./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya --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 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:41:41,410 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:41:41,474 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 04:41:41,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:41:41,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:41:41,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:41:41,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:41:41,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:41:41,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:41:41,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:41:41,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:41:41,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:41:41,509 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:41:41,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:41:41,510 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:41:41,510 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:41:41,510 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:41:41,511 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:41:41,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:41:41,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:41:41,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:41:41,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:41:41,516 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 04:41:41,516 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:41:41,516 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:41:41,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:41:41,517 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:41:41,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:41:41,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:41:41,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:41:41,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:41:41,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:41:41,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:41:41,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:41:41,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:41:41,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:41:41,521 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:41:41,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:41:41,521 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:41:41,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:41:41,522 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:41:41,522 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_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10776deb9ece8603196e8eecaf972964a6cae8e272af6ac2269e1894470ceda6 [2023-11-29 04:41:41,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:41:41,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:41:41,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:41:41,748 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:41:41,749 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:41:41,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i [2023-11-29 04:41:44,485 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:41:44,719 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:41:44,720 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/sv-benchmarks/c/goblint-regression/02-base_24-malloc_races.i [2023-11-29 04:41:44,739 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/data/f0cc7af02/3bee10189223436d8eca3f1b4c812298/FLAGa90a4cfc2 [2023-11-29 04:41:44,753 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/data/f0cc7af02/3bee10189223436d8eca3f1b4c812298 [2023-11-29 04:41:44,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:41:44,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:41:44,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:41:44,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:41:44,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:41:44,764 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:41:44" (1/1) ... [2023-11-29 04:41:44,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10bdbf7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:44, skipping insertion in model container [2023-11-29 04:41:44,765 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:41:44" (1/1) ... [2023-11-29 04:41:44,820 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:41:45,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:41:45,298 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:41:45,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:41:45,458 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:41:45,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45 WrapperNode [2023-11-29 04:41:45,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:41:45,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:41:45,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:41:45,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:41:45,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (1/1) ... [2023-11-29 04:41:45,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (1/1) ... [2023-11-29 04:41:45,510 INFO L138 Inliner]: procedures = 366, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2023-11-29 04:41:45,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:41:45,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:41:45,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:41:45,512 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:41:45,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (1/1) ... [2023-11-29 04:41:45,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (1/1) ... [2023-11-29 04:41:45,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (1/1) ... [2023-11-29 04:41:45,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (1/1) ... [2023-11-29 04:41:45,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (1/1) ... [2023-11-29 04:41:45,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (1/1) ... [2023-11-29 04:41:45,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (1/1) ... [2023-11-29 04:41:45,541 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (1/1) ... [2023-11-29 04:41:45,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:41:45,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:41:45,545 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:41:45,545 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:41:45,546 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (1/1) ... [2023-11-29 04:41:45,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:41:45,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:41:45,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:41:45,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:41:45,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:41:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:41:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 04:41:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 04:41:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 04:41:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 04:41:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 04:41:45,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:41:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 04:41:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 04:41:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 04:41:45,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:41:45,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:41:45,610 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 04:41:45,746 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:41:45,748 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:41:45,931 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:41:45,953 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:41:45,954 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 04:41:45,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:41:45 BoogieIcfgContainer [2023-11-29 04:41:45,956 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:41:45,958 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:41:45,958 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:41:45,961 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:41:45,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:41:44" (1/3) ... [2023-11-29 04:41:45,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7644ba7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:41:45, skipping insertion in model container [2023-11-29 04:41:45,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:41:45" (2/3) ... [2023-11-29 04:41:45,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7644ba7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:41:45, skipping insertion in model container [2023-11-29 04:41:45,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:41:45" (3/3) ... [2023-11-29 04:41:45,963 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_24-malloc_races.i [2023-11-29 04:41:45,970 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 04:41:45,977 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:41:45,977 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-29 04:41:45,978 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 04:41:46,031 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 04:41:46,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 102 transitions, 208 flow [2023-11-29 04:41:46,115 INFO L124 PetriNetUnfolderBase]: 0/101 cut-off events. [2023-11-29 04:41:46,115 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:41:46,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 80 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-29 04:41:46,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 102 transitions, 208 flow [2023-11-29 04:41:46,122 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 101 transitions, 205 flow [2023-11-29 04:41:46,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:41:46,136 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;@1bad7ab2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:41:46,136 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-29 04:41:46,141 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 04:41:46,141 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-29 04:41:46,141 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:41:46,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:46,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:41:46,143 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:46,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:46,147 INFO L85 PathProgramCache]: Analyzing trace with hash 203869684, now seen corresponding path program 1 times [2023-11-29 04:41:46,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:46,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806390604] [2023-11-29 04:41:46,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:46,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:41:46,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:41:46,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:41:46,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806390604] [2023-11-29 04:41:46,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806390604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:41:46,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:41:46,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:41:46,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371651822] [2023-11-29 04:41:46,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:41:46,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:41:46,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:41:46,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:41:46,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:41:46,433 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 102 [2023-11-29 04:41:46,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 101 transitions, 205 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-29 04:41:46,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:41:46,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 102 [2023-11-29 04:41:46,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:41:46,510 INFO L124 PetriNetUnfolderBase]: 12/232 cut-off events. [2023-11-29 04:41:46,511 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 04:41:46,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 232 events. 12/232 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 669 event pairs, 12 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 230. Up to 36 conditions per place. [2023-11-29 04:41:46,515 INFO L140 encePairwiseOnDemand]: 99/102 looper letters, 11 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2023-11-29 04:41:46,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 100 transitions, 229 flow [2023-11-29 04:41:46,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:41:46,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:41:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2023-11-29 04:41:46,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9084967320261438 [2023-11-29 04:41:46,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2023-11-29 04:41:46,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2023-11-29 04:41:46,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:41:46,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2023-11-29 04:41:46,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2023-11-29 04:41:46,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-29 04:41:46,543 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-29 04:41:46,545 INFO L175 Difference]: Start difference. First operand has 105 places, 101 transitions, 205 flow. Second operand 3 states and 278 transitions. [2023-11-29 04:41:46,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 100 transitions, 229 flow [2023-11-29 04:41:46,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 100 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 04:41:46,552 INFO L231 Difference]: Finished difference. Result has 105 places, 100 transitions, 206 flow [2023-11-29 04:41:46,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=105, PETRI_TRANSITIONS=100} [2023-11-29 04:41:46,558 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 0 predicate places. [2023-11-29 04:41:46,558 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 206 flow [2023-11-29 04:41:46,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-29 04:41:46,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:46,558 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] [2023-11-29 04:41:46,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:41:46,559 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:46,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:46,560 INFO L85 PathProgramCache]: Analyzing trace with hash -232426588, now seen corresponding path program 1 times [2023-11-29 04:41:46,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:46,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303060465] [2023-11-29 04:41:46,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:46,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:41:46,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:41:46,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:41:46,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303060465] [2023-11-29 04:41:46,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303060465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:41:46,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:41:46,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:41:46,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616853161] [2023-11-29 04:41:46,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:41:46,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:41:46,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:41:46,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:41:46,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:41:46,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 102 [2023-11-29 04:41:46,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-29 04:41:46,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:41:46,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 102 [2023-11-29 04:41:46,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:41:46,720 INFO L124 PetriNetUnfolderBase]: 12/231 cut-off events. [2023-11-29 04:41:46,721 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:41:46,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 231 events. 12/231 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 698 event pairs, 12 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 248. Up to 36 conditions per place. [2023-11-29 04:41:46,723 INFO L140 encePairwiseOnDemand]: 99/102 looper letters, 11 selfloop transitions, 2 changer transitions 0/99 dead transitions. [2023-11-29 04:41:46,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 99 transitions, 230 flow [2023-11-29 04:41:46,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:41:46,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:41:46,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2023-11-29 04:41:46,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9084967320261438 [2023-11-29 04:41:46,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2023-11-29 04:41:46,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2023-11-29 04:41:46,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:41:46,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2023-11-29 04:41:46,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2023-11-29 04:41:46,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-29 04:41:46,731 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-29 04:41:46,732 INFO L175 Difference]: Start difference. First operand has 105 places, 100 transitions, 206 flow. Second operand 3 states and 278 transitions. [2023-11-29 04:41:46,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 99 transitions, 230 flow [2023-11-29 04:41:46,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 99 transitions, 226 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:41:46,736 INFO L231 Difference]: Finished difference. Result has 104 places, 99 transitions, 204 flow [2023-11-29 04:41:46,736 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=104, PETRI_TRANSITIONS=99} [2023-11-29 04:41:46,737 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, -1 predicate places. [2023-11-29 04:41:46,737 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 99 transitions, 204 flow [2023-11-29 04:41:46,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2023-11-29 04:41:46,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:46,738 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] [2023-11-29 04:41:46,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:41:46,738 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:46,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:46,739 INFO L85 PathProgramCache]: Analyzing trace with hash -936841872, now seen corresponding path program 1 times [2023-11-29 04:41:46,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:46,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581660638] [2023-11-29 04:41:46,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:46,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:46,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:41:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:41:46,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:41:46,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581660638] [2023-11-29 04:41:46,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581660638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:41:46,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:41:46,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:41:46,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382230630] [2023-11-29 04:41:46,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:41:46,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:41:46,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:41:46,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:41:46,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:41:46,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 102 [2023-11-29 04:41:46,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 99 transitions, 204 flow. Second operand has 3 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) [2023-11-29 04:41:46,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:41:46,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 102 [2023-11-29 04:41:46,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:41:46,907 INFO L124 PetriNetUnfolderBase]: 16/262 cut-off events. [2023-11-29 04:41:46,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:41:46,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 262 events. 16/262 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 911 event pairs, 7 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 277. Up to 36 conditions per place. [2023-11-29 04:41:46,910 INFO L140 encePairwiseOnDemand]: 98/102 looper letters, 12 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2023-11-29 04:41:46,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 101 transitions, 236 flow [2023-11-29 04:41:46,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:41:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:41:46,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2023-11-29 04:41:46,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.934640522875817 [2023-11-29 04:41:46,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2023-11-29 04:41:46,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2023-11-29 04:41:46,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:41:46,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2023-11-29 04:41:46,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2023-11-29 04:41:46,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-29 04:41:46,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-29 04:41:46,917 INFO L175 Difference]: Start difference. First operand has 104 places, 99 transitions, 204 flow. Second operand 3 states and 286 transitions. [2023-11-29 04:41:46,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 101 transitions, 236 flow [2023-11-29 04:41:46,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 101 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 04:41:46,921 INFO L231 Difference]: Finished difference. Result has 103 places, 99 transitions, 210 flow [2023-11-29 04:41:46,921 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=103, PETRI_TRANSITIONS=99} [2023-11-29 04:41:46,922 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, -2 predicate places. [2023-11-29 04:41:46,922 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 99 transitions, 210 flow [2023-11-29 04:41:46,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-11-29 04:41:46,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:46,923 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] [2023-11-29 04:41:46,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:41:46,924 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:46,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:46,924 INFO L85 PathProgramCache]: Analyzing trace with hash -816043532, now seen corresponding path program 1 times [2023-11-29 04:41:46,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:46,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669843103] [2023-11-29 04:41:46,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:46,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:41:47,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:41:47,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:41:47,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669843103] [2023-11-29 04:41:47,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669843103] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:41:47,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:41:47,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:41:47,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332940122] [2023-11-29 04:41:47,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:41:47,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:41:47,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:41:47,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:41:47,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:41:47,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 102 [2023-11-29 04:41:47,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 99 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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) [2023-11-29 04:41:47,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:41:47,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 102 [2023-11-29 04:41:47,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:41:47,733 INFO L124 PetriNetUnfolderBase]: 231/883 cut-off events. [2023-11-29 04:41:47,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:41:47,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 883 events. 231/883 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 5168 event pairs, 96 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 1360. Up to 348 conditions per place. [2023-11-29 04:41:47,741 INFO L140 encePairwiseOnDemand]: 86/102 looper letters, 51 selfloop transitions, 41 changer transitions 0/163 dead transitions. [2023-11-29 04:41:47,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 163 transitions, 522 flow [2023-11-29 04:41:47,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:41:47,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:41:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 537 transitions. [2023-11-29 04:41:47,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8774509803921569 [2023-11-29 04:41:47,744 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 537 transitions. [2023-11-29 04:41:47,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 537 transitions. [2023-11-29 04:41:47,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:41:47,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 537 transitions. [2023-11-29 04:41:47,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.5) internal successors, (537), 6 states have internal predecessors, (537), 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) [2023-11-29 04:41:47,749 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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) [2023-11-29 04:41:47,750 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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) [2023-11-29 04:41:47,750 INFO L175 Difference]: Start difference. First operand has 103 places, 99 transitions, 210 flow. Second operand 6 states and 537 transitions. [2023-11-29 04:41:47,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 163 transitions, 522 flow [2023-11-29 04:41:47,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 163 transitions, 522 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 04:41:47,755 INFO L231 Difference]: Finished difference. Result has 112 places, 141 transitions, 468 flow [2023-11-29 04:41:47,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=468, PETRI_PLACES=112, PETRI_TRANSITIONS=141} [2023-11-29 04:41:47,756 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 7 predicate places. [2023-11-29 04:41:47,756 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 141 transitions, 468 flow [2023-11-29 04:41:47,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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) [2023-11-29 04:41:47,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:47,757 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] [2023-11-29 04:41:47,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 04:41:47,757 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:47,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:47,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1603641917, now seen corresponding path program 1 times [2023-11-29 04:41:47,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:47,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934431281] [2023-11-29 04:41:47,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:47,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:41:48,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:41:48,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:41:48,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934431281] [2023-11-29 04:41:48,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934431281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:41:48,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:41:48,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:41:48,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12284910] [2023-11-29 04:41:48,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:41:48,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:41:48,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:41:48,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:41:48,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:41:48,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 102 [2023-11-29 04:41:48,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 141 transitions, 468 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2023-11-29 04:41:48,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:41:48,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 102 [2023-11-29 04:41:48,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:41:48,587 INFO L124 PetriNetUnfolderBase]: 285/1202 cut-off events. [2023-11-29 04:41:48,587 INFO L125 PetriNetUnfolderBase]: For 318/368 co-relation queries the response was YES. [2023-11-29 04:41:48,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2469 conditions, 1202 events. 285/1202 cut-off events. For 318/368 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 8296 event pairs, 29 based on Foata normal form. 31/1168 useless extension candidates. Maximal degree in co-relation 2424. Up to 272 conditions per place. [2023-11-29 04:41:48,598 INFO L140 encePairwiseOnDemand]: 87/102 looper letters, 71 selfloop transitions, 48 changer transitions 0/216 dead transitions. [2023-11-29 04:41:48,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 216 transitions, 970 flow [2023-11-29 04:41:48,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:41:48,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:41:48,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 567 transitions. [2023-11-29 04:41:48,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9264705882352942 [2023-11-29 04:41:48,601 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 567 transitions. [2023-11-29 04:41:48,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 567 transitions. [2023-11-29 04:41:48,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:41:48,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 567 transitions. [2023-11-29 04:41:48,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 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) [2023-11-29 04:41:48,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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) [2023-11-29 04:41:48,607 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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) [2023-11-29 04:41:48,608 INFO L175 Difference]: Start difference. First operand has 112 places, 141 transitions, 468 flow. Second operand 6 states and 567 transitions. [2023-11-29 04:41:48,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 216 transitions, 970 flow [2023-11-29 04:41:48,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 216 transitions, 970 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 04:41:48,618 INFO L231 Difference]: Finished difference. Result has 122 places, 187 transitions, 874 flow [2023-11-29 04:41:48,618 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=874, PETRI_PLACES=122, PETRI_TRANSITIONS=187} [2023-11-29 04:41:48,619 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 17 predicate places. [2023-11-29 04:41:48,619 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 187 transitions, 874 flow [2023-11-29 04:41:48,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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) [2023-11-29 04:41:48,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:48,620 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] [2023-11-29 04:41:48,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 04:41:48,620 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:48,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:48,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1237704266, now seen corresponding path program 1 times [2023-11-29 04:41:48,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:48,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132228629] [2023-11-29 04:41:48,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:48,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:41:48,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:41:48,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:41:48,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132228629] [2023-11-29 04:41:48,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132228629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:41:48,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:41:48,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:41:48,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117550738] [2023-11-29 04:41:48,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:41:48,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:41:48,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:41:48,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:41:48,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:41:48,700 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 102 [2023-11-29 04:41:48,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 187 transitions, 874 flow. Second operand has 3 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) [2023-11-29 04:41:48,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:41:48,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 102 [2023-11-29 04:41:48,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:41:48,904 INFO L124 PetriNetUnfolderBase]: 231/1150 cut-off events. [2023-11-29 04:41:48,904 INFO L125 PetriNetUnfolderBase]: For 536/587 co-relation queries the response was YES. [2023-11-29 04:41:48,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2463 conditions, 1150 events. 231/1150 cut-off events. For 536/587 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 8086 event pairs, 24 based on Foata normal form. 14/1121 useless extension candidates. Maximal degree in co-relation 2414. Up to 215 conditions per place. [2023-11-29 04:41:48,915 INFO L140 encePairwiseOnDemand]: 98/102 looper letters, 13 selfloop transitions, 2 changer transitions 0/190 dead transitions. [2023-11-29 04:41:48,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 190 transitions, 910 flow [2023-11-29 04:41:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:41:48,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:41:48,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2023-11-29 04:41:48,917 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9379084967320261 [2023-11-29 04:41:48,917 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2023-11-29 04:41:48,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2023-11-29 04:41:48,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:41:48,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2023-11-29 04:41:48,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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) [2023-11-29 04:41:48,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-29 04:41:48,920 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-29 04:41:48,920 INFO L175 Difference]: Start difference. First operand has 122 places, 187 transitions, 874 flow. Second operand 3 states and 287 transitions. [2023-11-29 04:41:48,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 190 transitions, 910 flow [2023-11-29 04:41:48,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 190 transitions, 902 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-11-29 04:41:48,933 INFO L231 Difference]: Finished difference. Result has 123 places, 187 transitions, 876 flow [2023-11-29 04:41:48,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=123, PETRI_TRANSITIONS=187} [2023-11-29 04:41:48,934 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 18 predicate places. [2023-11-29 04:41:48,935 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 187 transitions, 876 flow [2023-11-29 04:41:48,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-11-29 04:41:48,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:48,935 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] [2023-11-29 04:41:48,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 04:41:48,936 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:48,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:48,936 INFO L85 PathProgramCache]: Analyzing trace with hash 465060631, now seen corresponding path program 1 times [2023-11-29 04:41:48,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:48,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358831450] [2023-11-29 04:41:48,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:48,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:41:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:41:49,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:41:49,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358831450] [2023-11-29 04:41:49,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358831450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:41:49,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:41:49,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:41:49,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183450256] [2023-11-29 04:41:49,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:41:49,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:41:49,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:41:49,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:41:49,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:41:49,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 102 [2023-11-29 04:41:49,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 187 transitions, 876 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2023-11-29 04:41:49,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:41:49,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 102 [2023-11-29 04:41:49,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:41:49,104 INFO L124 PetriNetUnfolderBase]: 40/309 cut-off events. [2023-11-29 04:41:49,104 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2023-11-29 04:41:49,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 309 events. 40/309 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1157 event pairs, 4 based on Foata normal form. 2/299 useless extension candidates. Maximal degree in co-relation 530. Up to 68 conditions per place. [2023-11-29 04:41:49,107 INFO L140 encePairwiseOnDemand]: 98/102 looper letters, 2 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2023-11-29 04:41:49,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 120 transitions, 422 flow [2023-11-29 04:41:49,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:41:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:41:49,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-11-29 04:41:49,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9673202614379085 [2023-11-29 04:41:49,109 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-11-29 04:41:49,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-11-29 04:41:49,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:41:49,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-11-29 04:41:49,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2023-11-29 04:41:49,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-29 04:41:49,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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) [2023-11-29 04:41:49,112 INFO L175 Difference]: Start difference. First operand has 123 places, 187 transitions, 876 flow. Second operand 3 states and 296 transitions. [2023-11-29 04:41:49,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 120 transitions, 422 flow [2023-11-29 04:41:49,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 120 transitions, 372 flow, removed 17 selfloop flow, removed 8 redundant places. [2023-11-29 04:41:49,117 INFO L231 Difference]: Finished difference. Result has 116 places, 120 transitions, 368 flow [2023-11-29 04:41:49,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=116, PETRI_TRANSITIONS=120} [2023-11-29 04:41:49,118 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 11 predicate places. [2023-11-29 04:41:49,118 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 120 transitions, 368 flow [2023-11-29 04:41:49,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 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) [2023-11-29 04:41:49,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:49,119 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] [2023-11-29 04:41:49,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 04:41:49,119 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:49,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:49,120 INFO L85 PathProgramCache]: Analyzing trace with hash -791779718, now seen corresponding path program 1 times [2023-11-29 04:41:49,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:49,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708682155] [2023-11-29 04:41:49,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:49,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:41:49,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:41:49,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:41:49,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708682155] [2023-11-29 04:41:49,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708682155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:41:49,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:41:49,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:41:49,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778426805] [2023-11-29 04:41:49,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:41:49,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:41:49,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:41:49,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:41:49,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:41:49,571 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 102 [2023-11-29 04:41:49,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 120 transitions, 368 flow. Second operand has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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) [2023-11-29 04:41:49,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:41:49,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 102 [2023-11-29 04:41:49,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:41:49,721 INFO L124 PetriNetUnfolderBase]: 142/671 cut-off events. [2023-11-29 04:41:49,721 INFO L125 PetriNetUnfolderBase]: For 114/129 co-relation queries the response was YES. [2023-11-29 04:41:49,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1300 conditions, 671 events. 142/671 cut-off events. For 114/129 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3659 event pairs, 35 based on Foata normal form. 0/654 useless extension candidates. Maximal degree in co-relation 1252. Up to 231 conditions per place. [2023-11-29 04:41:49,726 INFO L140 encePairwiseOnDemand]: 90/102 looper letters, 59 selfloop transitions, 25 changer transitions 4/160 dead transitions. [2023-11-29 04:41:49,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 160 transitions, 656 flow [2023-11-29 04:41:49,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:41:49,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:41:49,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 513 transitions. [2023-11-29 04:41:49,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8382352941176471 [2023-11-29 04:41:49,729 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 513 transitions. [2023-11-29 04:41:49,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 513 transitions. [2023-11-29 04:41:49,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:41:49,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 513 transitions. [2023-11-29 04:41:49,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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) [2023-11-29 04:41:49,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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) [2023-11-29 04:41:49,733 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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) [2023-11-29 04:41:49,734 INFO L175 Difference]: Start difference. First operand has 116 places, 120 transitions, 368 flow. Second operand 6 states and 513 transitions. [2023-11-29 04:41:49,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 160 transitions, 656 flow [2023-11-29 04:41:49,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 160 transitions, 652 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 04:41:49,739 INFO L231 Difference]: Finished difference. Result has 124 places, 145 transitions, 552 flow [2023-11-29 04:41:49,739 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=552, PETRI_PLACES=124, PETRI_TRANSITIONS=145} [2023-11-29 04:41:49,740 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 19 predicate places. [2023-11-29 04:41:49,740 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 145 transitions, 552 flow [2023-11-29 04:41:49,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 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) [2023-11-29 04:41:49,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:49,740 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, 1] [2023-11-29 04:41:49,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 04:41:49,741 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:49,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:49,741 INFO L85 PathProgramCache]: Analyzing trace with hash 193078892, now seen corresponding path program 1 times [2023-11-29 04:41:49,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:49,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711406180] [2023-11-29 04:41:49,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:49,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:41:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:41:50,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:41:50,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711406180] [2023-11-29 04:41:50,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711406180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:41:50,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:41:50,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:41:50,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565698815] [2023-11-29 04:41:50,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:41:50,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:41:50,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:41:50,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:41:50,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:41:50,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 102 [2023-11-29 04:41:50,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 145 transitions, 552 flow. Second operand has 6 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 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) [2023-11-29 04:41:50,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:41:50,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 102 [2023-11-29 04:41:50,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:41:50,545 INFO L124 PetriNetUnfolderBase]: 204/863 cut-off events. [2023-11-29 04:41:50,545 INFO L125 PetriNetUnfolderBase]: For 450/470 co-relation queries the response was YES. [2023-11-29 04:41:50,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2199 conditions, 863 events. 204/863 cut-off events. For 450/470 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5234 event pairs, 16 based on Foata normal form. 22/883 useless extension candidates. Maximal degree in co-relation 2146. Up to 239 conditions per place. [2023-11-29 04:41:50,552 INFO L140 encePairwiseOnDemand]: 87/102 looper letters, 65 selfloop transitions, 51 changer transitions 24/219 dead transitions. [2023-11-29 04:41:50,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 219 transitions, 1178 flow [2023-11-29 04:41:50,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:41:50,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:41:50,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 563 transitions. [2023-11-29 04:41:50,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9199346405228758 [2023-11-29 04:41:50,555 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 563 transitions. [2023-11-29 04:41:50,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 563 transitions. [2023-11-29 04:41:50,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:41:50,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 563 transitions. [2023-11-29 04:41:50,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 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) [2023-11-29 04:41:50,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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) [2023-11-29 04:41:50,559 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 102.0) internal successors, (714), 7 states have internal predecessors, (714), 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) [2023-11-29 04:41:50,559 INFO L175 Difference]: Start difference. First operand has 124 places, 145 transitions, 552 flow. Second operand 6 states and 563 transitions. [2023-11-29 04:41:50,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 219 transitions, 1178 flow [2023-11-29 04:41:50,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 219 transitions, 1164 flow, removed 7 selfloop flow, removed 0 redundant places. [2023-11-29 04:41:50,568 INFO L231 Difference]: Finished difference. Result has 133 places, 179 transitions, 922 flow [2023-11-29 04:41:50,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=922, PETRI_PLACES=133, PETRI_TRANSITIONS=179} [2023-11-29 04:41:50,569 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 28 predicate places. [2023-11-29 04:41:50,569 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 179 transitions, 922 flow [2023-11-29 04:41:50,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.66666666666667) internal successors, (490), 6 states have internal predecessors, (490), 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) [2023-11-29 04:41:50,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:50,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:41:50,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 04:41:50,570 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:50,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:50,570 INFO L85 PathProgramCache]: Analyzing trace with hash -272726793, now seen corresponding path program 1 times [2023-11-29 04:41:50,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:50,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98794787] [2023-11-29 04:41:50,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:50,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:41:51,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:41:51,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:41:51,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98794787] [2023-11-29 04:41:51,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98794787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:41:51,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:41:51,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 04:41:51,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189748730] [2023-11-29 04:41:51,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:41:51,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:41:51,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:41:51,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:41:51,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:41:51,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 102 [2023-11-29 04:41:51,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 179 transitions, 922 flow. Second operand has 11 states, 11 states have (on average 67.27272727272727) internal successors, (740), 11 states have internal predecessors, (740), 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) [2023-11-29 04:41:51,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:41:51,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 102 [2023-11-29 04:41:51,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:41:52,057 INFO L124 PetriNetUnfolderBase]: 254/1013 cut-off events. [2023-11-29 04:41:52,057 INFO L125 PetriNetUnfolderBase]: For 1239/1264 co-relation queries the response was YES. [2023-11-29 04:41:52,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3001 conditions, 1013 events. 254/1013 cut-off events. For 1239/1264 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6650 event pairs, 24 based on Foata normal form. 14/1015 useless extension candidates. Maximal degree in co-relation 2936. Up to 239 conditions per place. [2023-11-29 04:41:52,064 INFO L140 encePairwiseOnDemand]: 89/102 looper letters, 99 selfloop transitions, 32 changer transitions 29/235 dead transitions. [2023-11-29 04:41:52,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 235 transitions, 1642 flow [2023-11-29 04:41:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:41:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 04:41:52,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1180 transitions. [2023-11-29 04:41:52,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6805074971164936 [2023-11-29 04:41:52,069 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1180 transitions. [2023-11-29 04:41:52,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1180 transitions. [2023-11-29 04:41:52,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:41:52,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1180 transitions. [2023-11-29 04:41:52,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 69.41176470588235) internal successors, (1180), 17 states have internal predecessors, (1180), 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) [2023-11-29 04:41:52,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 102.0) internal successors, (1836), 18 states have internal predecessors, (1836), 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) [2023-11-29 04:41:52,079 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 102.0) internal successors, (1836), 18 states have internal predecessors, (1836), 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) [2023-11-29 04:41:52,080 INFO L175 Difference]: Start difference. First operand has 133 places, 179 transitions, 922 flow. Second operand 17 states and 1180 transitions. [2023-11-29 04:41:52,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 235 transitions, 1642 flow [2023-11-29 04:41:52,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 235 transitions, 1588 flow, removed 13 selfloop flow, removed 4 redundant places. [2023-11-29 04:41:52,097 INFO L231 Difference]: Finished difference. Result has 144 places, 178 transitions, 933 flow [2023-11-29 04:41:52,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=933, PETRI_PLACES=144, PETRI_TRANSITIONS=178} [2023-11-29 04:41:52,098 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 39 predicate places. [2023-11-29 04:41:52,099 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 178 transitions, 933 flow [2023-11-29 04:41:52,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 67.27272727272727) internal successors, (740), 11 states have internal predecessors, (740), 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) [2023-11-29 04:41:52,099 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:52,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:41:52,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 04:41:52,100 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:52,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:52,100 INFO L85 PathProgramCache]: Analyzing trace with hash -566881248, now seen corresponding path program 1 times [2023-11-29 04:41:52,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:52,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824705487] [2023-11-29 04:41:52,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:52,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:41:52,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:41:52,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:41:52,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824705487] [2023-11-29 04:41:52,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824705487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:41:52,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:41:52,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 04:41:52,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4522356] [2023-11-29 04:41:52,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:41:52,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:41:52,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:41:52,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:41:52,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:41:52,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 102 [2023-11-29 04:41:52,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 178 transitions, 933 flow. Second operand has 11 states, 11 states have (on average 72.72727272727273) internal successors, (800), 11 states have internal predecessors, (800), 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) [2023-11-29 04:41:52,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:41:52,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 102 [2023-11-29 04:41:52,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:41:53,531 INFO L124 PetriNetUnfolderBase]: 234/840 cut-off events. [2023-11-29 04:41:53,531 INFO L125 PetriNetUnfolderBase]: For 1146/1180 co-relation queries the response was YES. [2023-11-29 04:41:53,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2856 conditions, 840 events. 234/840 cut-off events. For 1146/1180 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5066 event pairs, 13 based on Foata normal form. 18/857 useless extension candidates. Maximal degree in co-relation 2787. Up to 161 conditions per place. [2023-11-29 04:41:53,538 INFO L140 encePairwiseOnDemand]: 84/102 looper letters, 98 selfloop transitions, 66 changer transitions 26/259 dead transitions. [2023-11-29 04:41:53,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 259 transitions, 1861 flow [2023-11-29 04:41:53,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:41:53,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-29 04:41:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1325 transitions. [2023-11-29 04:41:53,544 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7641291810841984 [2023-11-29 04:41:53,544 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1325 transitions. [2023-11-29 04:41:53,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1325 transitions. [2023-11-29 04:41:53,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:41:53,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1325 transitions. [2023-11-29 04:41:53,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 77.94117647058823) internal successors, (1325), 17 states have internal predecessors, (1325), 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) [2023-11-29 04:41:53,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 102.0) internal successors, (1836), 18 states have internal predecessors, (1836), 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) [2023-11-29 04:41:53,556 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 102.0) internal successors, (1836), 18 states have internal predecessors, (1836), 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) [2023-11-29 04:41:53,556 INFO L175 Difference]: Start difference. First operand has 144 places, 178 transitions, 933 flow. Second operand 17 states and 1325 transitions. [2023-11-29 04:41:53,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 259 transitions, 1861 flow [2023-11-29 04:41:53,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 259 transitions, 1767 flow, removed 0 selfloop flow, removed 10 redundant places. [2023-11-29 04:41:53,575 INFO L231 Difference]: Finished difference. Result has 151 places, 191 transitions, 1224 flow [2023-11-29 04:41:53,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1224, PETRI_PLACES=151, PETRI_TRANSITIONS=191} [2023-11-29 04:41:53,577 INFO L281 CegarLoopForPetriNet]: 105 programPoint places, 46 predicate places. [2023-11-29 04:41:53,577 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 191 transitions, 1224 flow [2023-11-29 04:41:53,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 72.72727272727273) internal successors, (800), 11 states have internal predecessors, (800), 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) [2023-11-29 04:41:53,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:41:53,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:41:53,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 04:41:53,578 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 04:41:53,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:41:53,579 INFO L85 PathProgramCache]: Analyzing trace with hash -917281940, now seen corresponding path program 1 times [2023-11-29 04:41:53,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:41:53,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468587481] [2023-11-29 04:41:53,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:41:53,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:41:53,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:41:53,608 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:41:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:41:53,653 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:41:53,653 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:41:53,654 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-11-29 04:41:53,656 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-29 04:41:53,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-29 04:41:53,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-29 04:41:53,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-29 04:41:53,657 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-29 04:41:53,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-29 04:41:53,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-29 04:41:53,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-29 04:41:53,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-29 04:41:53,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-11-29 04:41:53,658 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-11-29 04:41:53,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-29 04:41:53,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-29 04:41:53,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-29 04:41:53,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 04:41:53,660 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:41:53,667 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 04:41:53,668 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:41:53,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc34 [2023-11-29 04:41:53,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-11-29 04:41:53,712 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated [2023-11-29 04:41:53,712 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc36 [2023-11-29 04:41:53,712 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated [2023-11-29 04:41:53,713 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-29 04:41:53,713 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-29 04:41:53,714 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 04:41:53,715 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-29 04:41:53,715 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 04:41:53,715 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-29 04:41:53,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:41:53 BasicIcfg [2023-11-29 04:41:53,724 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:41:53,724 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:41:53,724 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:41:53,724 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:41:53,725 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:41:45" (3/4) ... [2023-11-29 04:41:53,726 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:41:53,727 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:41:53,728 INFO L158 Benchmark]: Toolchain (without parser) took 8971.62ms. Allocated memory was 136.3MB in the beginning and 243.3MB in the end (delta: 107.0MB). Free memory was 95.0MB in the beginning and 137.6MB in the end (delta: -42.6MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2023-11-29 04:41:53,728 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:41:53,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 701.36ms. Allocated memory is still 136.3MB. Free memory was 94.7MB in the beginning and 97.0MB in the end (delta: -2.3MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2023-11-29 04:41:53,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.02ms. Allocated memory is still 136.3MB. Free memory was 97.0MB in the beginning and 94.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:41:53,729 INFO L158 Benchmark]: Boogie Preprocessor took 32.84ms. Allocated memory is still 136.3MB. Free memory was 94.5MB in the beginning and 92.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:41:53,730 INFO L158 Benchmark]: RCFGBuilder took 410.78ms. Allocated memory is still 136.3MB. Free memory was 92.4MB in the beginning and 75.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 04:41:53,730 INFO L158 Benchmark]: TraceAbstraction took 7765.85ms. Allocated memory was 136.3MB in the beginning and 243.3MB in the end (delta: 107.0MB). Free memory was 74.6MB in the beginning and 137.6MB in the end (delta: -63.0MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2023-11-29 04:41:53,730 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 243.3MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:41:53,732 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 100.7MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 701.36ms. Allocated memory is still 136.3MB. Free memory was 94.7MB in the beginning and 97.0MB in the end (delta: -2.3MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.02ms. Allocated memory is still 136.3MB. Free memory was 97.0MB in the beginning and 94.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.84ms. Allocated memory is still 136.3MB. Free memory was 94.5MB in the beginning and 92.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.78ms. Allocated memory is still 136.3MB. Free memory was 92.4MB in the beginning and 75.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7765.85ms. Allocated memory was 136.3MB in the beginning and 243.3MB in the end (delta: 107.0MB). Free memory was 74.6MB in the beginning and 137.6MB in the end (delta: -63.0MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 243.3MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc34 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~malloc36 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1241]: Data race detected [2023-11-29 04:41:53,754 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc34 [2023-11-29 04:41:53,754 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-11-29 04:41:53,754 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc36 [2023-11-29 04:41:53,754 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated [2023-11-29 04:41:53,755 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated [2023-11-29 04:41:53,755 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-29 04:41:53,755 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-29 04:41:53,756 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 04:41:53,757 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-29 04:41:53,757 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 04:41:53,757 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-29 04:41:53,772 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc34 [2023-11-29 04:41:53,772 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-11-29 04:41:53,773 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated [2023-11-29 04:41:53,773 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc36 [2023-11-29 04:41:53,773 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre38 could not be translated [2023-11-29 04:41:53,773 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-29 04:41:53,774 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-29 04:41:53,775 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-29 04:41:53,775 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-29 04:41:53,775 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-29 04:41:53,775 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated Data race detected The following path leads to a data race: [L1223] 0 int *x; VAL [x={0:0}] [L1224] 0 int *y; VAL [x={0:0}, y={0:0}] [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [m={1:0}, x={0:0}, y={0:0}] [L1234] 0 pthread_t id; VAL [id={5:0}, m={1:0}, x={0:0}, y={0:0}] [L1235] 0 x = malloc(sizeof(int)) VAL [id={5:0}, m={1:0}, x={-2:0}, y={0:0}] [L1236] 0 y = malloc(sizeof(int)) VAL [id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1237] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1239] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1239] EXPR 0 \read(*x) VAL [arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1239] 0 printf("%d\n",*x) VAL [arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1241] EXPR 0 *y VAL [arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1229] EXPR 1 *y VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1241] EXPR 0 *y VAL [arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1241] EXPR 0 \read(*y) VAL [arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1229] 1 *y = 8 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-2:0}, y={-3:0}] [L1241] 0 printf("%d\n",*y) VAL [arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-2:0}, y={-3:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: y = malloc(sizeof(int)) [1236] * C: *y = 8 [1229] * C: *x = 3 [1228] * C: x = malloc(sizeof(int)) [1235] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *x = 3 [1228] and C: printf("%d\n",*y) [1241] - UnprovableResult [Line: 1235]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 136 locations, 15 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: 7.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 825 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 600 mSDsluCounter, 428 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 386 mSDsCounter, 235 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2891 IncrementalHoareTripleChecker+Invalid, 3126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 235 mSolverCounterUnsat, 42 mSDtfsCounter, 2891 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1224occurred in iteration=11, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 587 NumberOfCodeBlocks, 587 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 501 ConstructedInterpolants, 0 QuantifiedInterpolants, 1628 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-29 04:41:53,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5bd4f63-72a5-4a3d-8da4-26d06ee2e6ae/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE