./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:02:30,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:02:30,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:02:30,754 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:02:30,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:02:30,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:02:30,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:02:30,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:02:30,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:02:30,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:02:30,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:02:30,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:02:30,801 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:02:30,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:02:30,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:02:30,804 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:02:30,804 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:02:30,805 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:02:30,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:02:30,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:02:30,806 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:02:30,807 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:02:30,807 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:02:30,808 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:02:30,808 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:02:30,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:02:30,809 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:02:30,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:02:30,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:02:30,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:02:30,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:30,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:02:30,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:02:30,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:02:30,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:02:30,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:02:30,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:02:30,815 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:02:30,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:02:30,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:02:30,816 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:02:30,816 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_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d [2023-11-06 22:02:31,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:02:31,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:02:31,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:02:31,159 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:02:31,160 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:02:31,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2023-11-06 22:02:34,327 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:02:34,578 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:02:34,578 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2023-11-06 22:02:34,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/data/ab011ecb4/f01691d0c15a4e91a4b7adeded4021f7/FLAG5c981d13a [2023-11-06 22:02:34,610 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/data/ab011ecb4/f01691d0c15a4e91a4b7adeded4021f7 [2023-11-06 22:02:34,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:02:34,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:02:34,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:34,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:02:34,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:02:34,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:34" (1/1) ... [2023-11-06 22:02:34,623 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c9da43b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:34, skipping insertion in model container [2023-11-06 22:02:34,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:34" (1/1) ... [2023-11-06 22:02:34,683 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:02:35,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:35,103 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:02:35,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:35,234 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:02:35,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35 WrapperNode [2023-11-06 22:02:35,235 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:35,236 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:35,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:02:35,237 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:02:35,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (1/1) ... [2023-11-06 22:02:35,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (1/1) ... [2023-11-06 22:02:35,356 INFO L138 Inliner]: procedures = 172, calls = 22, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 145 [2023-11-06 22:02:35,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:35,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:02:35,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:02:35,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:02:35,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (1/1) ... [2023-11-06 22:02:35,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (1/1) ... [2023-11-06 22:02:35,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (1/1) ... [2023-11-06 22:02:35,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (1/1) ... [2023-11-06 22:02:35,400 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (1/1) ... [2023-11-06 22:02:35,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (1/1) ... [2023-11-06 22:02:35,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (1/1) ... [2023-11-06 22:02:35,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (1/1) ... [2023-11-06 22:02:35,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:02:35,426 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:02:35,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:02:35,427 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:02:35,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (1/1) ... [2023-11-06 22:02:35,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:35,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:35,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:02:35,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:02:35,533 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-06 22:02:35,533 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-06 22:02:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:02:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:02:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:02:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:02:35,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:02:35,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:02:35,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:02:35,538 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:02:35,679 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:02:35,681 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:02:35,986 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:02:36,170 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:02:36,170 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:02:36,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:36 BoogieIcfgContainer [2023-11-06 22:02:36,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:02:36,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:02:36,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:02:36,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:02:36,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:02:34" (1/3) ... [2023-11-06 22:02:36,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc92597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:36, skipping insertion in model container [2023-11-06 22:02:36,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:35" (2/3) ... [2023-11-06 22:02:36,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc92597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:36, skipping insertion in model container [2023-11-06 22:02:36,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:36" (3/3) ... [2023-11-06 22:02:36,193 INFO L112 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2023-11-06 22:02:36,206 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:02:36,214 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:02:36,214 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-06 22:02:36,214 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:02:36,287 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:02:36,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 76 transitions, 156 flow [2023-11-06 22:02:36,391 INFO L124 PetriNetUnfolderBase]: 2/75 cut-off events. [2023-11-06 22:02:36,392 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:02:36,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 75 events. 2/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 97 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2023-11-06 22:02:36,397 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 76 transitions, 156 flow [2023-11-06 22:02:36,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 75 transitions, 153 flow [2023-11-06 22:02:36,406 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:02:36,423 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 75 transitions, 153 flow [2023-11-06 22:02:36,426 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 75 transitions, 153 flow [2023-11-06 22:02:36,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 75 transitions, 153 flow [2023-11-06 22:02:36,448 INFO L124 PetriNetUnfolderBase]: 2/75 cut-off events. [2023-11-06 22:02:36,448 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:02:36,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 75 events. 2/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 97 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2023-11-06 22:02:36,451 INFO L119 LiptonReduction]: Number of co-enabled transitions 1554 [2023-11-06 22:02:38,222 INFO L134 LiptonReduction]: Checked pairs total: 6348 [2023-11-06 22:02:38,223 INFO L136 LiptonReduction]: Total number of compositions: 46 [2023-11-06 22:02:38,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:02:38,260 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4ec12468, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:02:38,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-06 22:02:38,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:02:38,263 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-06 22:02:38,263 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:02:38,263 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:02:38,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 22:02:38,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-06 22:02:38,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:38,272 INFO L85 PathProgramCache]: Analyzing trace with hash 553680, now seen corresponding path program 1 times [2023-11-06 22:02:38,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:38,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730091459] [2023-11-06 22:02:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:38,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:38,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:38,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730091459] [2023-11-06 22:02:38,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730091459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:38,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:38,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:02:38,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160817135] [2023-11-06 22:02:38,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:38,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:02:38,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:38,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:02:38,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:02:38,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 122 [2023-11-06 22:02:38,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 77 flow. Second operand has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 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) [2023-11-06 22:02:38,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:02:38,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 122 [2023-11-06 22:02:38,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:02:38,649 INFO L124 PetriNetUnfolderBase]: 21/65 cut-off events. [2023-11-06 22:02:38,649 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:02:38,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 65 events. 21/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 164 event pairs, 20 based on Foata normal form. 5/63 useless extension candidates. Maximal degree in co-relation 112. Up to 52 conditions per place. [2023-11-06 22:02:38,652 INFO L140 encePairwiseOnDemand]: 106/122 looper letters, 11 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-11-06 22:02:38,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 21 transitions, 67 flow [2023-11-06 22:02:38,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:02:38,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:02:38,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 133 transitions. [2023-11-06 22:02:38,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5450819672131147 [2023-11-06 22:02:38,669 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 133 transitions. [2023-11-06 22:02:38,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 133 transitions. [2023-11-06 22:02:38,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:02:38,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 133 transitions. [2023-11-06 22:02:38,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 66.5) internal successors, (133), 2 states have internal predecessors, (133), 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) [2023-11-06 22:02:38,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2023-11-06 22:02:38,689 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 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) [2023-11-06 22:02:38,691 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 77 flow. Second operand 2 states and 133 transitions. [2023-11-06 22:02:38,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 21 transitions, 67 flow [2023-11-06 22:02:38,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 21 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:02:38,696 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 44 flow [2023-11-06 22:02:38,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2023-11-06 22:02:38,703 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -15 predicate places. [2023-11-06 22:02:38,703 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 44 flow [2023-11-06 22:02:38,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 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) [2023-11-06 22:02:38,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:02:38,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:02:38,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:02:38,705 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-06 22:02:38,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:38,706 INFO L85 PathProgramCache]: Analyzing trace with hash 17164835, now seen corresponding path program 1 times [2023-11-06 22:02:38,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:38,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4897138] [2023-11-06 22:02:38,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:38,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:38,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:38,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:38,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4897138] [2023-11-06 22:02:38,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4897138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:38,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:38,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:38,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083189099] [2023-11-06 22:02:38,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:38,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:38,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:38,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:38,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:38,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 122 [2023-11-06 22:02:38,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 21 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2023-11-06 22:02:38,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:02:38,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 122 [2023-11-06 22:02:38,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:02:38,878 INFO L124 PetriNetUnfolderBase]: 33/107 cut-off events. [2023-11-06 22:02:38,878 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:02:38,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 107 events. 33/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 377 event pairs, 9 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 187. Up to 52 conditions per place. [2023-11-06 22:02:38,880 INFO L140 encePairwiseOnDemand]: 118/122 looper letters, 16 selfloop transitions, 3 changer transitions 3/30 dead transitions. [2023-11-06 22:02:38,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 30 transitions, 106 flow [2023-11-06 22:02:38,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:38,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:02:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2023-11-06 22:02:38,883 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4726775956284153 [2023-11-06 22:02:38,883 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 173 transitions. [2023-11-06 22:02:38,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 173 transitions. [2023-11-06 22:02:38,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:02:38,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 173 transitions. [2023-11-06 22:02:38,885 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2023-11-06 22:02:38,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2023-11-06 22:02:38,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2023-11-06 22:02:38,888 INFO L175 Difference]: Start difference. First operand has 24 places, 21 transitions, 44 flow. Second operand 3 states and 173 transitions. [2023-11-06 22:02:38,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 30 transitions, 106 flow [2023-11-06 22:02:38,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 30 transitions, 106 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:02:38,889 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 66 flow [2023-11-06 22:02:38,890 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2023-11-06 22:02:38,891 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -11 predicate places. [2023-11-06 22:02:38,891 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 66 flow [2023-11-06 22:02:38,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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) [2023-11-06 22:02:38,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:02:38,892 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:02:38,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:02:38,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-06 22:02:38,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:38,893 INFO L85 PathProgramCache]: Analyzing trace with hash -684693973, now seen corresponding path program 1 times [2023-11-06 22:02:38,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:38,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162492472] [2023-11-06 22:02:38,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:38,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:38,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:38,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162492472] [2023-11-06 22:02:38,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162492472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:38,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:38,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:38,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677526835] [2023-11-06 22:02:38,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:38,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:38,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:38,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:38,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:38,957 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 122 [2023-11-06 22:02:38,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2023-11-06 22:02:38,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:02:38,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 122 [2023-11-06 22:02:38,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:02:39,025 INFO L124 PetriNetUnfolderBase]: 39/115 cut-off events. [2023-11-06 22:02:39,025 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-06 22:02:39,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 115 events. 39/115 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 419 event pairs, 26 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 240. Up to 84 conditions per place. [2023-11-06 22:02:39,027 INFO L140 encePairwiseOnDemand]: 118/122 looper letters, 14 selfloop transitions, 3 changer transitions 3/29 dead transitions. [2023-11-06 22:02:39,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 29 transitions, 122 flow [2023-11-06 22:02:39,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:39,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:02:39,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 161 transitions. [2023-11-06 22:02:39,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43989071038251365 [2023-11-06 22:02:39,029 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 161 transitions. [2023-11-06 22:02:39,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 161 transitions. [2023-11-06 22:02:39,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:02:39,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 161 transitions. [2023-11-06 22:02:39,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2023-11-06 22:02:39,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2023-11-06 22:02:39,033 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2023-11-06 22:02:39,033 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 66 flow. Second operand 3 states and 161 transitions. [2023-11-06 22:02:39,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 29 transitions, 122 flow [2023-11-06 22:02:39,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 29 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:02:39,035 INFO L231 Difference]: Finished difference. Result has 29 places, 25 transitions, 79 flow [2023-11-06 22:02:39,036 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=25} [2023-11-06 22:02:39,036 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -10 predicate places. [2023-11-06 22:02:39,037 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 79 flow [2023-11-06 22:02:39,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2023-11-06 22:02:39,037 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:02:39,038 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:39,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:02:39,038 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-06 22:02:39,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:39,039 INFO L85 PathProgramCache]: Analyzing trace with hash 256915515, now seen corresponding path program 1 times [2023-11-06 22:02:39,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:39,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238068659] [2023-11-06 22:02:39,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:39,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:39,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:39,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238068659] [2023-11-06 22:02:39,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238068659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:39,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:39,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:39,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532560425] [2023-11-06 22:02:39,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:39,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:39,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:39,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:39,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:39,090 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 122 [2023-11-06 22:02:39,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2023-11-06 22:02:39,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:02:39,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 122 [2023-11-06 22:02:39,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:02:39,147 INFO L124 PetriNetUnfolderBase]: 66/180 cut-off events. [2023-11-06 22:02:39,147 INFO L125 PetriNetUnfolderBase]: For 59/64 co-relation queries the response was YES. [2023-11-06 22:02:39,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 180 events. 66/180 cut-off events. For 59/64 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 734 event pairs, 7 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 420. Up to 90 conditions per place. [2023-11-06 22:02:39,149 INFO L140 encePairwiseOnDemand]: 118/122 looper letters, 16 selfloop transitions, 4 changer transitions 9/36 dead transitions. [2023-11-06 22:02:39,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 170 flow [2023-11-06 22:02:39,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:39,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:02:39,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2023-11-06 22:02:39,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46994535519125685 [2023-11-06 22:02:39,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2023-11-06 22:02:39,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2023-11-06 22:02:39,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:02:39,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2023-11-06 22:02:39,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2023-11-06 22:02:39,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2023-11-06 22:02:39,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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) [2023-11-06 22:02:39,156 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 79 flow. Second operand 3 states and 172 transitions. [2023-11-06 22:02:39,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 170 flow [2023-11-06 22:02:39,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 36 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:02:39,159 INFO L231 Difference]: Finished difference. Result has 32 places, 26 transitions, 104 flow [2023-11-06 22:02:39,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2023-11-06 22:02:39,160 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -7 predicate places. [2023-11-06 22:02:39,160 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 104 flow [2023-11-06 22:02:39,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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) [2023-11-06 22:02:39,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:02:39,161 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:39,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:02:39,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-06 22:02:39,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:39,162 INFO L85 PathProgramCache]: Analyzing trace with hash -916294989, now seen corresponding path program 1 times [2023-11-06 22:02:39,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:39,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183669470] [2023-11-06 22:02:39,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:39,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:02:39,184 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:02:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:02:39,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:02:39,235 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:02:39,236 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2023-11-06 22:02:39,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2023-11-06 22:02:39,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2023-11-06 22:02:39,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2023-11-06 22:02:39,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2023-11-06 22:02:39,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2023-11-06 22:02:39,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2023-11-06 22:02:39,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2023-11-06 22:02:39,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2023-11-06 22:02:39,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2023-11-06 22:02:39,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2023-11-06 22:02:39,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2023-11-06 22:02:39,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2023-11-06 22:02:39,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2023-11-06 22:02:39,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2023-11-06 22:02:39,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2023-11-06 22:02:39,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2023-11-06 22:02:39,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2023-11-06 22:02:39,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 28 remaining) [2023-11-06 22:02:39,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2023-11-06 22:02:39,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2023-11-06 22:02:39,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2023-11-06 22:02:39,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2023-11-06 22:02:39,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2023-11-06 22:02:39,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2023-11-06 22:02:39,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2023-11-06 22:02:39,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2023-11-06 22:02:39,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2023-11-06 22:02:39,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:02:39,259 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 22:02:39,271 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:02:39,271 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:02:39,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:02:39 BasicIcfg [2023-11-06 22:02:39,300 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:02:39,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:02:39,300 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:02:39,301 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:02:39,301 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:36" (3/4) ... [2023-11-06 22:02:39,304 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:02:39,305 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:02:39,306 INFO L158 Benchmark]: Toolchain (without parser) took 4691.89ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 87.4MB in the beginning and 136.5MB in the end (delta: -49.1MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-11-06 22:02:39,306 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 136.3MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:02:39,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 620.00ms. Allocated memory is still 136.3MB. Free memory was 87.0MB in the beginning and 67.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:02:39,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.85ms. Allocated memory is still 136.3MB. Free memory was 67.7MB in the beginning and 106.5MB in the end (delta: -38.8MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2023-11-06 22:02:39,308 INFO L158 Benchmark]: Boogie Preprocessor took 68.82ms. Allocated memory is still 136.3MB. Free memory was 106.5MB in the beginning and 104.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:02:39,308 INFO L158 Benchmark]: RCFGBuilder took 753.01ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 104.8MB in the beginning and 139.3MB in the end (delta: -34.5MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-11-06 22:02:39,309 INFO L158 Benchmark]: TraceAbstraction took 3117.08ms. Allocated memory is still 197.1MB. Free memory was 138.3MB in the beginning and 136.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2023-11-06 22:02:39,309 INFO L158 Benchmark]: Witness Printer took 4.88ms. Allocated memory is still 197.1MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:02:39,315 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 136.3MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 620.00ms. Allocated memory is still 136.3MB. Free memory was 87.0MB in the beginning and 67.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.85ms. Allocated memory is still 136.3MB. Free memory was 67.7MB in the beginning and 106.5MB in the end (delta: -38.8MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.82ms. Allocated memory is still 136.3MB. Free memory was 106.5MB in the beginning and 104.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 753.01ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 104.8MB in the beginning and 139.3MB in the end (delta: -34.5MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3117.08ms. Allocated memory is still 197.1MB. Free memory was 138.3MB in the beginning and 136.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. * Witness Printer took 4.88ms. Allocated memory is still 197.1MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 77 PlacesBefore, 39 PlacesAfterwards, 75 TransitionsBefore, 37 TransitionsAfterwards, 1554 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 46 TotalNumberOfCompositions, 6348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2980, independent: 2699, independent conditional: 0, independent unconditional: 2699, dependent: 281, dependent conditional: 0, dependent unconditional: 281, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 815, independent: 767, independent conditional: 0, independent unconditional: 767, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2980, independent: 1932, independent conditional: 0, independent unconditional: 1932, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 815, unknown conditional: 0, unknown unconditional: 815] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 135, Positive conditional cache size: 0, Positive unconditional cache size: 135, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 724]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int mThread=0; [L689] 0 int start_main=0; [L690] 0 int mStartLock=0; [L691] 0 int __COUNT__ =0; [L733] 0 pthread_t t; [L734] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [__COUNT__=0, mStartLock=0, mThread=0, pthread_create(&t, 0, thr1, 0)=-1, start_main=0, t={3:0}] [L710] 1 int PR_CreateThread__RES = 1; [L711] CALL 1 __VERIFIER_atomic_acquire() [L694] EXPR 1 mStartLock==0 [L694] CALL 1 assume_abort_if_not(mStartLock==0) [L3] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(mStartLock==0) [L695] 1 mStartLock = 1 [L711] RET 1 __VERIFIER_atomic_acquire() [L712] 1 start_main=1 VAL [PR_CreateThread__RES=1, __COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=1, mThread=0, start_main=1, start_main=1=52] [L735] CALL 0 thr2(0) [L724] 0 int self = mThread; VAL [__COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=1, mThread=0, start_main=1] [L712] 1 start_main=1 VAL [PR_CreateThread__RES=1, __COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=1, mThread=0, start_main=1] [L713] CALL 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L704] 1 __COUNT__ == 0 [L704] COND TRUE 1 __COUNT__ == 0 [L705] 1 mThread = PR_CreateThread__RES [L706] EXPR 1 __COUNT__ + 1 [L706] 1 __COUNT__ = __COUNT__ + 1 [L713] RET 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L724] 0 int self = mThread; VAL [__COUNT__=1, arg={0:0}, arg={0:0}, mStartLock=1, mThread=1, start_main=1] Now there is a data race on ~mThread~0 between C: mThread = PR_CreateThread__RES [705] and C: int self = mThread; [724] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 98 locations, 28 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 12 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=4, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:02:39,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6681c91-fa38-4339-a605-8dece833b95f/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE