./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/25_stack_longest-2-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack_longest-2-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU --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 93834d0ed7ae29f55a5cf3676a6d16497c83e10891cd8a2ab18e9898a90eaebc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:10:07,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:10:07,384 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:10:07,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:10:07,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:10:07,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:10:07,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:10:07,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:10:07,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:10:07,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:10:07,428 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:10:07,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:10:07,428 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:10:07,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:10:07,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:10:07,430 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:10:07,430 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:10:07,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:10:07,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:10:07,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:10:07,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:10:07,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:10:07,434 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:10:07,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:10:07,435 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:10:07,435 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:10:07,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:10:07,436 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:10:07,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:10:07,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:10:07,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:10:07,437 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:07,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:10:07,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:10:07,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:10:07,446 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:10:07,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:10:07,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:10:07,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:10:07,447 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:10:07,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:10:07,448 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93834d0ed7ae29f55a5cf3676a6d16497c83e10891cd8a2ab18e9898a90eaebc [2024-10-31 22:10:07,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:10:07,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:10:07,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:10:07,778 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:10:07,778 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:10:07,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-ext/25_stack_longest-2-race.i Unable to find full path for "g++" [2024-10-31 22:10:09,957 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:10:10,202 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:10:10,203 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/sv-benchmarks/c/pthread-ext/25_stack_longest-2-race.i [2024-10-31 22:10:10,219 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/data/98bc482db/59c068df826f4eec9d7ae1c994248f00/FLAG3c1af50d1 [2024-10-31 22:10:10,235 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/data/98bc482db/59c068df826f4eec9d7ae1c994248f00 [2024-10-31 22:10:10,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:10:10,239 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:10:10,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:10,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:10:10,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:10:10,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:10,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d172074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10, skipping insertion in model container [2024-10-31 22:10:10,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:10,299 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:10:10,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:10,817 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:10:10,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:10:10,968 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:10:10,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10 WrapperNode [2024-10-31 22:10:10,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:10:10,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:10,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:10:10,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:10:10,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:11,010 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:11,101 INFO L138 Inliner]: procedures = 176, calls = 32, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 2214 [2024-10-31 22:10:11,101 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:10:11,102 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:10:11,102 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:10:11,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:10:11,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:11,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:11,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:11,122 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:11,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:11,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:11,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:11,239 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:11,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:10:11,253 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:10:11,253 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:10:11,253 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:10:11,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (1/1) ... [2024-10-31 22:10:11,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:10:11,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:10:11,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:10:11,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0748273a-fb8a-46de-8a19-17071c9a81b6/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:10:11,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:10:11,333 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-31 22:10:11,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-31 22:10:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:10:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:10:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:10:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:10:11,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:10:11,337 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:10:11,497 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:10:11,499 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:10:14,161 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:10:14,161 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:10:14,630 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:10:14,630 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:10:14,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:14 BoogieIcfgContainer [2024-10-31 22:10:14,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:10:14,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:10:14,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:10:14,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:10:14,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:10:10" (1/3) ... [2024-10-31 22:10:14,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f48ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:14, skipping insertion in model container [2024-10-31 22:10:14,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:10:10" (2/3) ... [2024-10-31 22:10:14,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f48ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:10:14, skipping insertion in model container [2024-10-31 22:10:14,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:10:14" (3/3) ... [2024-10-31 22:10:14,644 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack_longest-2-race.i [2024-10-31 22:10:14,665 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:10:14,666 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-31 22:10:14,666 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:10:14,881 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:10:14,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 2076 places, 2080 transitions, 4164 flow [2024-10-31 22:10:16,519 INFO L124 PetriNetUnfolderBase]: 8/2089 cut-off events. [2024-10-31 22:10:16,519 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:10:16,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2093 conditions, 2089 events. 8/2089 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 234 event pairs, 0 based on Foata normal form. 0/2053 useless extension candidates. Maximal degree in co-relation 1948. Up to 4 conditions per place. [2024-10-31 22:10:16,528 INFO L82 GeneralOperation]: Start removeDead. Operand has 2076 places, 2080 transitions, 4164 flow [2024-10-31 22:10:16,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 2076 places, 2080 transitions, 4164 flow [2024-10-31 22:10:16,561 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:10:16,568 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;@7a49f9c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:10:16,569 INFO L334 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-10-31 22:10:17,279 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:10:17,279 INFO L124 PetriNetUnfolderBase]: 1/1951 cut-off events. [2024-10-31 22:10:17,279 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:10:17,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:17,282 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:17,285 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-10-31 22:10:17,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:17,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1376906466, now seen corresponding path program 1 times [2024-10-31 22:10:17,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:17,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017792673] [2024-10-31 22:10:17,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:17,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:29,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:29,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017792673] [2024-10-31 22:10:29,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017792673] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:29,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:29,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:10:29,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641127517] [2024-10-31 22:10:29,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:29,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:10:29,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:29,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:10:29,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:10:29,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 2052 out of 2080 [2024-10-31 22:10:29,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2076 places, 2080 transitions, 4164 flow. Second operand has 2 states, 2 states have (on average 2053.0) internal successors, (4106), 2 states have internal predecessors, (4106), 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) [2024-10-31 22:10:29,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:29,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2052 of 2080 [2024-10-31 22:10:29,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:31,117 INFO L124 PetriNetUnfolderBase]: 4/2061 cut-off events. [2024-10-31 22:10:31,118 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:10:31,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 2061 events. 4/2061 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 140 event pairs, 0 based on Foata normal form. 8/2054 useless extension candidates. Maximal degree in co-relation 124. Up to 10 conditions per place. [2024-10-31 22:10:31,129 INFO L140 encePairwiseOnDemand]: 2061/2080 looper letters, 9 selfloop transitions, 0 changer transitions 0/2057 dead transitions. [2024-10-31 22:10:31,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2057 places, 2057 transitions, 4136 flow [2024-10-31 22:10:31,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:10:31,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:10:31,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4132 transitions. [2024-10-31 22:10:31,167 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9932692307692308 [2024-10-31 22:10:31,170 INFO L175 Difference]: Start difference. First operand has 2076 places, 2080 transitions, 4164 flow. Second operand 2 states and 4132 transitions. [2024-10-31 22:10:31,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2057 places, 2057 transitions, 4136 flow [2024-10-31 22:10:31,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2057 places, 2057 transitions, 4136 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:10:31,234 INFO L231 Difference]: Finished difference. Result has 2057 places, 2057 transitions, 4118 flow [2024-10-31 22:10:31,241 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=2080, PETRI_DIFFERENCE_MINUEND_FLOW=4118, PETRI_DIFFERENCE_MINUEND_PLACES=2056, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2057, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=4118, PETRI_PLACES=2057, PETRI_TRANSITIONS=2057} [2024-10-31 22:10:31,248 INFO L277 CegarLoopForPetriNet]: 2076 programPoint places, -19 predicate places. [2024-10-31 22:10:31,248 INFO L471 AbstractCegarLoop]: Abstraction has has 2057 places, 2057 transitions, 4118 flow [2024-10-31 22:10:31,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2053.0) internal successors, (4106), 2 states have internal predecessors, (4106), 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) [2024-10-31 22:10:31,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:31,255 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:31,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:10:31,256 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-10-31 22:10:31,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:31,260 INFO L85 PathProgramCache]: Analyzing trace with hash 357339301, now seen corresponding path program 1 times [2024-10-31 22:10:31,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:31,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719270690] [2024-10-31 22:10:31,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:31,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:10:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:10:34,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:10:34,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:10:34,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719270690] [2024-10-31 22:10:34,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719270690] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:10:34,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:10:34,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:10:34,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404757422] [2024-10-31 22:10:34,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:10:34,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:10:34,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:10:34,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:10:34,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:10:34,911 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 2048 out of 2080 [2024-10-31 22:10:34,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 2057 places, 2057 transitions, 4118 flow. Second operand has 3 states, 3 states have (on average 2049.3333333333335) internal successors, (6148), 3 states have internal predecessors, (6148), 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) [2024-10-31 22:10:34,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:10:34,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2048 of 2080 [2024-10-31 22:10:34,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:10:36,273 INFO L124 PetriNetUnfolderBase]: 6/2149 cut-off events. [2024-10-31 22:10:36,273 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:10:36,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2174 conditions, 2149 events. 6/2149 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 434 event pairs, 0 based on Foata normal form. 0/2124 useless extension candidates. Maximal degree in co-relation 2170. Up to 11 conditions per place. [2024-10-31 22:10:36,283 INFO L140 encePairwiseOnDemand]: 2077/2080 looper letters, 17 selfloop transitions, 2 changer transitions 0/2063 dead transitions. [2024-10-31 22:10:36,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 2058 places, 2063 transitions, 4168 flow [2024-10-31 22:10:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:10:36,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:10:36,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6164 transitions. [2024-10-31 22:10:36,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9878205128205129 [2024-10-31 22:10:36,300 INFO L175 Difference]: Start difference. First operand has 2057 places, 2057 transitions, 4118 flow. Second operand 3 states and 6164 transitions. [2024-10-31 22:10:36,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 2058 places, 2063 transitions, 4168 flow [2024-10-31 22:10:36,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 2058 places, 2063 transitions, 4168 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:10:36,346 INFO L231 Difference]: Finished difference. Result has 2058 places, 2056 transitions, 4120 flow [2024-10-31 22:10:36,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=2080, PETRI_DIFFERENCE_MINUEND_FLOW=4116, PETRI_DIFFERENCE_MINUEND_PLACES=2056, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2054, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=4120, PETRI_PLACES=2058, PETRI_TRANSITIONS=2056} [2024-10-31 22:10:36,350 INFO L277 CegarLoopForPetriNet]: 2076 programPoint places, -18 predicate places. [2024-10-31 22:10:36,351 INFO L471 AbstractCegarLoop]: Abstraction has has 2058 places, 2056 transitions, 4120 flow [2024-10-31 22:10:36,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2049.3333333333335) internal successors, (6148), 3 states have internal predecessors, (6148), 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) [2024-10-31 22:10:36,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:10:36,358 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:10:36,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:10:36,359 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-10-31 22:10:36,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:10:36,360 INFO L85 PathProgramCache]: Analyzing trace with hash 996999696, now seen corresponding path program 1 times [2024-10-31 22:10:36,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:10:36,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382092739] [2024-10-31 22:10:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:10:36,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms