40,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827836271] [2024-11-16 23:42:40,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:40,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:42:49,623 INFO L134 CoverageAnalysis]: Checked inductivity of 39740 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9591 trivial. 0 not checked. [2024-11-16 23:42:49,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:42:49,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827836271] [2024-11-16 23:42:49,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827836271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:42:49,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497634705] [2024-11-16 23:42:49,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:42:49,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:42:49,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:42:49,625 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) [2024-11-16 23:42:49,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 23:42:50,927 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-16 23:42:50,927 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:42:50,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-16 23:42:50,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:42:51,081 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 [2024-11-16 23:42:51,120 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 [2024-11-16 23:42:51,159 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:42:51,160 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 [2024-11-16 23:42:51,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:42:51,215 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 [2024-11-16 23:42:51,259 INFO L134 CoverageAnalysis]: Checked inductivity of 39740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39740 trivial. 0 not checked. [2024-11-16 23:42:51,259 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:42:51,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497634705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:42:51,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:42:51,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [33] total 39 [2024-11-16 23:42:51,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363131435] [2024-11-16 23:42:51,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:42:51,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 23:42:51,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:42:51,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 23:42:51,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=1167, Unknown=0, NotChecked=0, Total=1482 [2024-11-16 23:42:51,673 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 488 [2024-11-16 23:42:51,675 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) [2024-11-16 23:42:51,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:42:51,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 488 [2024-11-16 23:42:51,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:42:55,475 INFO L124 PetriNetUnfolderBase]: 630/6922 cut-off events. [2024-11-16 23:42:55,475 INFO L125 PetriNetUnfolderBase]: For 1347/1363 co-relation queries the response was YES. [2024-11-16 23:42:55,491 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. [2024-11-16 23:42:55,503 INFO L140 encePairwiseOnDemand]: 477/488 looper letters, 176 selfloop transitions, 10 changer transitions 0/677 dead transitions. [2024-11-16 23:42:55,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 677 transitions, 2825 flow [2024-11-16 23:42:55,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 23:42:55,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 23:42:55,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3076 transitions. [2024-11-16 23:42:55,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7879098360655737 [2024-11-16 23:42:55,506 INFO L175 Difference]: Start difference. First operand has 585 places, 596 transitions, 2291 flow. Second operand 8 states and 3076 transitions. [2024-11-16 23:42:55,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 677 transitions, 2825 flow [2024-11-16 23:42:55,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 574 places, 677 transitions, 2717 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-11-16 23:42:55,530 INFO L231 Difference]: Finished difference. Result has 579 places, 602 transitions, 2242 flow [2024-11-16 23:42:55,531 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} [2024-11-16 23:42:55,532 INFO L277 CegarLoopForPetriNet]: 463 programPoint places, 116 predicate places. [2024-11-16 23:42:55,532 INFO L471 AbstractCegarLoop]: Abstraction has has 579 places, 602 transitions, 2242 flow [2024-11-16 23:42:55,533 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) [2024-11-16 23:42:55,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:42:55,534 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] [2024-11-16 23:42:55,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-16 23:42:55,734 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 [2024-11-16 23:42:55,735 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)] === [2024-11-16 23:42:55,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:42:55,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1405354430, now seen corresponding path program 1 times [2024-11-16 23:42:55,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:42:55,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494695882] [2024-11-16 23:42:55,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:42:55,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:42:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:43:04,764 INFO L134 CoverageAnalysis]: Checked inductivity of 39751 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9602 trivial. 0 not checked. [2024-11-16 23:43:04,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:43:04,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494695882] [2024-11-16 23:43:04,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494695882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:43:04,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819145475] [2024-11-16 23:43:04,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:43:04,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:43:04,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:43:04,767 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) [2024-11-16 23:43:04,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 23:43:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:43:07,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 11688 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-16 23:43:07,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:43:08,810 INFO L134 CoverageAnalysis]: Checked inductivity of 39751 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9602 trivial. 0 not checked. [2024-11-16 23:43:08,810 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:43:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 39751 backedges. 20564 proven. 9585 refuted. 0 times theorem prover too weak. 9602 trivial. 0 not checked. [2024-11-16 23:43:10,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819145475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:43:10,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:43:10,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-16 23:43:10,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796080618] [2024-11-16 23:43:10,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:43:10,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-16 23:43:10,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:43:10,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-16 23:43:10,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-16 23:43:10,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 488 [2024-11-16 23:43:10,796 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) [2024-11-16 23:43:10,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:43:10,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 488 [2024-11-16 23:43:10,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand