./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC --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 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:06:36,650 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:06:36,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-24 00:06:36,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:06:36,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:06:36,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:06:36,837 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:06:36,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:06:36,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:06:36,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:06:36,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:06:36,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:06:36,840 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:06:36,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:06:36,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:06:36,841 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:06:36,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:06:36,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:06:36,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:06:36,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:06:36,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:06:36,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:06:36,842 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-24 00:06:36,843 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:06:36,843 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:06:36,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:06:36,843 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:06:36,843 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:06:36,844 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:06:36,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:06:36,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:06:36,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:36,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:06:36,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:06:36,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:06:36,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:36,846 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:06:36,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:06:36,846 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:06:36,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:06:36,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:06:36,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:06:36,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:06:36,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:06:36,847 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:06:36,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:06:36,848 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC 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 -> 265daba2b5ad7b4578f16c23ab641f7a5441c3a3894a2482737cba7b750ee6df [2024-11-24 00:06:37,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:06:37,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:06:37,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:06:37,244 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:06:37,245 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:06:37,246 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i [2024-11-24 00:06:40,960 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/data/62ac8a4a4/3258192f78594abba12e931e98c26165/FLAGfd44952e2 [2024-11-24 00:06:41,350 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:06:41,351 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/sv-benchmarks/c/goblint-regression/28-race_reach_11-ptr_racing.i [2024-11-24 00:06:41,375 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/data/62ac8a4a4/3258192f78594abba12e931e98c26165/FLAGfd44952e2 [2024-11-24 00:06:41,405 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/data/62ac8a4a4/3258192f78594abba12e931e98c26165 [2024-11-24 00:06:41,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:06:41,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:06:41,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:06:41,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:06:41,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:06:41,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:06:41" (1/1) ... [2024-11-24 00:06:41,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e33f4af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:41, skipping insertion in model container [2024-11-24 00:06:41,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:06:41" (1/1) ... [2024-11-24 00:06:41,471 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:06:41,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:06:41,911 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:06:41,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:06:42,060 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:06:42,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42 WrapperNode [2024-11-24 00:06:42,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:06:42,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:06:42,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:06:42,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:06:42,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,123 INFO L138 Inliner]: procedures = 171, calls = 49, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 102 [2024-11-24 00:06:42,124 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:06:42,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:06:42,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:06:42,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:06:42,134 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,140 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,154 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:06:42,176 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:06:42,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:06:42,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:06:42,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (1/1) ... [2024-11-24 00:06:42,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:06:42,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:06:42,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:06:42,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5340c67-c9fb-4119-ac22-e7bff0ace4ef/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:06:42,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 00:06:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 00:06:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 00:06:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:06:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:06:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 00:06:42,265 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 00:06:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:06:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 00:06:42,265 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 00:06:42,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:06:42,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:06:42,267 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 00:06:42,420 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:06:42,422 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:06:42,946 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:06:42,946 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:06:42,987 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:06:42,987 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-24 00:06:42,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:42 BoogieIcfgContainer [2024-11-24 00:06:42,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:06:42,991 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:06:42,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:06:42,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:06:42,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:06:41" (1/3) ... [2024-11-24 00:06:42,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eff1740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:06:42, skipping insertion in model container [2024-11-24 00:06:42,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:06:42" (2/3) ... [2024-11-24 00:06:42,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eff1740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:06:42, skipping insertion in model container [2024-11-24 00:06:42,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:06:42" (3/3) ... [2024-11-24 00:06:43,001 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_11-ptr_racing.i [2024-11-24 00:06:43,020 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:06:43,022 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_11-ptr_racing.i that has 2 procedures, 158 locations, 1 initial locations, 6 loop locations, and 7 error locations. [2024-11-24 00:06:43,023 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:06:43,150 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-24 00:06:43,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 171 transitions, 349 flow [2024-11-24 00:06:43,342 INFO L124 PetriNetUnfolderBase]: 19/235 cut-off events. [2024-11-24 00:06:43,349 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-24 00:06:43,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 235 events. 19/235 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 722 event pairs, 0 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 131. Up to 4 conditions per place. [2024-11-24 00:06:43,362 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 171 transitions, 349 flow [2024-11-24 00:06:43,395 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 161 places, 171 transitions, 349 flow [2024-11-24 00:06:43,416 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:06:43,439 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;@26831e17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:06:43,439 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-24 00:06:43,465 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:06:43,465 INFO L124 PetriNetUnfolderBase]: 2/63 cut-off events. [2024-11-24 00:06:43,465 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:06:43,465 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:06:43,466 INFO L206 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] [2024-11-24 00:06:43,467 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:06:43,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:43,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1714002331, now seen corresponding path program 1 times [2024-11-24 00:06:43,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:43,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050478681] [2024-11-24 00:06:43,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:43,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:44,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:44,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:44,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050478681] [2024-11-24 00:06:44,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050478681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:44,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:44,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:06:44,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735206032] [2024-11-24 00:06:44,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:44,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:06:44,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:45,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:06:45,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:06:45,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 171 [2024-11-24 00:06:45,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 171 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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) [2024-11-24 00:06:45,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:06:45,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 171 [2024-11-24 00:06:45,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:06:46,506 INFO L124 PetriNetUnfolderBase]: 579/2153 cut-off events. [2024-11-24 00:06:46,506 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-24 00:06:46,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3411 conditions, 2153 events. 579/2153 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 14967 event pairs, 372 based on Foata normal form. 226/2234 useless extension candidates. Maximal degree in co-relation 3263. Up to 1080 conditions per place. [2024-11-24 00:06:46,528 INFO L140 encePairwiseOnDemand]: 136/171 looper letters, 73 selfloop transitions, 70 changer transitions 0/250 dead transitions. [2024-11-24 00:06:46,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 250 transitions, 793 flow [2024-11-24 00:06:46,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:06:46,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:06:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 828 transitions. [2024-11-24 00:06:46,549 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8070175438596491 [2024-11-24 00:06:46,554 INFO L175 Difference]: Start difference. First operand has 161 places, 171 transitions, 349 flow. Second operand 6 states and 828 transitions. [2024-11-24 00:06:46,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 250 transitions, 793 flow [2024-11-24 00:06:46,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 250 transitions, 793 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:06:46,573 INFO L231 Difference]: Finished difference. Result has 169 places, 226 transitions, 783 flow [2024-11-24 00:06:46,578 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=783, PETRI_PLACES=169, PETRI_TRANSITIONS=226} [2024-11-24 00:06:46,585 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, 8 predicate places. [2024-11-24 00:06:46,586 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 226 transitions, 783 flow [2024-11-24 00:06:46,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 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) [2024-11-24 00:06:46,587 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:06:46,587 INFO L206 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] [2024-11-24 00:06:46,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:06:46,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:06:46,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:46,591 INFO L85 PathProgramCache]: Analyzing trace with hash -704187897, now seen corresponding path program 1 times [2024-11-24 00:06:46,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:46,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266911899] [2024-11-24 00:06:46,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:46,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:46,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:46,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:46,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266911899] [2024-11-24 00:06:46,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266911899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:46,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:46,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:06:46,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854876602] [2024-11-24 00:06:46,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:46,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:06:46,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:46,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:06:46,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:06:46,798 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 171 [2024-11-24 00:06:46,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 226 transitions, 783 flow. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2024-11-24 00:06:46,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:06:46,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 171 [2024-11-24 00:06:46,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:06:47,124 INFO L124 PetriNetUnfolderBase]: 188/1078 cut-off events. [2024-11-24 00:06:47,124 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-11-24 00:06:47,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1780 conditions, 1078 events. 188/1078 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6233 event pairs, 28 based on Foata normal form. 1/1007 useless extension candidates. Maximal degree in co-relation 1671. Up to 191 conditions per place. [2024-11-24 00:06:47,134 INFO L140 encePairwiseOnDemand]: 168/171 looper letters, 22 selfloop transitions, 3 changer transitions 0/232 dead transitions. [2024-11-24 00:06:47,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 232 transitions, 845 flow [2024-11-24 00:06:47,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:06:47,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:06:47,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2024-11-24 00:06:47,138 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8674463937621832 [2024-11-24 00:06:47,139 INFO L175 Difference]: Start difference. First operand has 169 places, 226 transitions, 783 flow. Second operand 3 states and 445 transitions. [2024-11-24 00:06:47,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 232 transitions, 845 flow [2024-11-24 00:06:47,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 232 transitions, 845 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:06:47,162 INFO L231 Difference]: Finished difference. Result has 172 places, 226 transitions, 794 flow [2024-11-24 00:06:47,164 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=172, PETRI_TRANSITIONS=226} [2024-11-24 00:06:47,165 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, 11 predicate places. [2024-11-24 00:06:47,166 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 226 transitions, 794 flow [2024-11-24 00:06:47,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2024-11-24 00:06:47,166 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:06:47,166 INFO L206 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] [2024-11-24 00:06:47,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:06:47,167 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:06:47,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:47,169 INFO L85 PathProgramCache]: Analyzing trace with hash 721642249, now seen corresponding path program 1 times [2024-11-24 00:06:47,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:47,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672582876] [2024-11-24 00:06:47,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:47,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:47,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:47,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:47,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672582876] [2024-11-24 00:06:47,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672582876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:47,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:47,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:06:47,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130372892] [2024-11-24 00:06:47,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:47,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:06:47,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:47,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:06:47,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:06:48,407 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 171 [2024-11-24 00:06:48,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 226 transitions, 794 flow. Second operand has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 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) [2024-11-24 00:06:48,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:06:48,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 171 [2024-11-24 00:06:48,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:06:48,991 INFO L124 PetriNetUnfolderBase]: 370/1581 cut-off events. [2024-11-24 00:06:48,991 INFO L125 PetriNetUnfolderBase]: For 466/478 co-relation queries the response was YES. [2024-11-24 00:06:48,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3266 conditions, 1581 events. 370/1581 cut-off events. For 466/478 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 10796 event pairs, 96 based on Foata normal form. 2/1526 useless extension candidates. Maximal degree in co-relation 3145. Up to 642 conditions per place. [2024-11-24 00:06:49,002 INFO L140 encePairwiseOnDemand]: 153/171 looper letters, 112 selfloop transitions, 53 changer transitions 0/285 dead transitions. [2024-11-24 00:06:49,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 285 transitions, 1366 flow [2024-11-24 00:06:49,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:06:49,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:06:49,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 797 transitions. [2024-11-24 00:06:49,005 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.776803118908382 [2024-11-24 00:06:49,006 INFO L175 Difference]: Start difference. First operand has 172 places, 226 transitions, 794 flow. Second operand 6 states and 797 transitions. [2024-11-24 00:06:49,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 285 transitions, 1366 flow [2024-11-24 00:06:49,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 285 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:06:49,019 INFO L231 Difference]: Finished difference. Result has 180 places, 269 transitions, 1276 flow [2024-11-24 00:06:49,019 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=180, PETRI_TRANSITIONS=269} [2024-11-24 00:06:49,020 INFO L279 CegarLoopForPetriNet]: 161 programPoint places, 19 predicate places. [2024-11-24 00:06:49,020 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 269 transitions, 1276 flow [2024-11-24 00:06:49,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.16666666666667) internal successors, (727), 6 states have internal predecessors, (727), 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) [2024-11-24 00:06:49,021 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:06:49,021 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-24 00:06:49,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:06:49,022 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-24 00:06:49,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:49,023 INFO L85 PathProgramCache]: Analyzing trace with hash -413710532, now seen corresponding path program 1 times [2024-11-24 00:06:49,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:49,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077733076] [2024-11-24 00:06:49,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:49,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:06:49,069 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:06:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:06:49,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:06:49,141 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:06:49,142 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-24 00:06:49,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-24 00:06:49,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-24 00:06:49,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-24 00:06:49,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-24 00:06:49,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-24 00:06:49,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-24 00:06:49,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-24 00:06:49,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-24 00:06:49,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-24 00:06:49,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-24 00:06:49,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-24 00:06:49,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:06:49,149 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:06:49,153 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-24 00:06:49,153 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-24 00:06:49,225 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-24 00:06:49,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 222 places, 237 transitions, 490 flow [2024-11-24 00:06:49,316 INFO L124 PetriNetUnfolderBase]: 34/393 cut-off events. [2024-11-24 00:06:49,316 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-24 00:06:49,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 393 events. 34/393 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1480 event pairs, 0 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 237. Up to 8 conditions per place. [2024-11-24 00:06:49,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 222 places, 237 transitions, 490 flow [2024-11-24 00:06:49,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 222 places, 237 transitions, 490 flow [2024-11-24 00:06:49,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:06:49,331 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;@26831e17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:06:49,331 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-24 00:06:49,340 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:06:49,340 INFO L124 PetriNetUnfolderBase]: 2/63 cut-off events. [2024-11-24 00:06:49,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:06:49,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:06:49,341 INFO L206 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] [2024-11-24 00:06:49,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:06:49,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:06:49,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1163054427, now seen corresponding path program 1 times [2024-11-24 00:06:49,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:06:49,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131468851] [2024-11-24 00:06:49,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:06:49,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:06:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:06:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:06:49,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:06:49,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131468851] [2024-11-24 00:06:49,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131468851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:06:49,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:06:49,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:06:49,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117532207] [2024-11-24 00:06:49,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:06:49,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:06:49,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:06:49,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:06:49,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:06:50,226 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 237 [2024-11-24 00:06:50,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 237 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-24 00:06:50,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:06:50,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 237 [2024-11-24 00:06:50,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:07:02,136 INFO L124 PetriNetUnfolderBase]: 29151/68526 cut-off events. [2024-11-24 00:07:02,136 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2024-11-24 00:07:02,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114062 conditions, 68526 events. 29151/68526 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 1190. Compared 764172 event pairs, 20503 based on Foata normal form. 8139/72575 useless extension candidates. Maximal degree in co-relation 101010. Up to 40549 conditions per place. [2024-11-24 00:07:02,579 INFO L140 encePairwiseOnDemand]: 180/237 looper letters, 122 selfloop transitions, 134 changer transitions 0/399 dead transitions. [2024-11-24 00:07:02,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 399 transitions, 1331 flow [2024-11-24 00:07:02,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:07:02,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:07:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1187 transitions. [2024-11-24 00:07:02,586 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8347398030942335 [2024-11-24 00:07:02,586 INFO L175 Difference]: Start difference. First operand has 222 places, 237 transitions, 490 flow. Second operand 6 states and 1187 transitions. [2024-11-24 00:07:02,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 399 transitions, 1331 flow [2024-11-24 00:07:02,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 399 transitions, 1331 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:07:02,630 INFO L231 Difference]: Finished difference. Result has 230 places, 350 transitions, 1328 flow [2024-11-24 00:07:02,630 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=230, PETRI_TRANSITIONS=350} [2024-11-24 00:07:02,631 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 8 predicate places. [2024-11-24 00:07:02,631 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 350 transitions, 1328 flow [2024-11-24 00:07:02,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 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) [2024-11-24 00:07:02,632 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:07:02,632 INFO L206 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] [2024-11-24 00:07:02,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:07:02,633 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:07:02,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:02,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1884138649, now seen corresponding path program 1 times [2024-11-24 00:07:02,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:02,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077943657] [2024-11-24 00:07:02,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:02,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:02,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:02,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:02,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077943657] [2024-11-24 00:07:02,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077943657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:07:02,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:07:02,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:07:02,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619552371] [2024-11-24 00:07:02,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:07:02,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:07:02,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:02,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:07:02,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:07:02,774 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 237 [2024-11-24 00:07:02,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 350 transitions, 1328 flow. Second operand has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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) [2024-11-24 00:07:02,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:07:02,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 237 [2024-11-24 00:07:02,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:07:07,508 INFO L124 PetriNetUnfolderBase]: 9834/31017 cut-off events. [2024-11-24 00:07:07,508 INFO L125 PetriNetUnfolderBase]: For 5115/5432 co-relation queries the response was YES. [2024-11-24 00:07:07,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55512 conditions, 31017 events. 9834/31017 cut-off events. For 5115/5432 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 351545 event pairs, 3863 based on Foata normal form. 1/28494 useless extension candidates. Maximal degree in co-relation 49486. Up to 9284 conditions per place. [2024-11-24 00:07:07,694 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 32 selfloop transitions, 3 changer transitions 0/358 dead transitions. [2024-11-24 00:07:07,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 358 transitions, 1420 flow [2024-11-24 00:07:07,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:07:07,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:07:07,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2024-11-24 00:07:07,697 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8579465541490858 [2024-11-24 00:07:07,697 INFO L175 Difference]: Start difference. First operand has 230 places, 350 transitions, 1328 flow. Second operand 3 states and 610 transitions. [2024-11-24 00:07:07,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 358 transitions, 1420 flow [2024-11-24 00:07:07,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 358 transitions, 1420 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:07:07,895 INFO L231 Difference]: Finished difference. Result has 233 places, 352 transitions, 1353 flow [2024-11-24 00:07:07,896 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1353, PETRI_PLACES=233, PETRI_TRANSITIONS=352} [2024-11-24 00:07:07,897 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 11 predicate places. [2024-11-24 00:07:07,897 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 352 transitions, 1353 flow [2024-11-24 00:07:07,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 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) [2024-11-24 00:07:07,898 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:07:07,898 INFO L206 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] [2024-11-24 00:07:07,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:07:07,899 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:07:07,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:07,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1933915625, now seen corresponding path program 1 times [2024-11-24 00:07:07,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:07,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889943261] [2024-11-24 00:07:07,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:07,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:08,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:08,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:08,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889943261] [2024-11-24 00:07:08,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889943261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:07:08,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:07:08,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:07:08,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074121402] [2024-11-24 00:07:08,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:07:08,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:07:08,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:08,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:07:08,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:07:09,081 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 237 [2024-11-24 00:07:09,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 352 transitions, 1353 flow. Second operand has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 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) [2024-11-24 00:07:09,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:07:09,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 237 [2024-11-24 00:07:09,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:07:16,996 INFO L124 PetriNetUnfolderBase]: 21476/52262 cut-off events. [2024-11-24 00:07:16,996 INFO L125 PetriNetUnfolderBase]: For 18722/19812 co-relation queries the response was YES. [2024-11-24 00:07:17,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117113 conditions, 52262 events. 21476/52262 cut-off events. For 18722/19812 co-relation queries the response was YES. Maximal size of possible extension queue 1034. Compared 576884 event pairs, 8048 based on Foata normal form. 47/49699 useless extension candidates. Maximal degree in co-relation 116941. Up to 25420 conditions per place. [2024-11-24 00:07:17,319 INFO L140 encePairwiseOnDemand]: 211/237 looper letters, 192 selfloop transitions, 141 changer transitions 0/531 dead transitions. [2024-11-24 00:07:17,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 531 transitions, 2821 flow [2024-11-24 00:07:17,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:07:17,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:07:17,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1141 transitions. [2024-11-24 00:07:17,323 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8023909985935302 [2024-11-24 00:07:17,323 INFO L175 Difference]: Start difference. First operand has 233 places, 352 transitions, 1353 flow. Second operand 6 states and 1141 transitions. [2024-11-24 00:07:17,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 531 transitions, 2821 flow [2024-11-24 00:07:17,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 531 transitions, 2818 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:07:17,638 INFO L231 Difference]: Finished difference. Result has 242 places, 483 transitions, 2734 flow [2024-11-24 00:07:17,639 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1350, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2734, PETRI_PLACES=242, PETRI_TRANSITIONS=483} [2024-11-24 00:07:17,640 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 20 predicate places. [2024-11-24 00:07:17,640 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 483 transitions, 2734 flow [2024-11-24 00:07:17,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 165.16666666666666) internal successors, (991), 6 states have internal predecessors, (991), 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) [2024-11-24 00:07:17,641 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:07:17,641 INFO L206 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] [2024-11-24 00:07:17,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:07:17,641 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:07:17,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:17,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1769510198, now seen corresponding path program 1 times [2024-11-24 00:07:17,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:17,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244723565] [2024-11-24 00:07:17,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:17,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:17,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:17,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:17,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244723565] [2024-11-24 00:07:17,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244723565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:07:17,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:07:17,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:07:17,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096606635] [2024-11-24 00:07:17,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:07:17,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:07:17,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:17,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:07:17,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:07:17,827 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 237 [2024-11-24 00:07:17,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 483 transitions, 2734 flow. Second operand has 5 states, 5 states have (on average 192.0) internal successors, (960), 5 states have internal predecessors, (960), 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) [2024-11-24 00:07:17,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:07:17,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 237 [2024-11-24 00:07:17,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:07:25,344 INFO L124 PetriNetUnfolderBase]: 14228/45032 cut-off events. [2024-11-24 00:07:25,344 INFO L125 PetriNetUnfolderBase]: For 21893/23390 co-relation queries the response was YES. [2024-11-24 00:07:25,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97629 conditions, 45032 events. 14228/45032 cut-off events. For 21893/23390 co-relation queries the response was YES. Maximal size of possible extension queue 829. Compared 538015 event pairs, 3496 based on Foata normal form. 46/41857 useless extension candidates. Maximal degree in co-relation 38369. Up to 14734 conditions per place. [2024-11-24 00:07:25,664 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 56 selfloop transitions, 7 changer transitions 0/515 dead transitions. [2024-11-24 00:07:25,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 515 transitions, 2924 flow [2024-11-24 00:07:25,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:07:25,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:07:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1202 transitions. [2024-11-24 00:07:25,670 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8452883263009845 [2024-11-24 00:07:25,670 INFO L175 Difference]: Start difference. First operand has 242 places, 483 transitions, 2734 flow. Second operand 6 states and 1202 transitions. [2024-11-24 00:07:25,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 515 transitions, 2924 flow [2024-11-24 00:07:25,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 515 transitions, 2906 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-24 00:07:25,946 INFO L231 Difference]: Finished difference. Result has 250 places, 485 transitions, 2748 flow [2024-11-24 00:07:25,946 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=2716, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2748, PETRI_PLACES=250, PETRI_TRANSITIONS=485} [2024-11-24 00:07:25,947 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 28 predicate places. [2024-11-24 00:07:25,948 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 485 transitions, 2748 flow [2024-11-24 00:07:25,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 192.0) internal successors, (960), 5 states have internal predecessors, (960), 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) [2024-11-24 00:07:25,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:07:25,952 INFO L206 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] [2024-11-24 00:07:25,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:07:25,952 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:07:25,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:25,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1926873074, now seen corresponding path program 1 times [2024-11-24 00:07:25,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:25,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497422729] [2024-11-24 00:07:25,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:25,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:26,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:26,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:26,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497422729] [2024-11-24 00:07:26,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497422729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:07:26,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:07:26,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:07:26,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362660708] [2024-11-24 00:07:26,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:07:26,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:07:26,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:26,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:07:26,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:07:26,989 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 237 [2024-11-24 00:07:26,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 485 transitions, 2748 flow. Second operand has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 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) [2024-11-24 00:07:26,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:07:26,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 237 [2024-11-24 00:07:26,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:07:44,632 INFO L124 PetriNetUnfolderBase]: 44845/102377 cut-off events. [2024-11-24 00:07:44,632 INFO L125 PetriNetUnfolderBase]: For 68152/71626 co-relation queries the response was YES. [2024-11-24 00:07:44,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259790 conditions, 102377 events. 44845/102377 cut-off events. For 68152/71626 co-relation queries the response was YES. Maximal size of possible extension queue 1650. Compared 1175806 event pairs, 22595 based on Foata normal form. 120/96876 useless extension candidates. Maximal degree in co-relation 231083. Up to 64117 conditions per place. [2024-11-24 00:07:45,271 INFO L140 encePairwiseOnDemand]: 202/237 looper letters, 372 selfloop transitions, 245 changer transitions 0/768 dead transitions. [2024-11-24 00:07:45,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 768 transitions, 5440 flow [2024-11-24 00:07:45,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:07:45,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 00:07:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1114 transitions. [2024-11-24 00:07:45,275 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7834036568213784 [2024-11-24 00:07:45,275 INFO L175 Difference]: Start difference. First operand has 250 places, 485 transitions, 2748 flow. Second operand 6 states and 1114 transitions. [2024-11-24 00:07:45,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 768 transitions, 5440 flow [2024-11-24 00:07:46,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 768 transitions, 5430 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-24 00:07:46,205 INFO L231 Difference]: Finished difference. Result has 258 places, 720 transitions, 5256 flow [2024-11-24 00:07:46,206 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=2738, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=485, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5256, PETRI_PLACES=258, PETRI_TRANSITIONS=720} [2024-11-24 00:07:46,207 INFO L279 CegarLoopForPetriNet]: 222 programPoint places, 36 predicate places. [2024-11-24 00:07:46,207 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 720 transitions, 5256 flow [2024-11-24 00:07:46,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.16666666666666) internal successors, (895), 6 states have internal predecessors, (895), 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) [2024-11-24 00:07:46,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:07:46,208 INFO L206 CegarLoopForPetriNet]: trace histogram [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] [2024-11-24 00:07:46,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:07:46,209 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-24 00:07:46,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:07:46,209 INFO L85 PathProgramCache]: Analyzing trace with hash -591381150, now seen corresponding path program 1 times [2024-11-24 00:07:46,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:07:46,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571138999] [2024-11-24 00:07:46,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:07:46,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:07:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:07:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:07:47,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:07:47,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571138999] [2024-11-24 00:07:47,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571138999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:07:47,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:07:47,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:07:47,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422773371] [2024-11-24 00:07:47,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:07:47,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:07:47,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:07:47,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:07:47,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:07:48,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 237 [2024-11-24 00:07:48,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 720 transitions, 5256 flow. Second operand has 11 states, 11 states have (on average 142.0) internal successors, (1562), 11 states have internal predecessors, (1562), 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) [2024-11-24 00:07:48,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:07:48,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 237 [2024-11-24 00:07:48,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand