./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd --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 eddb66a74cd149f880832378d52d5c02c94fd6efcf2d83aeade11bcdaaabe426 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:48:51,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:48:51,941 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:48:51,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:48:51,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:48:51,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:48:51,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:48:51,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:48:51,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:48:51,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:48:51,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:48:51,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:48:51,995 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:48:51,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:48:51,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:48:51,996 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:48:51,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:48:51,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:48:51,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:48:51,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:48:51,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:48:51,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:48:51,997 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:48:51,997 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:48:51,997 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:48:51,997 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:48:51,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:48:51,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:48:52,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:48:52,001 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:48:52,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:48:52,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:48:52,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:48:52,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:48:52,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:48:52,002 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:48:52,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:48:52,003 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:48:52,003 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:48:52,003 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:48:52,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:48:52,003 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_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd 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 -> eddb66a74cd149f880832378d52d5c02c94fd6efcf2d83aeade11bcdaaabe426 [2024-11-13 15:48:52,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:48:52,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:48:52,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:48:52,433 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:48:52,433 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:48:52,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i Unable to find full path for "g++" [2024-11-13 15:48:54,799 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:48:55,261 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:48:55,263 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/sv-benchmarks/c/goblint-regression/28-race_reach_01-simple_racing.i [2024-11-13 15:48:55,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/data/7590407da/b1c58e49c49a4e2197f8ccfcd8ae23ef/FLAG80966d40a [2024-11-13 15:48:55,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/data/7590407da/b1c58e49c49a4e2197f8ccfcd8ae23ef [2024-11-13 15:48:55,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:48:55,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:48:55,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:48:55,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:48:55,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:48:55,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:55,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f94ac67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55, skipping insertion in model container [2024-11-13 15:48:55,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:55,388 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:48:55,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:48:55,863 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:48:55,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:48:55,971 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:48:55,972 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55 WrapperNode [2024-11-13 15:48:55,972 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:48:55,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:48:55,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:48:55,973 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:48:55,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:55,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:56,037 INFO L138 Inliner]: procedures = 174, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 104 [2024-11-13 15:48:56,038 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:48:56,039 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:48:56,039 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:48:56,040 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:48:56,051 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:56,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:56,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:56,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:56,072 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:56,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:56,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:56,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:56,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:48:56,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:48:56,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:48:56,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:48:56,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (1/1) ... [2024-11-13 15:48:56,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:48:56,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:48:56,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:48:56,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:48:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 15:48:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 15:48:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:48:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:48:56,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:48:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 15:48:56,183 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 15:48:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:48:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:48:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:48:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:48:56,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:48:56,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:48:56,185 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:48:56,356 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:48:56,360 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:48:56,857 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:48:56,858 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:48:56,915 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:48:56,916 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-13 15:48:56,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:48:56 BoogieIcfgContainer [2024-11-13 15:48:56,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:48:56,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:48:56,919 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:48:56,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:48:56,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:48:55" (1/3) ... [2024-11-13 15:48:56,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46fb7326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:48:56, skipping insertion in model container [2024-11-13 15:48:56,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:48:55" (2/3) ... [2024-11-13 15:48:56,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46fb7326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:48:56, skipping insertion in model container [2024-11-13 15:48:56,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:48:56" (3/3) ... [2024-11-13 15:48:56,929 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_01-simple_racing.i [2024-11-13 15:48:56,948 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:48:56,950 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_01-simple_racing.i that has 2 procedures, 143 locations, 1 initial locations, 6 loop locations, and 7 error locations. [2024-11-13 15:48:56,951 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:48:57,055 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 15:48:57,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 156 transitions, 319 flow [2024-11-13 15:48:57,268 INFO L124 PetriNetUnfolderBase]: 19/215 cut-off events. [2024-11-13 15:48:57,271 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:48:57,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 215 events. 19/215 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 626 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 109. Up to 4 conditions per place. [2024-11-13 15:48:57,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 156 transitions, 319 flow [2024-11-13 15:48:57,289 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 156 transitions, 319 flow [2024-11-13 15:48:57,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:48:57,326 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;@7cd35c26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:48:57,326 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-13 15:48:57,354 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:48:57,355 INFO L124 PetriNetUnfolderBase]: 2/62 cut-off events. [2024-11-13 15:48:57,355 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:48:57,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:48:57,356 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] [2024-11-13 15:48:57,360 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-13 15:48:57,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:57,366 INFO L85 PathProgramCache]: Analyzing trace with hash 904599053, now seen corresponding path program 1 times [2024-11-13 15:48:57,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:57,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215565478] [2024-11-13 15:48:57,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:57,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:48:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:57,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:48:57,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:48:57,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215565478] [2024-11-13 15:48:57,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215565478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:48:57,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:48:57,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:48:57,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848643880] [2024-11-13 15:48:57,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:48:57,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:48:57,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:48:57,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:48:57,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:48:57,959 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 156 [2024-11-13 15:48:57,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 156 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2024-11-13 15:48:57,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:48:57,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 156 [2024-11-13 15:48:57,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:48:58,282 INFO L124 PetriNetUnfolderBase]: 48/509 cut-off events. [2024-11-13 15:48:58,283 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 15:48:58,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 630 conditions, 509 events. 48/509 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2325 event pairs, 28 based on Foata normal form. 65/523 useless extension candidates. Maximal degree in co-relation 543. Up to 108 conditions per place. [2024-11-13 15:48:58,294 INFO L140 encePairwiseOnDemand]: 141/156 looper letters, 22 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2024-11-13 15:48:58,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 148 transitions, 351 flow [2024-11-13 15:48:58,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:48:58,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:48:58,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 419 transitions. [2024-11-13 15:48:58,317 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8952991452991453 [2024-11-13 15:48:58,321 INFO L175 Difference]: Start difference. First operand has 146 places, 156 transitions, 319 flow. Second operand 3 states and 419 transitions. [2024-11-13 15:48:58,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 148 transitions, 351 flow [2024-11-13 15:48:58,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 148 transitions, 351 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:48:58,338 INFO L231 Difference]: Finished difference. Result has 147 places, 142 transitions, 299 flow [2024-11-13 15:48:58,342 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=299, PETRI_PLACES=147, PETRI_TRANSITIONS=142} [2024-11-13 15:48:58,348 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2024-11-13 15:48:58,349 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 142 transitions, 299 flow [2024-11-13 15:48:58,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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) [2024-11-13 15:48:58,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:48:58,351 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] [2024-11-13 15:48:58,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:48:58,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-13 15:48:58,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:58,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1397617934, now seen corresponding path program 1 times [2024-11-13 15:48:58,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:58,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894659474] [2024-11-13 15:48:58,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:58,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:48:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:48:59,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:48:59,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:48:59,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894659474] [2024-11-13 15:48:59,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894659474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:48:59,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:48:59,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:48:59,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058110929] [2024-11-13 15:48:59,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:48:59,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:48:59,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:48:59,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:48:59,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:48:59,664 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 156 [2024-11-13 15:48:59,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 142 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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) [2024-11-13 15:48:59,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:48:59,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 156 [2024-11-13 15:48:59,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:48:59,975 INFO L124 PetriNetUnfolderBase]: 108/682 cut-off events. [2024-11-13 15:48:59,975 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-13 15:48:59,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 682 events. 108/682 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3832 event pairs, 66 based on Foata normal form. 0/622 useless extension candidates. Maximal degree in co-relation 860. Up to 181 conditions per place. [2024-11-13 15:48:59,982 INFO L140 encePairwiseOnDemand]: 150/156 looper letters, 48 selfloop transitions, 5 changer transitions 0/165 dead transitions. [2024-11-13 15:48:59,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 165 transitions, 451 flow [2024-11-13 15:48:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:48:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:48:59,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 732 transitions. [2024-11-13 15:48:59,991 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.782051282051282 [2024-11-13 15:48:59,991 INFO L175 Difference]: Start difference. First operand has 147 places, 142 transitions, 299 flow. Second operand 6 states and 732 transitions. [2024-11-13 15:48:59,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 165 transitions, 451 flow [2024-11-13 15:48:59,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 165 transitions, 447 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:48:59,995 INFO L231 Difference]: Finished difference. Result has 149 places, 141 transitions, 303 flow [2024-11-13 15:48:59,996 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2024-11-13 15:48:59,996 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 3 predicate places. [2024-11-13 15:48:59,996 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 303 flow [2024-11-13 15:48:59,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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) [2024-11-13 15:48:59,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:48:59,997 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:48:59,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:48:59,998 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-13 15:48:59,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:48:59,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1367033730, now seen corresponding path program 1 times [2024-11-13 15:48:59,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:48:59,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022348738] [2024-11-13 15:48:59,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:48:59,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:00,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:00,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:00,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022348738] [2024-11-13 15:49:00,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022348738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:49:00,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:49:00,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:49:00,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081357055] [2024-11-13 15:49:00,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:49:00,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:49:00,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:00,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:49:00,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:49:00,141 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 156 [2024-11-13 15:49:00,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 303 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2024-11-13 15:49:00,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:00,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 156 [2024-11-13 15:49:00,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:49:00,408 INFO L124 PetriNetUnfolderBase]: 91/804 cut-off events. [2024-11-13 15:49:00,408 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-13 15:49:00,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 804 events. 91/804 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4655 event pairs, 30 based on Foata normal form. 0/735 useless extension candidates. Maximal degree in co-relation 962. Up to 125 conditions per place. [2024-11-13 15:49:00,414 INFO L140 encePairwiseOnDemand]: 147/156 looper letters, 30 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2024-11-13 15:49:00,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 154 transitions, 404 flow [2024-11-13 15:49:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:49:00,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:49:00,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2024-11-13 15:49:00,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8525641025641025 [2024-11-13 15:49:00,418 INFO L175 Difference]: Start difference. First operand has 149 places, 141 transitions, 303 flow. Second operand 3 states and 399 transitions. [2024-11-13 15:49:00,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 154 transitions, 404 flow [2024-11-13 15:49:00,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 154 transitions, 394 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:49:00,426 INFO L231 Difference]: Finished difference. Result has 146 places, 143 transitions, 331 flow [2024-11-13 15:49:00,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=331, PETRI_PLACES=146, PETRI_TRANSITIONS=143} [2024-11-13 15:49:00,427 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 0 predicate places. [2024-11-13 15:49:00,427 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 143 transitions, 331 flow [2024-11-13 15:49:00,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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) [2024-11-13 15:49:00,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:00,432 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:49:00,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:49:00,433 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-13 15:49:00,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:00,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1331564913, now seen corresponding path program 1 times [2024-11-13 15:49:00,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:00,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505947464] [2024-11-13 15:49:00,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:00,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:00,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:00,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:00,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505947464] [2024-11-13 15:49:00,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505947464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:49:00,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:49:00,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:49:00,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380584530] [2024-11-13 15:49:00,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:49:00,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:49:00,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:00,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:49:00,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:49:00,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 156 [2024-11-13 15:49:00,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 143 transitions, 331 flow. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2024-11-13 15:49:00,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:00,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 156 [2024-11-13 15:49:00,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:49:00,808 INFO L124 PetriNetUnfolderBase]: 94/806 cut-off events. [2024-11-13 15:49:00,808 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-13 15:49:00,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 806 events. 94/806 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4773 event pairs, 60 based on Foata normal form. 0/738 useless extension candidates. Maximal degree in co-relation 1062. Up to 189 conditions per place. [2024-11-13 15:49:00,814 INFO L140 encePairwiseOnDemand]: 151/156 looper letters, 27 selfloop transitions, 4 changer transitions 0/150 dead transitions. [2024-11-13 15:49:00,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 150 transitions, 411 flow [2024-11-13 15:49:00,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:49:00,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:49:00,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-11-13 15:49:00,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.844017094017094 [2024-11-13 15:49:00,818 INFO L175 Difference]: Start difference. First operand has 146 places, 143 transitions, 331 flow. Second operand 3 states and 395 transitions. [2024-11-13 15:49:00,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 150 transitions, 411 flow [2024-11-13 15:49:00,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 150 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:49:00,826 INFO L231 Difference]: Finished difference. Result has 148 places, 146 transitions, 351 flow [2024-11-13 15:49:00,827 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=156, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=148, PETRI_TRANSITIONS=146} [2024-11-13 15:49:00,829 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 2 predicate places. [2024-11-13 15:49:00,829 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 146 transitions, 351 flow [2024-11-13 15:49:00,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 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) [2024-11-13 15:49:00,830 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:00,831 INFO L204 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:49:00,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:49:00,832 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-13 15:49:00,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:00,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2127288798, now seen corresponding path program 1 times [2024-11-13 15:49:00,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:00,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409659079] [2024-11-13 15:49:00,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:00,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:49:00,912 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:49:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:49:00,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:49:00,997 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:49:00,998 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-13 15:49:01,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-13 15:49:01,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-13 15:49:01,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-13 15:49:01,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-13 15:49:01,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-13 15:49:01,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-13 15:49:01,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-13 15:49:01,005 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-13 15:49:01,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-13 15:49:01,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-13 15:49:01,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-13 15:49:01,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:49:01,007 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-13 15:49:01,010 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:49:01,010 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 15:49:01,072 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 15:49:01,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 205 transitions, 426 flow [2024-11-13 15:49:01,171 INFO L124 PetriNetUnfolderBase]: 34/351 cut-off events. [2024-11-13 15:49:01,171 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 15:49:01,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 351 events. 34/351 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1170 event pairs, 0 based on Foata normal form. 0/295 useless extension candidates. Maximal degree in co-relation 217. Up to 8 conditions per place. [2024-11-13 15:49:01,176 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 205 transitions, 426 flow [2024-11-13 15:49:01,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 205 transitions, 426 flow [2024-11-13 15:49:01,183 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:49:01,183 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;@7cd35c26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:49:01,183 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-13 15:49:01,196 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:49:01,196 INFO L124 PetriNetUnfolderBase]: 2/62 cut-off events. [2024-11-13 15:49:01,196 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:49:01,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:01,197 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] [2024-11-13 15:49:01,197 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:49:01,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:01,198 INFO L85 PathProgramCache]: Analyzing trace with hash 692563930, now seen corresponding path program 1 times [2024-11-13 15:49:01,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:01,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691831604] [2024-11-13 15:49:01,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:01,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:01,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:01,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:01,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691831604] [2024-11-13 15:49:01,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691831604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:49:01,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:49:01,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:49:01,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097324197] [2024-11-13 15:49:01,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:49:01,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:49:01,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:01,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:49:01,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:49:01,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 205 [2024-11-13 15:49:01,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 205 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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) [2024-11-13 15:49:01,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:01,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 205 [2024-11-13 15:49:01,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:49:02,253 INFO L124 PetriNetUnfolderBase]: 784/4178 cut-off events. [2024-11-13 15:49:02,254 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-11-13 15:49:02,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5531 conditions, 4178 events. 784/4178 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 38675 event pairs, 632 based on Foata normal form. 769/4616 useless extension candidates. Maximal degree in co-relation 3414. Up to 1303 conditions per place. [2024-11-13 15:49:02,291 INFO L140 encePairwiseOnDemand]: 184/205 looper letters, 31 selfloop transitions, 2 changer transitions 0/192 dead transitions. [2024-11-13 15:49:02,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 192 transitions, 466 flow [2024-11-13 15:49:02,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:49:02,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:49:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2024-11-13 15:49:02,358 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8764227642276423 [2024-11-13 15:49:02,358 INFO L175 Difference]: Start difference. First operand has 190 places, 205 transitions, 426 flow. Second operand 3 states and 539 transitions. [2024-11-13 15:49:02,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 192 transitions, 466 flow [2024-11-13 15:49:02,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 192 transitions, 466 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:49:02,362 INFO L231 Difference]: Finished difference. Result has 191 places, 186 transitions, 398 flow [2024-11-13 15:49:02,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=191, PETRI_TRANSITIONS=186} [2024-11-13 15:49:02,364 INFO L277 CegarLoopForPetriNet]: 190 programPoint places, 1 predicate places. [2024-11-13 15:49:02,364 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 186 transitions, 398 flow [2024-11-13 15:49:02,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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) [2024-11-13 15:49:02,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:02,364 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] [2024-11-13 15:49:02,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:49:02,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:49:02,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:02,365 INFO L85 PathProgramCache]: Analyzing trace with hash -504665797, now seen corresponding path program 1 times [2024-11-13 15:49:02,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:02,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739720613] [2024-11-13 15:49:02,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:02,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:02,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:02,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739720613] [2024-11-13 15:49:02,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739720613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:49:02,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:49:02,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:49:02,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131778293] [2024-11-13 15:49:02,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:49:02,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:49:02,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:02,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:49:02,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:49:03,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 205 [2024-11-13 15:49:03,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 186 transitions, 398 flow. Second operand has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 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) [2024-11-13 15:49:03,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:03,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 205 [2024-11-13 15:49:03,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:49:04,931 INFO L124 PetriNetUnfolderBase]: 1718/7353 cut-off events. [2024-11-13 15:49:04,931 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-11-13 15:49:04,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10335 conditions, 7353 events. 1718/7353 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 74860 event pairs, 585 based on Foata normal form. 0/6708 useless extension candidates. Maximal degree in co-relation 5589. Up to 2015 conditions per place. [2024-11-13 15:49:04,999 INFO L140 encePairwiseOnDemand]: 199/205 looper letters, 80 selfloop transitions, 6 changer transitions 0/233 dead transitions. [2024-11-13 15:49:04,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 233 transitions, 664 flow [2024-11-13 15:49:05,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:49:05,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:49:05,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 974 transitions. [2024-11-13 15:49:05,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.791869918699187 [2024-11-13 15:49:05,004 INFO L175 Difference]: Start difference. First operand has 191 places, 186 transitions, 398 flow. Second operand 6 states and 974 transitions. [2024-11-13 15:49:05,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 233 transitions, 664 flow [2024-11-13 15:49:05,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 233 transitions, 662 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:49:05,010 INFO L231 Difference]: Finished difference. Result has 194 places, 185 transitions, 406 flow [2024-11-13 15:49:05,011 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=406, PETRI_PLACES=194, PETRI_TRANSITIONS=185} [2024-11-13 15:49:05,012 INFO L277 CegarLoopForPetriNet]: 190 programPoint places, 4 predicate places. [2024-11-13 15:49:05,012 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 185 transitions, 406 flow [2024-11-13 15:49:05,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.5) internal successors, (897), 6 states have internal predecessors, (897), 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) [2024-11-13 15:49:05,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:05,013 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:49:05,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:49:05,013 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:49:05,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1631117933, now seen corresponding path program 1 times [2024-11-13 15:49:05,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:05,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597845304] [2024-11-13 15:49:05,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:05,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:05,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:05,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:05,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597845304] [2024-11-13 15:49:05,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597845304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:49:05,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:49:05,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:49:05,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563547678] [2024-11-13 15:49:05,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:49:05,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:49:05,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:05,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:49:05,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:49:05,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 205 [2024-11-13 15:49:05,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 185 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2024-11-13 15:49:05,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:05,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 205 [2024-11-13 15:49:05,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:49:07,990 INFO L124 PetriNetUnfolderBase]: 3895/14524 cut-off events. [2024-11-13 15:49:07,991 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2024-11-13 15:49:08,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21082 conditions, 14524 events. 3895/14524 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 162421 event pairs, 1409 based on Foata normal form. 0/13037 useless extension candidates. Maximal degree in co-relation 14585. Up to 3516 conditions per place. [2024-11-13 15:49:08,087 INFO L140 encePairwiseOnDemand]: 186/205 looper letters, 58 selfloop transitions, 14 changer transitions 0/218 dead transitions. [2024-11-13 15:49:08,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 218 transitions, 627 flow [2024-11-13 15:49:08,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:49:08,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:49:08,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2024-11-13 15:49:08,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8422764227642277 [2024-11-13 15:49:08,090 INFO L175 Difference]: Start difference. First operand has 194 places, 185 transitions, 406 flow. Second operand 3 states and 518 transitions. [2024-11-13 15:49:08,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 218 transitions, 627 flow [2024-11-13 15:49:08,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 218 transitions, 615 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:49:08,099 INFO L231 Difference]: Finished difference. Result has 193 places, 199 transitions, 516 flow [2024-11-13 15:49:08,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=193, PETRI_TRANSITIONS=199} [2024-11-13 15:49:08,101 INFO L277 CegarLoopForPetriNet]: 190 programPoint places, 3 predicate places. [2024-11-13 15:49:08,101 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 199 transitions, 516 flow [2024-11-13 15:49:08,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2024-11-13 15:49:08,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:08,102 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:49:08,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:49:08,102 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:49:08,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:08,106 INFO L85 PathProgramCache]: Analyzing trace with hash 681492365, now seen corresponding path program 1 times [2024-11-13 15:49:08,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:08,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366783893] [2024-11-13 15:49:08,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:08,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:08,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:08,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:08,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366783893] [2024-11-13 15:49:08,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366783893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:49:08,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:49:08,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:49:08,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040255829] [2024-11-13 15:49:08,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:49:08,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:49:08,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:08,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:49:08,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:49:08,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 205 [2024-11-13 15:49:08,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 199 transitions, 516 flow. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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) [2024-11-13 15:49:08,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:08,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 205 [2024-11-13 15:49:08,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:49:10,529 INFO L124 PetriNetUnfolderBase]: 4045/16493 cut-off events. [2024-11-13 15:49:10,530 INFO L125 PetriNetUnfolderBase]: For 4383/4547 co-relation queries the response was YES. [2024-11-13 15:49:10,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27248 conditions, 16493 events. 4045/16493 cut-off events. For 4383/4547 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 194379 event pairs, 2517 based on Foata normal form. 46/14996 useless extension candidates. Maximal degree in co-relation 25959. Up to 5540 conditions per place. [2024-11-13 15:49:10,662 INFO L140 encePairwiseOnDemand]: 196/205 looper letters, 52 selfloop transitions, 14 changer transitions 0/223 dead transitions. [2024-11-13 15:49:10,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 223 transitions, 734 flow [2024-11-13 15:49:10,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:49:10,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:49:10,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2024-11-13 15:49:10,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.832520325203252 [2024-11-13 15:49:10,666 INFO L175 Difference]: Start difference. First operand has 193 places, 199 transitions, 516 flow. Second operand 3 states and 512 transitions. [2024-11-13 15:49:10,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 223 transitions, 734 flow [2024-11-13 15:49:10,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 223 transitions, 696 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:49:10,689 INFO L231 Difference]: Finished difference. Result has 195 places, 211 transitions, 614 flow [2024-11-13 15:49:10,691 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=614, PETRI_PLACES=195, PETRI_TRANSITIONS=211} [2024-11-13 15:49:10,691 INFO L277 CegarLoopForPetriNet]: 190 programPoint places, 5 predicate places. [2024-11-13 15:49:10,693 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 211 transitions, 614 flow [2024-11-13 15:49:10,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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) [2024-11-13 15:49:10,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:10,694 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:49:10,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:49:10,694 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:49:10,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:10,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1201156357, now seen corresponding path program 1 times [2024-11-13 15:49:10,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:10,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067125734] [2024-11-13 15:49:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:10,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:10,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:10,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:10,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067125734] [2024-11-13 15:49:10,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067125734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:49:10,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561960037] [2024-11-13 15:49:10,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:10,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:49:10,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:49:10,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:49:11,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:49:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:11,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:49:11,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:49:11,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:11,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:49:11,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:11,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561960037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:49:11,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:49:11,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 15:49:11,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649607428] [2024-11-13 15:49:11,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:49:11,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:49:11,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:11,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:49:11,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:49:11,529 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 205 [2024-11-13 15:49:11,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 211 transitions, 614 flow. Second operand has 10 states, 10 states have (on average 159.5) internal successors, (1595), 10 states have internal predecessors, (1595), 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) [2024-11-13 15:49:11,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:11,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 205 [2024-11-13 15:49:11,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:49:12,310 INFO L124 PetriNetUnfolderBase]: 805/4193 cut-off events. [2024-11-13 15:49:12,311 INFO L125 PetriNetUnfolderBase]: For 621/654 co-relation queries the response was YES. [2024-11-13 15:49:12,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6475 conditions, 4193 events. 805/4193 cut-off events. For 621/654 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 39918 event pairs, 47 based on Foata normal form. 110/3996 useless extension candidates. Maximal degree in co-relation 3032. Up to 470 conditions per place. [2024-11-13 15:49:12,350 INFO L140 encePairwiseOnDemand]: 200/205 looper letters, 72 selfloop transitions, 7 changer transitions 0/218 dead transitions. [2024-11-13 15:49:12,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 218 transitions, 740 flow [2024-11-13 15:49:12,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:49:12,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 15:49:12,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1494 transitions. [2024-11-13 15:49:12,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8097560975609757 [2024-11-13 15:49:12,356 INFO L175 Difference]: Start difference. First operand has 195 places, 211 transitions, 614 flow. Second operand 9 states and 1494 transitions. [2024-11-13 15:49:12,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 218 transitions, 740 flow [2024-11-13 15:49:12,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 218 transitions, 720 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:49:12,364 INFO L231 Difference]: Finished difference. Result has 158 places, 162 transitions, 464 flow [2024-11-13 15:49:12,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=464, PETRI_PLACES=158, PETRI_TRANSITIONS=162} [2024-11-13 15:49:12,365 INFO L277 CegarLoopForPetriNet]: 190 programPoint places, -32 predicate places. [2024-11-13 15:49:12,366 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 162 transitions, 464 flow [2024-11-13 15:49:12,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 159.5) internal successors, (1595), 10 states have internal predecessors, (1595), 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) [2024-11-13 15:49:12,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:12,368 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:49:12,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 15:49:12,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_562cf1ab-40c8-4af7-93b9-6df97129efab/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 15:49:12,569 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:49:12,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:12,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1020721661, now seen corresponding path program 1 times [2024-11-13 15:49:12,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:12,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140535173] [2024-11-13 15:49:12,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:12,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:12,656 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-13 15:49:12,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:12,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140535173] [2024-11-13 15:49:12,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140535173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:49:12,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:49:12,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:49:12,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284708533] [2024-11-13 15:49:12,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:49:12,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:49:12,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:12,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:49:12,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:49:12,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 205 [2024-11-13 15:49:12,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 162 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2024-11-13 15:49:12,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:12,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 205 [2024-11-13 15:49:12,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:49:13,074 INFO L124 PetriNetUnfolderBase]: 260/1303 cut-off events. [2024-11-13 15:49:13,075 INFO L125 PetriNetUnfolderBase]: For 453/474 co-relation queries the response was YES. [2024-11-13 15:49:13,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2348 conditions, 1303 events. 260/1303 cut-off events. For 453/474 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8703 event pairs, 132 based on Foata normal form. 7/1218 useless extension candidates. Maximal degree in co-relation 2262. Up to 459 conditions per place. [2024-11-13 15:49:13,089 INFO L140 encePairwiseOnDemand]: 197/205 looper letters, 42 selfloop transitions, 12 changer transitions 0/176 dead transitions. [2024-11-13 15:49:13,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 176 transitions, 616 flow [2024-11-13 15:49:13,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:49:13,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:49:13,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 498 transitions. [2024-11-13 15:49:13,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8097560975609757 [2024-11-13 15:49:13,091 INFO L175 Difference]: Start difference. First operand has 158 places, 162 transitions, 464 flow. Second operand 3 states and 498 transitions. [2024-11-13 15:49:13,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 176 transitions, 616 flow [2024-11-13 15:49:13,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 176 transitions, 601 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-13 15:49:13,099 INFO L231 Difference]: Finished difference. Result has 157 places, 170 transitions, 547 flow [2024-11-13 15:49:13,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=547, PETRI_PLACES=157, PETRI_TRANSITIONS=170} [2024-11-13 15:49:13,101 INFO L277 CegarLoopForPetriNet]: 190 programPoint places, -33 predicate places. [2024-11-13 15:49:13,102 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 170 transitions, 547 flow [2024-11-13 15:49:13,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.66666666666666) internal successors, (467), 3 states have internal predecessors, (467), 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) [2024-11-13 15:49:13,102 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:13,103 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:49:13,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:49:13,103 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:49:13,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:13,104 INFO L85 PathProgramCache]: Analyzing trace with hash 352127227, now seen corresponding path program 1 times [2024-11-13 15:49:13,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:13,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556057987] [2024-11-13 15:49:13,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:13,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:13,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:13,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:13,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556057987] [2024-11-13 15:49:13,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556057987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:49:13,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:49:13,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:49:13,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011862575] [2024-11-13 15:49:13,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:49:13,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:49:13,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:13,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:49:13,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:49:13,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 205 [2024-11-13 15:49:13,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 170 transitions, 547 flow. Second operand has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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) [2024-11-13 15:49:13,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:13,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 205 [2024-11-13 15:49:13,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:49:13,519 INFO L124 PetriNetUnfolderBase]: 291/1375 cut-off events. [2024-11-13 15:49:13,519 INFO L125 PetriNetUnfolderBase]: For 1097/1132 co-relation queries the response was YES. [2024-11-13 15:49:13,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2802 conditions, 1375 events. 291/1375 cut-off events. For 1097/1132 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9326 event pairs, 134 based on Foata normal form. 9/1308 useless extension candidates. Maximal degree in co-relation 2719. Up to 501 conditions per place. [2024-11-13 15:49:13,534 INFO L140 encePairwiseOnDemand]: 197/205 looper letters, 49 selfloop transitions, 12 changer transitions 0/185 dead transitions. [2024-11-13 15:49:13,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 185 transitions, 736 flow [2024-11-13 15:49:13,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:49:13,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:49:13,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 499 transitions. [2024-11-13 15:49:13,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8113821138211382 [2024-11-13 15:49:13,537 INFO L175 Difference]: Start difference. First operand has 157 places, 170 transitions, 547 flow. Second operand 3 states and 499 transitions. [2024-11-13 15:49:13,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 185 transitions, 736 flow [2024-11-13 15:49:13,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 185 transitions, 708 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:49:13,544 INFO L231 Difference]: Finished difference. Result has 159 places, 178 transitions, 633 flow [2024-11-13 15:49:13,545 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=205, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=633, PETRI_PLACES=159, PETRI_TRANSITIONS=178} [2024-11-13 15:49:13,546 INFO L277 CegarLoopForPetriNet]: 190 programPoint places, -31 predicate places. [2024-11-13 15:49:13,546 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 178 transitions, 633 flow [2024-11-13 15:49:13,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.66666666666666) internal successors, (470), 3 states have internal predecessors, (470), 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) [2024-11-13 15:49:13,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:13,547 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 15:49:13,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:49:13,547 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-13 15:49:13,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:13,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1287108735, now seen corresponding path program 1 times [2024-11-13 15:49:13,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:13,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293283035] [2024-11-13 15:49:13,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:13,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:49:13,595 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:49:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:49:13,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:49:13,638 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:49:13,639 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-13 15:49:13,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-13 15:49:13,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-13 15:49:13,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-13 15:49:13,639 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-13 15:49:13,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-13 15:49:13,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-13 15:49:13,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-13 15:49:13,640 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-13 15:49:13,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-13 15:49:13,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-13 15:49:13,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-13 15:49:13,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-13 15:49:13,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-13 15:49:13,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-13 15:49:13,641 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-13 15:49:13,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:49:13,642 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:49:13,643 WARN L247 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 15:49:13,643 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-13 15:49:13,699 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 15:49:13,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 254 transitions, 535 flow [2024-11-13 15:49:13,793 INFO L124 PetriNetUnfolderBase]: 54/532 cut-off events. [2024-11-13 15:49:13,794 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-13 15:49:13,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 532 events. 54/532 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1974 event pairs, 1 based on Foata normal form. 0/446 useless extension candidates. Maximal degree in co-relation 359. Up to 16 conditions per place. [2024-11-13 15:49:13,801 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 254 transitions, 535 flow [2024-11-13 15:49:13,810 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 254 transitions, 535 flow [2024-11-13 15:49:13,811 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:49:13,813 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;@7cd35c26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:49:13,814 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-13 15:49:13,820 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:49:13,820 INFO L124 PetriNetUnfolderBase]: 2/62 cut-off events. [2024-11-13 15:49:13,820 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:49:13,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:13,821 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] [2024-11-13 15:49:13,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 15:49:13,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:13,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1519302360, now seen corresponding path program 1 times [2024-11-13 15:49:13,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:13,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730866644] [2024-11-13 15:49:13,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:13,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:13,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:13,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730866644] [2024-11-13 15:49:13,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730866644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:49:13,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:49:13,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:49:13,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641660462] [2024-11-13 15:49:13,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:49:13,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:49:13,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:13,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:49:13,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:49:13,914 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 254 [2024-11-13 15:49:13,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 254 transitions, 535 flow. Second operand has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2024-11-13 15:49:13,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:13,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 254 [2024-11-13 15:49:13,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:49:18,902 INFO L124 PetriNetUnfolderBase]: 8948/35263 cut-off events. [2024-11-13 15:49:18,902 INFO L125 PetriNetUnfolderBase]: For 952/952 co-relation queries the response was YES. [2024-11-13 15:49:19,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48501 conditions, 35263 events. 8948/35263 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 458693 event pairs, 5659 based on Foata normal form. 7668/39708 useless extension candidates. Maximal degree in co-relation 6249. Up to 12802 conditions per place. [2024-11-13 15:49:19,167 INFO L140 encePairwiseOnDemand]: 227/254 looper letters, 39 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2024-11-13 15:49:19,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 235 transitions, 579 flow [2024-11-13 15:49:19,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:49:19,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:49:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2024-11-13 15:49:19,170 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.863517060367454 [2024-11-13 15:49:19,170 INFO L175 Difference]: Start difference. First operand has 234 places, 254 transitions, 535 flow. Second operand 3 states and 658 transitions. [2024-11-13 15:49:19,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 235 transitions, 579 flow [2024-11-13 15:49:19,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 235 transitions, 579 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:49:19,176 INFO L231 Difference]: Finished difference. Result has 235 places, 229 transitions, 495 flow [2024-11-13 15:49:19,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=495, PETRI_PLACES=235, PETRI_TRANSITIONS=229} [2024-11-13 15:49:19,177 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, 1 predicate places. [2024-11-13 15:49:19,177 INFO L471 AbstractCegarLoop]: Abstraction has has 235 places, 229 transitions, 495 flow [2024-11-13 15:49:19,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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) [2024-11-13 15:49:19,178 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:19,178 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] [2024-11-13 15:49:19,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:49:19,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 15:49:19,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:19,179 INFO L85 PathProgramCache]: Analyzing trace with hash -577976199, now seen corresponding path program 1 times [2024-11-13 15:49:19,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:19,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244167526] [2024-11-13 15:49:19,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:19,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:19,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:19,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:19,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244167526] [2024-11-13 15:49:19,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244167526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:49:19,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:49:19,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:49:19,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767311067] [2024-11-13 15:49:19,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:49:19,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:49:19,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:19,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:49:19,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:49:19,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 254 [2024-11-13 15:49:19,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 229 transitions, 495 flow. Second operand has 6 states, 6 states have (on average 184.5) internal successors, (1107), 6 states have internal predecessors, (1107), 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) [2024-11-13 15:49:19,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:19,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 254 [2024-11-13 15:49:19,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:49:29,198 INFO L124 PetriNetUnfolderBase]: 19590/65780 cut-off events. [2024-11-13 15:49:29,198 INFO L125 PetriNetUnfolderBase]: For 1507/1507 co-relation queries the response was YES. [2024-11-13 15:49:29,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94705 conditions, 65780 events. 19590/65780 cut-off events. For 1507/1507 co-relation queries the response was YES. Maximal size of possible extension queue 1361. Compared 891422 event pairs, 7382 based on Foata normal form. 0/60125 useless extension candidates. Maximal degree in co-relation 89186. Up to 20118 conditions per place. [2024-11-13 15:49:29,663 INFO L140 encePairwiseOnDemand]: 248/254 looper letters, 112 selfloop transitions, 6 changer transitions 0/300 dead transitions. [2024-11-13 15:49:29,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 300 transitions, 873 flow [2024-11-13 15:49:29,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:49:29,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:49:29,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1216 transitions. [2024-11-13 15:49:29,666 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7979002624671916 [2024-11-13 15:49:29,666 INFO L175 Difference]: Start difference. First operand has 235 places, 229 transitions, 495 flow. Second operand 6 states and 1216 transitions. [2024-11-13 15:49:29,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 300 transitions, 873 flow [2024-11-13 15:49:29,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 300 transitions, 871 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:49:29,678 INFO L231 Difference]: Finished difference. Result has 238 places, 228 transitions, 503 flow [2024-11-13 15:49:29,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=503, PETRI_PLACES=238, PETRI_TRANSITIONS=228} [2024-11-13 15:49:29,679 INFO L277 CegarLoopForPetriNet]: 234 programPoint places, 4 predicate places. [2024-11-13 15:49:29,679 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 228 transitions, 503 flow [2024-11-13 15:49:29,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.5) internal successors, (1107), 6 states have internal predecessors, (1107), 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) [2024-11-13 15:49:29,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:49:29,680 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:49:29,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:49:29,680 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 15:49:29,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:49:29,680 INFO L85 PathProgramCache]: Analyzing trace with hash 782613276, now seen corresponding path program 1 times [2024-11-13 15:49:29,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:49:29,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815630692] [2024-11-13 15:49:29,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:49:29,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:49:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:49:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:49:29,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:49:29,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815630692] [2024-11-13 15:49:29,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815630692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:49:29,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:49:29,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:49:29,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796986023] [2024-11-13 15:49:29,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:49:29,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:49:29,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:49:29,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:49:29,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:49:29,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 254 [2024-11-13 15:49:29,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 228 transitions, 503 flow. Second operand has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 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) [2024-11-13 15:49:29,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:49:29,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 254 [2024-11-13 15:49:29,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand