./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_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 da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:34:49,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:34:49,134 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-10 14:34:49,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:34:49,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:34:49,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:34:49,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:34:49,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:34:49,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:34:49,177 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:34:49,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:34:49,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:34:49,178 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:34:49,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:34:49,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 14:34:49,181 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:34:49,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:34:49,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:34:49,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:34:49,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 14:34:49,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:34:49,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 14:34:49,184 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-10 14:34:49,184 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:34:49,185 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:34:49,185 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:34:49,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 14:34:49,186 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:34:49,186 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:34:49,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:34:49,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:34:49,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:34:49,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:34:49,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:34:49,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 14:34:49,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:34:49,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:34:49,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:34:49,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:34:49,189 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:34:49,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:34:49,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2024-11-10 14:34:49,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:34:49,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:34:49,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:34:49,495 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:34:49,495 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:34:49,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2024-11-10 14:34:51,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:34:51,316 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:34:51,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2024-11-10 14:34:51,341 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72a39f9eb/888cf646153b421bb62989f333031cd8/FLAGef9541459 [2024-11-10 14:34:51,582 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72a39f9eb/888cf646153b421bb62989f333031cd8 [2024-11-10 14:34:51,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:34:51,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:34:51,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:34:51,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:34:51,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:34:51,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:34:51" (1/1) ... [2024-11-10 14:34:51,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74f7e020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:51, skipping insertion in model container [2024-11-10 14:34:51,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:34:51" (1/1) ... [2024-11-10 14:34:51,655 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:34:52,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:34:52,217 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:34:52,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:34:52,428 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:34:52,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52 WrapperNode [2024-11-10 14:34:52,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:34:52,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:34:52,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:34:52,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:34:52,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (1/1) ... [2024-11-10 14:34:52,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (1/1) ... [2024-11-10 14:34:52,517 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 553 [2024-11-10 14:34:52,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:34:52,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:34:52,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:34:52,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:34:52,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (1/1) ... [2024-11-10 14:34:52,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (1/1) ... [2024-11-10 14:34:52,545 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (1/1) ... [2024-11-10 14:34:52,545 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (1/1) ... [2024-11-10 14:34:52,584 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (1/1) ... [2024-11-10 14:34:52,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (1/1) ... [2024-11-10 14:34:52,596 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (1/1) ... [2024-11-10 14:34:52,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (1/1) ... [2024-11-10 14:34:52,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:34:52,620 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:34:52,620 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:34:52,620 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:34:52,622 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (1/1) ... [2024-11-10 14:34:52,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:34:52,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:34:52,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:34:52,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:34:52,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:34:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-10 14:34:52,722 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-10 14:34:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-10 14:34:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:34:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 14:34:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-10 14:34:52,723 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-10 14:34:52,723 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-10 14:34:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-10 14:34:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 14:34:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 14:34:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 14:34:52,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-10 14:34:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-11-10 14:34:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-11-10 14:34:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-10 14:34:52,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:34:52,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:34:52,729 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 14:34:52,941 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:34:52,943 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:34:53,834 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2024-11-10 14:34:53,835 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2024-11-10 14:34:53,835 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2024-11-10 14:34:53,835 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2024-11-10 14:34:53,835 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055: havoc main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset; [2024-11-10 14:34:53,835 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055-1: SUMMARY for call ULTIMATE.dealloc(main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset); srcloc: null [2024-11-10 14:34:53,837 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 14:34:53,837 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:34:53,902 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:34:53,903 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:34:53,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:34:53 BoogieIcfgContainer [2024-11-10 14:34:53,904 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:34:53,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:34:53,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:34:53,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:34:53,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:34:51" (1/3) ... [2024-11-10 14:34:53,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37af680f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:34:53, skipping insertion in model container [2024-11-10 14:34:53,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:34:52" (2/3) ... [2024-11-10 14:34:53,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37af680f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:34:53, skipping insertion in model container [2024-11-10 14:34:53,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:34:53" (3/3) ... [2024-11-10 14:34:53,913 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2024-11-10 14:34:53,927 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:34:53,927 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-11-10 14:34:53,927 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 14:34:54,204 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-10 14:34:54,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 583 places, 624 transitions, 1287 flow [2024-11-10 14:34:55,032 INFO L124 PetriNetUnfolderBase]: 171/1849 cut-off events. [2024-11-10 14:34:55,033 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-10 14:34:55,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1903 conditions, 1849 events. 171/1849 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 13055 event pairs, 0 based on Foata normal form. 0/1566 useless extension candidates. Maximal degree in co-relation 943. Up to 16 conditions per place. [2024-11-10 14:34:55,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 583 places, 624 transitions, 1287 flow [2024-11-10 14:34:55,108 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 583 places, 624 transitions, 1287 flow [2024-11-10 14:34:55,123 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:34:55,131 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;@33f2ff18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:34:55,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-11-10 14:34:55,137 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 14:34:55,137 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2024-11-10 14:34:55,138 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 14:34:55,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:34:55,139 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] [2024-11-10 14:34:55,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-10 14:34:55,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:34:55,145 INFO L85 PathProgramCache]: Analyzing trace with hash 521519660, now seen corresponding path program 1 times [2024-11-10 14:34:55,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:34:55,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589303688] [2024-11-10 14:34:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:34:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:34:55,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:34:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:34:55,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:34:55,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589303688] [2024-11-10 14:34:55,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589303688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:34:55,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:34:55,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:34:55,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012802589] [2024-11-10 14:34:55,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:34:55,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:34:55,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:34:55,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:34:55,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:34:55,551 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 546 out of 624 [2024-11-10 14:34:55,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 624 transitions, 1287 flow. Second operand has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:34:55,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:34:55,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 546 of 624 [2024-11-10 14:34:55,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:04,716 INFO L124 PetriNetUnfolderBase]: 5033/35211 cut-off events. [2024-11-10 14:35:04,716 INFO L125 PetriNetUnfolderBase]: For 2744/2744 co-relation queries the response was YES. [2024-11-10 14:35:05,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42860 conditions, 35211 events. 5033/35211 cut-off events. For 2744/2744 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 489670 event pairs, 4102 based on Foata normal form. 7715/39929 useless extension candidates. Maximal degree in co-relation 28554. Up to 6610 conditions per place. [2024-11-10 14:35:05,271 INFO L140 encePairwiseOnDemand]: 589/624 looper letters, 41 selfloop transitions, 2 changer transitions 0/587 dead transitions. [2024-11-10 14:35:05,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 587 transitions, 1299 flow [2024-11-10 14:35:05,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:35:05,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:35:05,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1714 transitions. [2024-11-10 14:35:05,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9155982905982906 [2024-11-10 14:35:05,300 INFO L175 Difference]: Start difference. First operand has 583 places, 624 transitions, 1287 flow. Second operand 3 states and 1714 transitions. [2024-11-10 14:35:05,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 587 transitions, 1299 flow [2024-11-10 14:35:05,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 580 places, 587 transitions, 1299 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 14:35:05,331 INFO L231 Difference]: Finished difference. Result has 580 places, 587 transitions, 1217 flow [2024-11-10 14:35:05,334 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=624, PETRI_DIFFERENCE_MINUEND_FLOW=1213, PETRI_DIFFERENCE_MINUEND_PLACES=578, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1217, PETRI_PLACES=580, PETRI_TRANSITIONS=587} [2024-11-10 14:35:05,340 INFO L277 CegarLoopForPetriNet]: 583 programPoint places, -3 predicate places. [2024-11-10 14:35:05,341 INFO L471 AbstractCegarLoop]: Abstraction has has 580 places, 587 transitions, 1217 flow [2024-11-10 14:35:05,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:05,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:05,343 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] [2024-11-10 14:35:05,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:35:05,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-10 14:35:05,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:05,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1057122608, now seen corresponding path program 1 times [2024-11-10 14:35:05,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:05,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275083301] [2024-11-10 14:35:05,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:05,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:05,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:05,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:05,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275083301] [2024-11-10 14:35:05,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275083301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:05,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:05,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:35:05,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99700592] [2024-11-10 14:35:05,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:05,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:35:05,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:05,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:35:05,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:35:05,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 546 out of 624 [2024-11-10 14:35:05,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 587 transitions, 1217 flow. Second operand has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:05,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:05,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 546 of 624 [2024-11-10 14:35:05,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 14:35:12,698 INFO L124 PetriNetUnfolderBase]: 3685/31683 cut-off events. [2024-11-10 14:35:12,698 INFO L125 PetriNetUnfolderBase]: For 3377/3377 co-relation queries the response was YES. [2024-11-10 14:35:12,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38015 conditions, 31683 events. 3685/31683 cut-off events. For 3377/3377 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 426023 event pairs, 2942 based on Foata normal form. 0/28804 useless extension candidates. Maximal degree in co-relation 37961. Up to 5046 conditions per place. [2024-11-10 14:35:13,120 INFO L140 encePairwiseOnDemand]: 620/624 looper letters, 40 selfloop transitions, 1 changer transitions 0/584 dead transitions. [2024-11-10 14:35:13,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 584 transitions, 1293 flow [2024-11-10 14:35:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:35:13,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 14:35:13,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1682 transitions. [2024-11-10 14:35:13,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8985042735042735 [2024-11-10 14:35:13,126 INFO L175 Difference]: Start difference. First operand has 580 places, 587 transitions, 1217 flow. Second operand 3 states and 1682 transitions. [2024-11-10 14:35:13,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 584 transitions, 1293 flow [2024-11-10 14:35:13,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 577 places, 584 transitions, 1289 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 14:35:13,154 INFO L231 Difference]: Finished difference. Result has 577 places, 584 transitions, 1209 flow [2024-11-10 14:35:13,155 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=624, PETRI_DIFFERENCE_MINUEND_FLOW=1207, PETRI_DIFFERENCE_MINUEND_PLACES=575, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1209, PETRI_PLACES=577, PETRI_TRANSITIONS=584} [2024-11-10 14:35:13,156 INFO L277 CegarLoopForPetriNet]: 583 programPoint places, -6 predicate places. [2024-11-10 14:35:13,157 INFO L471 AbstractCegarLoop]: Abstraction has has 577 places, 584 transitions, 1209 flow [2024-11-10 14:35:13,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:13,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 14:35:13,159 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] [2024-11-10 14:35:13,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:35:13,160 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [t2_funErr7ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr4ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-10 14:35:13,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:35:13,161 INFO L85 PathProgramCache]: Analyzing trace with hash 211493301, now seen corresponding path program 1 times [2024-11-10 14:35:13,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:35:13,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598344158] [2024-11-10 14:35:13,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:35:13,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:35:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:35:13,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:35:13,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:35:13,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598344158] [2024-11-10 14:35:13,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598344158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:35:13,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:35:13,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:35:13,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373849491] [2024-11-10 14:35:13,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:35:13,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:35:13,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:35:13,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:35:13,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:35:14,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 624 [2024-11-10 14:35:14,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 577 places, 584 transitions, 1209 flow. Second operand has 6 states, 6 states have (on average 435.3333333333333) internal successors, (2612), 6 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:35:14,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 14:35:14,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 624 [2024-11-10 14:35:14,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand