./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx --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 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:20:27,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:20:27,129 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:20:27,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:20:27,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:20:27,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:20:27,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:20:27,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:20:27,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:20:27,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:20:27,168 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:20:27,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:20:27,169 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:20:27,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:20:27,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:20:27,171 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:20:27,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:20:27,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:20:27,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:20:27,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:20:27,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:20:27,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:20:27,174 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:20:27,175 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:20:27,175 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:20:27,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:20:27,176 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:20:27,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:20:27,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:20:27,178 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:20:27,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:27,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:20:27,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:20:27,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:20:27,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:20:27,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:20:27,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:20:27,182 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:20:27,182 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:20:27,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:20:27,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:20:27,184 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_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29686c593874684b7702dd35cbbbd25416d0d0dde1b2c7e324de66da32235cfd [2023-11-21 22:20:27,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:20:27,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:20:27,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:20:27,543 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:20:27,544 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:20:27,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i [2023-11-21 22:20:30,958 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:20:31,278 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:20:31,279 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/sv-benchmarks/c/goblint-regression/04-mutex_42-trylock_2mutex.i [2023-11-21 22:20:31,299 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/data/027843af2/2deea7f4fcaf4bd78d60a308942e7062/FLAGf267922af [2023-11-21 22:20:31,319 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/data/027843af2/2deea7f4fcaf4bd78d60a308942e7062 [2023-11-21 22:20:31,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:20:31,329 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:20:31,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:31,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:20:31,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:20:31,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:31" (1/1) ... [2023-11-21 22:20:31,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fde88a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:31, skipping insertion in model container [2023-11-21 22:20:31,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:31" (1/1) ... [2023-11-21 22:20:31,419 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:20:31,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:31,971 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:20:32,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:32,110 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:20:32,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32 WrapperNode [2023-11-21 22:20:32,111 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:32,112 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:32,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:20:32,113 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:20:32,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (1/1) ... [2023-11-21 22:20:32,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (1/1) ... [2023-11-21 22:20:32,213 INFO L138 Inliner]: procedures = 164, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 71 [2023-11-21 22:20:32,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:32,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:20:32,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:20:32,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:20:32,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (1/1) ... [2023-11-21 22:20:32,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (1/1) ... [2023-11-21 22:20:32,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (1/1) ... [2023-11-21 22:20:32,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (1/1) ... [2023-11-21 22:20:32,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (1/1) ... [2023-11-21 22:20:32,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (1/1) ... [2023-11-21 22:20:32,250 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (1/1) ... [2023-11-21 22:20:32,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (1/1) ... [2023-11-21 22:20:32,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:20:32,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:20:32,261 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:20:32,261 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:20:32,262 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (1/1) ... [2023-11-21 22:20:32,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:32,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:32,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:32,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:20:32,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:20:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:20:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:20:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:20:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:20:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-21 22:20:32,356 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-21 22:20:32,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:20:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-11-21 22:20:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:20:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:20:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:20:32,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:20:32,360 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:20:32,514 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:20:32,516 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:20:32,804 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:20:32,882 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:20:32,882 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:20:32,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:32 BoogieIcfgContainer [2023-11-21 22:20:32,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:20:32,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:20:32,888 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:20:32,893 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:20:32,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:20:31" (1/3) ... [2023-11-21 22:20:32,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ff7eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:32, skipping insertion in model container [2023-11-21 22:20:32,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:32" (2/3) ... [2023-11-21 22:20:32,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ff7eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:32, skipping insertion in model container [2023-11-21 22:20:32,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:32" (3/3) ... [2023-11-21 22:20:32,896 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_42-trylock_2mutex.i [2023-11-21 22:20:32,908 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:20:32,922 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:20:32,922 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-21 22:20:32,922 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:20:32,987 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-21 22:20:33,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions, 209 flow [2023-11-21 22:20:33,150 INFO L124 PetriNetUnfolderBase]: 2/100 cut-off events. [2023-11-21 22:20:33,150 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:20:33,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 100 events. 2/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 103 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-11-21 22:20:33,158 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 101 transitions, 209 flow [2023-11-21 22:20:33,168 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 92 transitions, 187 flow [2023-11-21 22:20:33,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:20:33,199 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=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;@4380ee8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:20:33,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-21 22:20:33,229 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:20:33,230 INFO L124 PetriNetUnfolderBase]: 0/33 cut-off events. [2023-11-21 22:20:33,230 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:20:33,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:33,231 INFO L208 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] [2023-11-21 22:20:33,232 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 22:20:33,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:33,240 INFO L85 PathProgramCache]: Analyzing trace with hash 236472482, now seen corresponding path program 1 times [2023-11-21 22:20:33,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:33,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968003247] [2023-11-21 22:20:33,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:33,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:33,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:33,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:33,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968003247] [2023-11-21 22:20:33,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968003247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:33,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:33,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:33,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886231118] [2023-11-21 22:20:33,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:33,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:33,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:33,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:33,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:33,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 101 [2023-11-21 22:20:33,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 92 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2023-11-21 22:20:33,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:33,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 101 [2023-11-21 22:20:33,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:33,954 INFO L124 PetriNetUnfolderBase]: 56/395 cut-off events. [2023-11-21 22:20:33,956 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:20:33,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 395 events. 56/395 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2024 event pairs, 37 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 497. Up to 98 conditions per place. [2023-11-21 22:20:33,968 INFO L140 encePairwiseOnDemand]: 95/101 looper letters, 21 selfloop transitions, 4 changer transitions 0/100 dead transitions. [2023-11-21 22:20:33,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 100 transitions, 253 flow [2023-11-21 22:20:33,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:33,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:33,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2023-11-21 22:20:33,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9141914191419142 [2023-11-21 22:20:33,987 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2023-11-21 22:20:33,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2023-11-21 22:20:33,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:33,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2023-11-21 22:20:33,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2023-11-21 22:20:34,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-11-21 22:20:34,013 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-11-21 22:20:34,018 INFO L175 Difference]: Start difference. First operand has 94 places, 92 transitions, 187 flow. Second operand 3 states and 277 transitions. [2023-11-21 22:20:34,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 100 transitions, 253 flow [2023-11-21 22:20:34,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 100 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:20:34,034 INFO L231 Difference]: Finished difference. Result has 97 places, 94 transitions, 214 flow [2023-11-21 22:20:34,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=97, PETRI_TRANSITIONS=94} [2023-11-21 22:20:34,044 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 3 predicate places. [2023-11-21 22:20:34,045 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 94 transitions, 214 flow [2023-11-21 22:20:34,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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) [2023-11-21 22:20:34,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:34,046 INFO L208 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] [2023-11-21 22:20:34,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:20:34,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 22:20:34,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:34,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1856632500, now seen corresponding path program 1 times [2023-11-21 22:20:34,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:34,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906990974] [2023-11-21 22:20:34,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:34,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:34,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:34,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:34,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906990974] [2023-11-21 22:20:34,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906990974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:34,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:34,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:34,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772915959] [2023-11-21 22:20:34,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:34,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:34,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:34,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:34,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:34,238 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 101 [2023-11-21 22:20:34,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 94 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-11-21 22:20:34,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:34,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 101 [2023-11-21 22:20:34,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:34,440 INFO L124 PetriNetUnfolderBase]: 64/465 cut-off events. [2023-11-21 22:20:34,441 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-21 22:20:34,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 465 events. 64/465 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2493 event pairs, 28 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 630. Up to 81 conditions per place. [2023-11-21 22:20:34,446 INFO L140 encePairwiseOnDemand]: 95/101 looper letters, 26 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2023-11-21 22:20:34,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 106 transitions, 298 flow [2023-11-21 22:20:34,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:34,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:34,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2023-11-21 22:20:34,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9075907590759076 [2023-11-21 22:20:34,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2023-11-21 22:20:34,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2023-11-21 22:20:34,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:34,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2023-11-21 22:20:34,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2023-11-21 22:20:34,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-11-21 22:20:34,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-11-21 22:20:34,456 INFO L175 Difference]: Start difference. First operand has 97 places, 94 transitions, 214 flow. Second operand 3 states and 275 transitions. [2023-11-21 22:20:34,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 106 transitions, 298 flow [2023-11-21 22:20:34,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 106 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:20:34,467 INFO L231 Difference]: Finished difference. Result has 98 places, 96 transitions, 234 flow [2023-11-21 22:20:34,467 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=98, PETRI_TRANSITIONS=96} [2023-11-21 22:20:34,469 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 4 predicate places. [2023-11-21 22:20:34,469 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 96 transitions, 234 flow [2023-11-21 22:20:34,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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) [2023-11-21 22:20:34,471 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:34,472 INFO L208 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] [2023-11-21 22:20:34,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:20:34,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 22:20:34,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:34,477 INFO L85 PathProgramCache]: Analyzing trace with hash 43610688, now seen corresponding path program 1 times [2023-11-21 22:20:34,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:34,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161304544] [2023-11-21 22:20:34,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:34,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:34,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:34,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:34,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161304544] [2023-11-21 22:20:34,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161304544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:34,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:34,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:34,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840096616] [2023-11-21 22:20:34,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:34,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:34,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:34,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:34,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:34,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 101 [2023-11-21 22:20:34,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 96 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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) [2023-11-21 22:20:34,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:34,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 101 [2023-11-21 22:20:34,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:34,696 INFO L124 PetriNetUnfolderBase]: 82/508 cut-off events. [2023-11-21 22:20:34,696 INFO L125 PetriNetUnfolderBase]: For 39/44 co-relation queries the response was YES. [2023-11-21 22:20:34,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 508 events. 82/508 cut-off events. For 39/44 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2944 event pairs, 57 based on Foata normal form. 0/470 useless extension candidates. Maximal degree in co-relation 754. Up to 150 conditions per place. [2023-11-21 22:20:34,701 INFO L140 encePairwiseOnDemand]: 96/101 looper letters, 24 selfloop transitions, 5 changer transitions 0/105 dead transitions. [2023-11-21 22:20:34,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 105 transitions, 312 flow [2023-11-21 22:20:34,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:34,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:34,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2023-11-21 22:20:34,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8943894389438944 [2023-11-21 22:20:34,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2023-11-21 22:20:34,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2023-11-21 22:20:34,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:34,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2023-11-21 22:20:34,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2023-11-21 22:20:34,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-11-21 22:20:34,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-11-21 22:20:34,709 INFO L175 Difference]: Start difference. First operand has 98 places, 96 transitions, 234 flow. Second operand 3 states and 271 transitions. [2023-11-21 22:20:34,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 105 transitions, 312 flow [2023-11-21 22:20:34,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 105 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:20:34,715 INFO L231 Difference]: Finished difference. Result has 100 places, 99 transitions, 262 flow [2023-11-21 22:20:34,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=100, PETRI_TRANSITIONS=99} [2023-11-21 22:20:34,717 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 6 predicate places. [2023-11-21 22:20:34,717 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 99 transitions, 262 flow [2023-11-21 22:20:34,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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) [2023-11-21 22:20:34,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:34,718 INFO L208 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] [2023-11-21 22:20:34,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:20:34,718 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 22:20:34,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:34,719 INFO L85 PathProgramCache]: Analyzing trace with hash -2028300609, now seen corresponding path program 1 times [2023-11-21 22:20:34,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:34,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188192313] [2023-11-21 22:20:34,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:34,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:34,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:34,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188192313] [2023-11-21 22:20:34,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188192313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:34,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:34,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:34,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193104502] [2023-11-21 22:20:34,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:34,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:34,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:34,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:34,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:34,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 101 [2023-11-21 22:20:34,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 99 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2023-11-21 22:20:34,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:34,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 101 [2023-11-21 22:20:34,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:34,951 INFO L124 PetriNetUnfolderBase]: 94/626 cut-off events. [2023-11-21 22:20:34,951 INFO L125 PetriNetUnfolderBase]: For 191/196 co-relation queries the response was YES. [2023-11-21 22:20:34,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 626 events. 94/626 cut-off events. For 191/196 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3825 event pairs, 56 based on Foata normal form. 3/579 useless extension candidates. Maximal degree in co-relation 994. Up to 178 conditions per place. [2023-11-21 22:20:34,957 INFO L140 encePairwiseOnDemand]: 95/101 looper letters, 23 selfloop transitions, 8 changer transitions 0/108 dead transitions. [2023-11-21 22:20:34,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 108 transitions, 356 flow [2023-11-21 22:20:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:34,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:34,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2023-11-21 22:20:34,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8745874587458746 [2023-11-21 22:20:34,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2023-11-21 22:20:34,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2023-11-21 22:20:34,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:34,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2023-11-21 22:20:34,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2023-11-21 22:20:34,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-11-21 22:20:34,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-11-21 22:20:34,964 INFO L175 Difference]: Start difference. First operand has 100 places, 99 transitions, 262 flow. Second operand 3 states and 265 transitions. [2023-11-21 22:20:34,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 108 transitions, 356 flow [2023-11-21 22:20:34,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 108 transitions, 340 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-21 22:20:34,971 INFO L231 Difference]: Finished difference. Result has 102 places, 104 transitions, 314 flow [2023-11-21 22:20:34,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=102, PETRI_TRANSITIONS=104} [2023-11-21 22:20:34,972 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2023-11-21 22:20:34,973 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 104 transitions, 314 flow [2023-11-21 22:20:34,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2023-11-21 22:20:34,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:34,974 INFO L208 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] [2023-11-21 22:20:34,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:20:34,974 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 22:20:34,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:34,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1117594970, now seen corresponding path program 1 times [2023-11-21 22:20:34,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:34,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499369128] [2023-11-21 22:20:34,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:34,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:35,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:35,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:35,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499369128] [2023-11-21 22:20:35,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499369128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:35,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:35,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:20:35,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031763971] [2023-11-21 22:20:35,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:35,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:20:35,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:35,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:20:35,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:35,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 101 [2023-11-21 22:20:35,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 104 transitions, 314 flow. Second operand has 7 states, 7 states have (on average 81.28571428571429) internal successors, (569), 7 states have internal predecessors, (569), 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) [2023-11-21 22:20:35,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:35,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 101 [2023-11-21 22:20:35,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:35,651 INFO L124 PetriNetUnfolderBase]: 30/290 cut-off events. [2023-11-21 22:20:35,652 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2023-11-21 22:20:35,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 290 events. 30/290 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1125 event pairs, 13 based on Foata normal form. 10/280 useless extension candidates. Maximal degree in co-relation 424. Up to 56 conditions per place. [2023-11-21 22:20:35,655 INFO L140 encePairwiseOnDemand]: 93/101 looper letters, 12 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2023-11-21 22:20:35,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 92 transitions, 272 flow [2023-11-21 22:20:35,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:20:35,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:20:35,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 423 transitions. [2023-11-21 22:20:35,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8376237623762376 [2023-11-21 22:20:35,668 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 423 transitions. [2023-11-21 22:20:35,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 423 transitions. [2023-11-21 22:20:35,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:35,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 423 transitions. [2023-11-21 22:20:35,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 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) [2023-11-21 22:20:35,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 101.0) internal successors, (606), 6 states have internal predecessors, (606), 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) [2023-11-21 22:20:35,675 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 101.0) internal successors, (606), 6 states have internal predecessors, (606), 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) [2023-11-21 22:20:35,675 INFO L175 Difference]: Start difference. First operand has 102 places, 104 transitions, 314 flow. Second operand 5 states and 423 transitions. [2023-11-21 22:20:35,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 92 transitions, 272 flow [2023-11-21 22:20:35,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 92 transitions, 242 flow, removed 7 selfloop flow, removed 8 redundant places. [2023-11-21 22:20:35,683 INFO L231 Difference]: Finished difference. Result has 95 places, 90 transitions, 214 flow [2023-11-21 22:20:35,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=95, PETRI_TRANSITIONS=90} [2023-11-21 22:20:35,688 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2023-11-21 22:20:35,688 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 90 transitions, 214 flow [2023-11-21 22:20:35,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.28571428571429) internal successors, (569), 7 states have internal predecessors, (569), 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) [2023-11-21 22:20:35,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:35,690 INFO L208 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] [2023-11-21 22:20:35,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:20:35,691 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 22:20:35,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:35,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1628678068, now seen corresponding path program 1 times [2023-11-21 22:20:35,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:35,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871421440] [2023-11-21 22:20:35,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:35,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:35,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:35,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:35,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871421440] [2023-11-21 22:20:35,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871421440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:35,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:35,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:35,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767518885] [2023-11-21 22:20:35,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:35,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:35,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:35,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:35,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:35,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 101 [2023-11-21 22:20:35,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2023-11-21 22:20:35,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:35,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 101 [2023-11-21 22:20:35,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:35,916 INFO L124 PetriNetUnfolderBase]: 71/417 cut-off events. [2023-11-21 22:20:35,917 INFO L125 PetriNetUnfolderBase]: For 65/68 co-relation queries the response was YES. [2023-11-21 22:20:35,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 676 conditions, 417 events. 71/417 cut-off events. For 65/68 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1995 event pairs, 41 based on Foata normal form. 2/398 useless extension candidates. Maximal degree in co-relation 642. Up to 127 conditions per place. [2023-11-21 22:20:35,920 INFO L140 encePairwiseOnDemand]: 96/101 looper letters, 25 selfloop transitions, 4 changer transitions 0/99 dead transitions. [2023-11-21 22:20:35,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 99 transitions, 300 flow [2023-11-21 22:20:35,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:35,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:35,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 271 transitions. [2023-11-21 22:20:35,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8943894389438944 [2023-11-21 22:20:35,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 271 transitions. [2023-11-21 22:20:35,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 271 transitions. [2023-11-21 22:20:35,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:35,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 271 transitions. [2023-11-21 22:20:35,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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) [2023-11-21 22:20:35,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-11-21 22:20:35,928 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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) [2023-11-21 22:20:35,928 INFO L175 Difference]: Start difference. First operand has 95 places, 90 transitions, 214 flow. Second operand 3 states and 271 transitions. [2023-11-21 22:20:35,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 99 transitions, 300 flow [2023-11-21 22:20:35,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 99 transitions, 287 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-21 22:20:35,934 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 237 flow [2023-11-21 22:20:35,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2023-11-21 22:20:35,939 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2023-11-21 22:20:35,939 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 237 flow [2023-11-21 22:20:35,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2023-11-21 22:20:35,940 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:35,941 INFO L208 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] [2023-11-21 22:20:35,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:20:35,942 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 22:20:35,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:35,945 INFO L85 PathProgramCache]: Analyzing trace with hash -672666850, now seen corresponding path program 1 times [2023-11-21 22:20:35,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:35,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557092088] [2023-11-21 22:20:35,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:35,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:36,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:36,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:36,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557092088] [2023-11-21 22:20:36,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557092088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:36,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:36,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:36,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767420975] [2023-11-21 22:20:36,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:36,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:20:36,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:36,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:20:36,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:20:36,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 101 [2023-11-21 22:20:36,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 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) [2023-11-21 22:20:36,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:36,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 101 [2023-11-21 22:20:36,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:36,619 INFO L124 PetriNetUnfolderBase]: 57/374 cut-off events. [2023-11-21 22:20:36,619 INFO L125 PetriNetUnfolderBase]: For 41/42 co-relation queries the response was YES. [2023-11-21 22:20:36,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 374 events. 57/374 cut-off events. For 41/42 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1755 event pairs, 18 based on Foata normal form. 0/361 useless extension candidates. Maximal degree in co-relation 579. Up to 65 conditions per place. [2023-11-21 22:20:36,622 INFO L140 encePairwiseOnDemand]: 96/101 looper letters, 14 selfloop transitions, 4 changer transitions 19/108 dead transitions. [2023-11-21 22:20:36,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 108 transitions, 343 flow [2023-11-21 22:20:36,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:36,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:20:36,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 503 transitions. [2023-11-21 22:20:36,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.83003300330033 [2023-11-21 22:20:36,625 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 503 transitions. [2023-11-21 22:20:36,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 503 transitions. [2023-11-21 22:20:36,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:36,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 503 transitions. [2023-11-21 22:20:36,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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) [2023-11-21 22:20:36,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 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) [2023-11-21 22:20:36,630 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 101.0) internal successors, (707), 7 states have internal predecessors, (707), 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) [2023-11-21 22:20:36,630 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 237 flow. Second operand 6 states and 503 transitions. [2023-11-21 22:20:36,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 108 transitions, 343 flow [2023-11-21 22:20:36,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 108 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:20:36,634 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 223 flow [2023-11-21 22:20:36,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=223, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2023-11-21 22:20:36,635 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 4 predicate places. [2023-11-21 22:20:36,635 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 223 flow [2023-11-21 22:20:36,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 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) [2023-11-21 22:20:36,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:36,636 INFO L208 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] [2023-11-21 22:20:36,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:20:36,636 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 22:20:36,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:36,637 INFO L85 PathProgramCache]: Analyzing trace with hash 73449243, now seen corresponding path program 1 times [2023-11-21 22:20:36,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:36,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265035603] [2023-11-21 22:20:36,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:36,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:36,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:36,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:36,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265035603] [2023-11-21 22:20:36,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265035603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:36,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:36,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:20:36,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573305445] [2023-11-21 22:20:36,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:36,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:20:36,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:36,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:20:36,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:36,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 101 [2023-11-21 22:20:36,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 223 flow. Second operand has 7 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 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) [2023-11-21 22:20:36,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:36,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 101 [2023-11-21 22:20:36,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:37,039 INFO L124 PetriNetUnfolderBase]: 31/409 cut-off events. [2023-11-21 22:20:37,039 INFO L125 PetriNetUnfolderBase]: For 25/26 co-relation queries the response was YES. [2023-11-21 22:20:37,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 409 events. 31/409 cut-off events. For 25/26 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2045 event pairs, 12 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 604. Up to 64 conditions per place. [2023-11-21 22:20:37,041 INFO L140 encePairwiseOnDemand]: 92/101 looper letters, 17 selfloop transitions, 11 changer transitions 5/104 dead transitions. [2023-11-21 22:20:37,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 104 transitions, 323 flow [2023-11-21 22:20:37,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:20:37,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-21 22:20:37,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 595 transitions. [2023-11-21 22:20:37,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8415841584158416 [2023-11-21 22:20:37,044 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 595 transitions. [2023-11-21 22:20:37,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 595 transitions. [2023-11-21 22:20:37,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:37,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 595 transitions. [2023-11-21 22:20:37,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 85.0) internal successors, (595), 7 states have internal predecessors, (595), 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) [2023-11-21 22:20:37,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 101.0) internal successors, (808), 8 states have internal predecessors, (808), 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) [2023-11-21 22:20:37,050 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 101.0) internal successors, (808), 8 states have internal predecessors, (808), 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) [2023-11-21 22:20:37,050 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 223 flow. Second operand 7 states and 595 transitions. [2023-11-21 22:20:37,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 104 transitions, 323 flow [2023-11-21 22:20:37,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 104 transitions, 316 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:20:37,054 INFO L231 Difference]: Finished difference. Result has 103 places, 94 transitions, 269 flow [2023-11-21 22:20:37,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=269, PETRI_PLACES=103, PETRI_TRANSITIONS=94} [2023-11-21 22:20:37,055 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2023-11-21 22:20:37,055 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 94 transitions, 269 flow [2023-11-21 22:20:37,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 81.57142857142857) internal successors, (571), 7 states have internal predecessors, (571), 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) [2023-11-21 22:20:37,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:37,056 INFO L208 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] [2023-11-21 22:20:37,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:20:37,056 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 22:20:37,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:37,057 INFO L85 PathProgramCache]: Analyzing trace with hash -192165029, now seen corresponding path program 2 times [2023-11-21 22:20:37,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:37,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27771068] [2023-11-21 22:20:37,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:37,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:37,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:37,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:37,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27771068] [2023-11-21 22:20:37,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27771068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:37,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:37,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:20:37,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705316810] [2023-11-21 22:20:37,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:37,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:37,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:37,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:37,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:37,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 101 [2023-11-21 22:20:37,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 94 transitions, 269 flow. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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) [2023-11-21 22:20:37,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:37,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 101 [2023-11-21 22:20:37,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:37,287 INFO L124 PetriNetUnfolderBase]: 22/326 cut-off events. [2023-11-21 22:20:37,287 INFO L125 PetriNetUnfolderBase]: For 84/97 co-relation queries the response was YES. [2023-11-21 22:20:37,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 326 events. 22/326 cut-off events. For 84/97 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1413 event pairs, 6 based on Foata normal form. 5/327 useless extension candidates. Maximal degree in co-relation 536. Up to 47 conditions per place. [2023-11-21 22:20:37,289 INFO L140 encePairwiseOnDemand]: 93/101 looper letters, 13 selfloop transitions, 6 changer transitions 15/106 dead transitions. [2023-11-21 22:20:37,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 106 transitions, 391 flow [2023-11-21 22:20:37,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:37,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:20:37,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 354 transitions. [2023-11-21 22:20:37,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8762376237623762 [2023-11-21 22:20:37,291 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 354 transitions. [2023-11-21 22:20:37,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 354 transitions. [2023-11-21 22:20:37,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:37,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 354 transitions. [2023-11-21 22:20:37,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 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) [2023-11-21 22:20:37,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2023-11-21 22:20:37,295 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2023-11-21 22:20:37,295 INFO L175 Difference]: Start difference. First operand has 103 places, 94 transitions, 269 flow. Second operand 4 states and 354 transitions. [2023-11-21 22:20:37,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 106 transitions, 391 flow [2023-11-21 22:20:37,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 106 transitions, 378 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-21 22:20:37,300 INFO L231 Difference]: Finished difference. Result has 106 places, 90 transitions, 269 flow [2023-11-21 22:20:37,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=269, PETRI_PLACES=106, PETRI_TRANSITIONS=90} [2023-11-21 22:20:37,301 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 12 predicate places. [2023-11-21 22:20:37,301 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 90 transitions, 269 flow [2023-11-21 22:20:37,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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) [2023-11-21 22:20:37,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:37,302 INFO L208 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] [2023-11-21 22:20:37,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:20:37,302 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-21 22:20:37,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:37,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1789503641, now seen corresponding path program 3 times [2023-11-21 22:20:37,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:37,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523097762] [2023-11-21 22:20:37,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:37,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:37,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:37,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:37,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523097762] [2023-11-21 22:20:37,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523097762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:37,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:37,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:20:37,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465087811] [2023-11-21 22:20:37,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:37,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:37,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:37,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:37,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:37,459 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 101 [2023-11-21 22:20:37,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 90 transitions, 269 flow. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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) [2023-11-21 22:20:37,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:37,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 101 [2023-11-21 22:20:37,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:37,511 INFO L124 PetriNetUnfolderBase]: 10/162 cut-off events. [2023-11-21 22:20:37,511 INFO L125 PetriNetUnfolderBase]: For 117/118 co-relation queries the response was YES. [2023-11-21 22:20:37,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 162 events. 10/162 cut-off events. For 117/118 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 422 event pairs, 5 based on Foata normal form. 2/164 useless extension candidates. Maximal degree in co-relation 309. Up to 25 conditions per place. [2023-11-21 22:20:37,512 INFO L140 encePairwiseOnDemand]: 95/101 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2023-11-21 22:20:37,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 69 transitions, 239 flow [2023-11-21 22:20:37,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:37,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:20:37,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 342 transitions. [2023-11-21 22:20:37,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8465346534653465 [2023-11-21 22:20:37,515 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 342 transitions. [2023-11-21 22:20:37,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 342 transitions. [2023-11-21 22:20:37,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:37,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 342 transitions. [2023-11-21 22:20:37,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 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) [2023-11-21 22:20:37,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2023-11-21 22:20:37,519 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 101.0) internal successors, (505), 5 states have internal predecessors, (505), 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) [2023-11-21 22:20:37,519 INFO L175 Difference]: Start difference. First operand has 106 places, 90 transitions, 269 flow. Second operand 4 states and 342 transitions. [2023-11-21 22:20:37,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 69 transitions, 239 flow [2023-11-21 22:20:37,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 69 transitions, 210 flow, removed 2 selfloop flow, removed 9 redundant places. [2023-11-21 22:20:37,521 INFO L231 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2023-11-21 22:20:37,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2023-11-21 22:20:37,523 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, -17 predicate places. [2023-11-21 22:20:37,523 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2023-11-21 22:20:37,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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) [2023-11-21 22:20:37,529 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-11-21 22:20:37,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-11-21 22:20:37,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-11-21 22:20:37,533 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 12 remaining) [2023-11-21 22:20:37,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-11-21 22:20:37,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-11-21 22:20:37,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-11-21 22:20:37,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-11-21 22:20:37,534 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-11-21 22:20:37,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-11-21 22:20:37,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-11-21 22:20:37,535 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-11-21 22:20:37,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:20:37,535 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:37,541 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:20:37,541 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:20:37,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:20:37 BasicIcfg [2023-11-21 22:20:37,552 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:20:37,553 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:20:37,553 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:20:37,553 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:20:37,553 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:32" (3/4) ... [2023-11-21 22:20:37,555 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:20:37,558 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-21 22:20:37,563 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 22:20:37,563 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 22:20:37,564 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 22:20:37,649 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:20:37,649 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:20:37,649 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:20:37,650 INFO L158 Benchmark]: Toolchain (without parser) took 6321.62ms. Allocated memory was 178.3MB in the beginning and 216.0MB in the end (delta: 37.7MB). Free memory was 130.8MB in the beginning and 67.0MB in the end (delta: 63.8MB). Peak memory consumption was 102.7MB. Max. memory is 16.1GB. [2023-11-21 22:20:37,650 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:20:37,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 777.85ms. Allocated memory is still 178.3MB. Free memory was 130.8MB in the beginning and 111.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:20:37,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.05ms. Allocated memory is still 178.3MB. Free memory was 111.3MB in the beginning and 109.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:20:37,652 INFO L158 Benchmark]: Boogie Preprocessor took 43.17ms. Allocated memory is still 178.3MB. Free memory was 109.2MB in the beginning and 107.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:20:37,652 INFO L158 Benchmark]: RCFGBuilder took 624.62ms. Allocated memory is still 178.3MB. Free memory was 107.1MB in the beginning and 146.2MB in the end (delta: -39.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2023-11-21 22:20:37,652 INFO L158 Benchmark]: TraceAbstraction took 4663.85ms. Allocated memory was 178.3MB in the beginning and 216.0MB in the end (delta: 37.7MB). Free memory was 145.2MB in the beginning and 71.2MB in the end (delta: 74.0MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. [2023-11-21 22:20:37,653 INFO L158 Benchmark]: Witness Printer took 97.08ms. Allocated memory is still 216.0MB. Free memory was 71.2MB in the beginning and 67.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:20:37,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 127.9MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 777.85ms. Allocated memory is still 178.3MB. Free memory was 130.8MB in the beginning and 111.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.05ms. Allocated memory is still 178.3MB. Free memory was 111.3MB in the beginning and 109.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.17ms. Allocated memory is still 178.3MB. Free memory was 109.2MB in the beginning and 107.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.62ms. Allocated memory is still 178.3MB. Free memory was 107.1MB in the beginning and 146.2MB in the end (delta: -39.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4663.85ms. Allocated memory was 178.3MB in the beginning and 216.0MB in the end (delta: 37.7MB). Free memory was 145.2MB in the beginning and 71.2MB in the end (delta: 74.0MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. * Witness Printer took 97.08ms. Allocated memory is still 216.0MB. Free memory was 71.2MB in the beginning and 67.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 135 locations, 12 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: 4.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 432 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 188 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 780 IncrementalHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 73 mSDtfsCounter, 780 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=314occurred in iteration=4, InterpolantAutomatonStates: 41, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 444 NumberOfCodeBlocks, 444 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 434 ConstructedInterpolants, 0 QuantifiedInterpolants, 832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 22:20:37,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cdc781d-ac2c-42e3-a0b1-df1b09eec7f1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE