./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.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_6068c588-eadd-43d7-9266-a74779384ec7/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/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_6068c588-eadd-43d7-9266-a74779384ec7/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/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_6068c588-eadd-43d7-9266-a74779384ec7/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 bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:40:02,278 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:40:02,348 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-28 20:40:02,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:40:02,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:40:02,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:40:02,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:40:02,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:40:02,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:40:02,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:40:02,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:40:02,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:40:02,381 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:40:02,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:40:02,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:40:02,382 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:40:02,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:40:02,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:40:02,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:40:02,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:40:02,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:40:02,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:40:02,386 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-28 20:40:02,386 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:40:02,386 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:40:02,387 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:40:02,387 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:40:02,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:40:02,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:40:02,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:40:02,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:40:02,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:40:02,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:40:02,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:40:02,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:40:02,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:40:02,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:40:02,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:40:02,392 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:40:02,392 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:40:02,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:40:02,392 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_6068c588-eadd-43d7-9266-a74779384ec7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2023-11-28 20:40:02,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:40:02,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:40:02,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:40:02,646 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:40:02,646 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:40:02,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2023-11-28 20:40:05,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:40:05,661 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:40:05,662 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2023-11-28 20:40:05,685 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/bin/uautomizer-verify-BQ2R08f2Ya/data/5413fd786/f33522ca9eaa4e40be73dfe586e653d6/FLAG5ea82bdc5 [2023-11-28 20:40:05,699 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/bin/uautomizer-verify-BQ2R08f2Ya/data/5413fd786/f33522ca9eaa4e40be73dfe586e653d6 [2023-11-28 20:40:05,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:40:05,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:40:05,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:40:05,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:40:05,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:40:05,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:40:05" (1/1) ... [2023-11-28 20:40:05,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f3631af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:05, skipping insertion in model container [2023-11-28 20:40:05,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:40:05" (1/1) ... [2023-11-28 20:40:05,773 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:40:06,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:40:06,466 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:40:06,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:40:06,695 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:40:06,696 WARN L675 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:40:06,696 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:40:06,696 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:40:06,703 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:40:06,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06 WrapperNode [2023-11-28 20:40:06,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:40:06,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:40:06,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:40:06,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:40:06,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,742 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,773 INFO L138 Inliner]: procedures = 525, calls = 69, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 151 [2023-11-28 20:40:06,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:40:06,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:40:06,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:40:06,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:40:06,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,803 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,811 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:40:06,820 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:40:06,820 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:40:06,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:40:06,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (1/1) ... [2023-11-28 20:40:06,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:40:06,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:40:06,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:40:06,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:40:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-11-28 20:40:06,884 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-11-28 20:40:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-11-28 20:40:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-11-28 20:40:06,884 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-11-28 20:40:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-28 20:40:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:40:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-28 20:40:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-28 20:40:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:40:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:40:06,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:40:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-28 20:40:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:40:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-11-28 20:40:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-28 20:40:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-28 20:40:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-28 20:40:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-28 20:40:06,888 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 20:40:07,158 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:40:07,160 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:40:07,499 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:40:07,522 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:40:07,522 INFO L309 CfgBuilder]: Removed 19 assume(true) statements. [2023-11-28 20:40:07,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:40:07 BoogieIcfgContainer [2023-11-28 20:40:07,524 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:40:07,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:40:07,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:40:07,529 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:40:07,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:40:05" (1/3) ... [2023-11-28 20:40:07,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51140a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:40:07, skipping insertion in model container [2023-11-28 20:40:07,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:40:06" (2/3) ... [2023-11-28 20:40:07,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51140a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:40:07, skipping insertion in model container [2023-11-28 20:40:07,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:40:07" (3/3) ... [2023-11-28 20:40:07,531 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2023-11-28 20:40:07,538 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-28 20:40:07,545 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:40:07,545 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-28 20:40:07,545 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 20:40:07,625 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-28 20:40:07,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 306 transitions, 626 flow [2023-11-28 20:40:07,772 INFO L124 PetriNetUnfolderBase]: 31/304 cut-off events. [2023-11-28 20:40:07,773 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-28 20:40:07,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 304 events. 31/304 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 828 event pairs, 0 based on Foata normal form. 0/255 useless extension candidates. Maximal degree in co-relation 199. Up to 5 conditions per place. [2023-11-28 20:40:07,784 INFO L82 GeneralOperation]: Start removeDead. Operand has 282 places, 306 transitions, 626 flow [2023-11-28 20:40:07,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 292 transitions, 596 flow [2023-11-28 20:40:07,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:40:07,811 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;@7c0cc418, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:40:07,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-28 20:40:07,822 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 20:40:07,822 INFO L124 PetriNetUnfolderBase]: 0/47 cut-off events. [2023-11-28 20:40:07,822 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:40:07,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:40:07,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:07,824 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-28 20:40:07,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:07,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1785536043, now seen corresponding path program 1 times [2023-11-28 20:40:07,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:07,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605777265] [2023-11-28 20:40:07,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:07,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:08,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:08,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:40:08,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:40:08,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605777265] [2023-11-28 20:40:08,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605777265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:08,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:08,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:40:08,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112960319] [2023-11-28 20:40:08,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:08,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:40:08,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:40:08,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:40:08,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:40:08,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 306 [2023-11-28 20:40:08,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 292 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 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) [2023-11-28 20:40:08,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:40:08,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 306 [2023-11-28 20:40:08,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:40:08,455 INFO L124 PetriNetUnfolderBase]: 27/583 cut-off events. [2023-11-28 20:40:08,455 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-28 20:40:08,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 583 events. 27/583 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3097 event pairs, 15 based on Foata normal form. 97/605 useless extension candidates. Maximal degree in co-relation 474. Up to 48 conditions per place. [2023-11-28 20:40:08,463 INFO L140 encePairwiseOnDemand]: 285/306 looper letters, 13 selfloop transitions, 2 changer transitions 8/258 dead transitions. [2023-11-28 20:40:08,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 258 transitions, 558 flow [2023-11-28 20:40:08,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:40:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:40:08,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2023-11-28 20:40:08,481 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8932461873638344 [2023-11-28 20:40:08,481 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2023-11-28 20:40:08,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2023-11-28 20:40:08,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:40:08,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2023-11-28 20:40:08,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 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) [2023-11-28 20:40:08,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:08,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:08,503 INFO L175 Difference]: Start difference. First operand has 270 places, 292 transitions, 596 flow. Second operand 3 states and 820 transitions. [2023-11-28 20:40:08,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 258 transitions, 558 flow [2023-11-28 20:40:08,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 258 transitions, 550 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-28 20:40:08,516 INFO L231 Difference]: Finished difference. Result has 259 places, 250 transitions, 508 flow [2023-11-28 20:40:08,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=259, PETRI_TRANSITIONS=250} [2023-11-28 20:40:08,522 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -11 predicate places. [2023-11-28 20:40:08,522 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 250 transitions, 508 flow [2023-11-28 20:40:08,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 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) [2023-11-28 20:40:08,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:40:08,524 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] [2023-11-28 20:40:08,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:40:08,524 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-28 20:40:08,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:08,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1543577995, now seen corresponding path program 1 times [2023-11-28 20:40:08,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:08,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34488850] [2023-11-28 20:40:08,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:08,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:08,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:40:08,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:40:08,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34488850] [2023-11-28 20:40:08,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34488850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:08,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:08,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:40:08,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007051801] [2023-11-28 20:40:08,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:08,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:40:08,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:40:08,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:40:08,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:40:08,668 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 306 [2023-11-28 20:40:08,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 250 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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) [2023-11-28 20:40:08,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:40:08,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 306 [2023-11-28 20:40:08,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:40:08,908 INFO L124 PetriNetUnfolderBase]: 248/1480 cut-off events. [2023-11-28 20:40:08,908 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-28 20:40:08,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1924 conditions, 1480 events. 248/1480 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 11919 event pairs, 96 based on Foata normal form. 1/1413 useless extension candidates. Maximal degree in co-relation 1869. Up to 407 conditions per place. [2023-11-28 20:40:08,917 INFO L140 encePairwiseOnDemand]: 290/306 looper letters, 25 selfloop transitions, 7 changer transitions 7/255 dead transitions. [2023-11-28 20:40:08,917 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 255 transitions, 592 flow [2023-11-28 20:40:08,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:40:08,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:40:08,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 785 transitions. [2023-11-28 20:40:08,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.855119825708061 [2023-11-28 20:40:08,920 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 785 transitions. [2023-11-28 20:40:08,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 785 transitions. [2023-11-28 20:40:08,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:40:08,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 785 transitions. [2023-11-28 20:40:08,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 261.6666666666667) internal successors, (785), 3 states have internal predecessors, (785), 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) [2023-11-28 20:40:08,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:08,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:08,926 INFO L175 Difference]: Start difference. First operand has 259 places, 250 transitions, 508 flow. Second operand 3 states and 785 transitions. [2023-11-28 20:40:08,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 255 transitions, 592 flow [2023-11-28 20:40:08,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 255 transitions, 588 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:40:08,934 INFO L231 Difference]: Finished difference. Result has 244 places, 242 transitions, 518 flow [2023-11-28 20:40:08,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=518, PETRI_PLACES=244, PETRI_TRANSITIONS=242} [2023-11-28 20:40:08,935 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -26 predicate places. [2023-11-28 20:40:08,935 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 242 transitions, 518 flow [2023-11-28 20:40:08,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 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) [2023-11-28 20:40:08,936 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:40:08,936 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] [2023-11-28 20:40:08,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:40:08,937 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-28 20:40:08,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:08,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2043407950, now seen corresponding path program 1 times [2023-11-28 20:40:08,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:08,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420815528] [2023-11-28 20:40:08,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:08,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:09,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:40:09,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:40:09,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420815528] [2023-11-28 20:40:09,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420815528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:09,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:09,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:40:09,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106709811] [2023-11-28 20:40:09,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:09,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:40:09,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:40:09,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:40:09,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:40:09,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 306 [2023-11-28 20:40:09,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 242 transitions, 518 flow. Second operand has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 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) [2023-11-28 20:40:09,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:40:09,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 306 [2023-11-28 20:40:09,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:40:09,175 INFO L124 PetriNetUnfolderBase]: 71/955 cut-off events. [2023-11-28 20:40:09,175 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-28 20:40:09,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 955 events. 71/955 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6680 event pairs, 20 based on Foata normal form. 0/874 useless extension candidates. Maximal degree in co-relation 575. Up to 74 conditions per place. [2023-11-28 20:40:09,181 INFO L140 encePairwiseOnDemand]: 302/306 looper letters, 13 selfloop transitions, 2 changer transitions 0/243 dead transitions. [2023-11-28 20:40:09,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 243 transitions, 551 flow [2023-11-28 20:40:09,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:40:09,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:40:09,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 809 transitions. [2023-11-28 20:40:09,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8812636165577342 [2023-11-28 20:40:09,184 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 809 transitions. [2023-11-28 20:40:09,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 809 transitions. [2023-11-28 20:40:09,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:40:09,185 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 809 transitions. [2023-11-28 20:40:09,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.6666666666667) internal successors, (809), 3 states have internal predecessors, (809), 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) [2023-11-28 20:40:09,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:09,190 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:09,190 INFO L175 Difference]: Start difference. First operand has 244 places, 242 transitions, 518 flow. Second operand 3 states and 809 transitions. [2023-11-28 20:40:09,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 243 transitions, 551 flow [2023-11-28 20:40:09,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 243 transitions, 551 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 20:40:09,195 INFO L231 Difference]: Finished difference. Result has 240 places, 242 transitions, 528 flow [2023-11-28 20:40:09,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=528, PETRI_PLACES=240, PETRI_TRANSITIONS=242} [2023-11-28 20:40:09,196 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -30 predicate places. [2023-11-28 20:40:09,197 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 242 transitions, 528 flow [2023-11-28 20:40:09,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 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) [2023-11-28 20:40:09,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:40:09,198 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] [2023-11-28 20:40:09,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:40:09,198 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-28 20:40:09,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:09,199 INFO L85 PathProgramCache]: Analyzing trace with hash -662509154, now seen corresponding path program 1 times [2023-11-28 20:40:09,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:09,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150369690] [2023-11-28 20:40:09,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:09,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:09,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:40:09,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:40:09,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150369690] [2023-11-28 20:40:09,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150369690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:09,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:09,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:40:09,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39517634] [2023-11-28 20:40:09,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:09,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:40:09,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:40:09,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:40:09,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:40:09,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 306 [2023-11-28 20:40:09,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 242 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 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) [2023-11-28 20:40:09,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:40:09,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 306 [2023-11-28 20:40:09,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:40:09,610 INFO L124 PetriNetUnfolderBase]: 176/2030 cut-off events. [2023-11-28 20:40:09,610 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-28 20:40:09,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2502 conditions, 2030 events. 176/2030 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 16656 event pairs, 31 based on Foata normal form. 0/1872 useless extension candidates. Maximal degree in co-relation 2285. Up to 160 conditions per place. [2023-11-28 20:40:09,623 INFO L140 encePairwiseOnDemand]: 295/306 looper letters, 24 selfloop transitions, 8 changer transitions 0/256 dead transitions. [2023-11-28 20:40:09,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 256 transitions, 622 flow [2023-11-28 20:40:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:40:09,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:40:09,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 815 transitions. [2023-11-28 20:40:09,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8877995642701525 [2023-11-28 20:40:09,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 815 transitions. [2023-11-28 20:40:09,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 815 transitions. [2023-11-28 20:40:09,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:40:09,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 815 transitions. [2023-11-28 20:40:09,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 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) [2023-11-28 20:40:09,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:09,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:09,632 INFO L175 Difference]: Start difference. First operand has 240 places, 242 transitions, 528 flow. Second operand 3 states and 815 transitions. [2023-11-28 20:40:09,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 256 transitions, 622 flow [2023-11-28 20:40:09,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 256 transitions, 622 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 20:40:09,638 INFO L231 Difference]: Finished difference. Result has 244 places, 250 transitions, 598 flow [2023-11-28 20:40:09,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=244, PETRI_TRANSITIONS=250} [2023-11-28 20:40:09,640 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -26 predicate places. [2023-11-28 20:40:09,640 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 250 transitions, 598 flow [2023-11-28 20:40:09,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 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) [2023-11-28 20:40:09,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:40:09,641 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] [2023-11-28 20:40:09,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:40:09,641 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-28 20:40:09,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:09,642 INFO L85 PathProgramCache]: Analyzing trace with hash -292457774, now seen corresponding path program 1 times [2023-11-28 20:40:09,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:09,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805425984] [2023-11-28 20:40:09,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:09,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:10,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:40:10,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:40:10,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805425984] [2023-11-28 20:40:10,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805425984] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:10,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:10,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:40:10,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512309605] [2023-11-28 20:40:10,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:10,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:40:10,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:40:10,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:40:10,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:40:10,341 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 306 [2023-11-28 20:40:10,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 250 transitions, 598 flow. Second operand has 6 states, 6 states have (on average 262.5) internal successors, (1575), 6 states have internal predecessors, (1575), 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) [2023-11-28 20:40:10,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:40:10,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 306 [2023-11-28 20:40:10,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:40:10,939 INFO L124 PetriNetUnfolderBase]: 495/4085 cut-off events. [2023-11-28 20:40:10,939 INFO L125 PetriNetUnfolderBase]: For 134/183 co-relation queries the response was YES. [2023-11-28 20:40:10,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5435 conditions, 4085 events. 495/4085 cut-off events. For 134/183 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 41169 event pairs, 60 based on Foata normal form. 16/3743 useless extension candidates. Maximal degree in co-relation 4929. Up to 236 conditions per place. [2023-11-28 20:40:10,976 INFO L140 encePairwiseOnDemand]: 301/306 looper letters, 26 selfloop transitions, 4 changer transitions 0/265 dead transitions. [2023-11-28 20:40:10,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 265 transitions, 688 flow [2023-11-28 20:40:10,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:40:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:40:10,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1597 transitions. [2023-11-28 20:40:10,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8698257080610022 [2023-11-28 20:40:10,982 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1597 transitions. [2023-11-28 20:40:10,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1597 transitions. [2023-11-28 20:40:10,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:40:10,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1597 transitions. [2023-11-28 20:40:10,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 266.1666666666667) internal successors, (1597), 6 states have internal predecessors, (1597), 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) [2023-11-28 20:40:10,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 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) [2023-11-28 20:40:10,995 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 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) [2023-11-28 20:40:10,995 INFO L175 Difference]: Start difference. First operand has 244 places, 250 transitions, 598 flow. Second operand 6 states and 1597 transitions. [2023-11-28 20:40:10,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 265 transitions, 688 flow [2023-11-28 20:40:11,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 265 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:40:11,004 INFO L231 Difference]: Finished difference. Result has 246 places, 249 transitions, 588 flow [2023-11-28 20:40:11,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=588, PETRI_PLACES=246, PETRI_TRANSITIONS=249} [2023-11-28 20:40:11,005 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -24 predicate places. [2023-11-28 20:40:11,005 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 249 transitions, 588 flow [2023-11-28 20:40:11,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 262.5) internal successors, (1575), 6 states have internal predecessors, (1575), 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) [2023-11-28 20:40:11,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:40:11,007 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, 1] [2023-11-28 20:40:11,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 20:40:11,007 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-28 20:40:11,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:11,008 INFO L85 PathProgramCache]: Analyzing trace with hash 37930632, now seen corresponding path program 1 times [2023-11-28 20:40:11,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:11,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108837601] [2023-11-28 20:40:11,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:11,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:40:11,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:40:11,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108837601] [2023-11-28 20:40:11,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108837601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:11,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:11,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:40:11,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262333213] [2023-11-28 20:40:11,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:11,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:40:11,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:40:11,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:40:11,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:40:11,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 306 [2023-11-28 20:40:11,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 249 transitions, 588 flow. Second operand has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 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) [2023-11-28 20:40:11,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:40:11,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 306 [2023-11-28 20:40:11,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:40:11,551 INFO L124 PetriNetUnfolderBase]: 248/2557 cut-off events. [2023-11-28 20:40:11,551 INFO L125 PetriNetUnfolderBase]: For 124/138 co-relation queries the response was YES. [2023-11-28 20:40:11,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3347 conditions, 2557 events. 248/2557 cut-off events. For 124/138 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 22322 event pairs, 53 based on Foata normal form. 6/2372 useless extension candidates. Maximal degree in co-relation 3123. Up to 254 conditions per place. [2023-11-28 20:40:11,572 INFO L140 encePairwiseOnDemand]: 299/306 looper letters, 22 selfloop transitions, 10 changer transitions 0/260 dead transitions. [2023-11-28 20:40:11,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 260 transitions, 687 flow [2023-11-28 20:40:11,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:40:11,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:40:11,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2023-11-28 20:40:11,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.883442265795207 [2023-11-28 20:40:11,575 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2023-11-28 20:40:11,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2023-11-28 20:40:11,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:40:11,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2023-11-28 20:40:11,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 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) [2023-11-28 20:40:11,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:11,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:11,582 INFO L175 Difference]: Start difference. First operand has 246 places, 249 transitions, 588 flow. Second operand 3 states and 811 transitions. [2023-11-28 20:40:11,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 260 transitions, 687 flow [2023-11-28 20:40:11,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 260 transitions, 680 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-28 20:40:11,589 INFO L231 Difference]: Finished difference. Result has 246 places, 257 transitions, 667 flow [2023-11-28 20:40:11,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=667, PETRI_PLACES=246, PETRI_TRANSITIONS=257} [2023-11-28 20:40:11,591 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -24 predicate places. [2023-11-28 20:40:11,591 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 257 transitions, 667 flow [2023-11-28 20:40:11,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 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) [2023-11-28 20:40:11,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:40:11,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:11,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-28 20:40:11,592 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting monitor_threadErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-28 20:40:11,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:11,593 INFO L85 PathProgramCache]: Analyzing trace with hash 939740429, now seen corresponding path program 1 times [2023-11-28 20:40:11,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:11,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948861711] [2023-11-28 20:40:11,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:11,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:11,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:40:11,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:40:11,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948861711] [2023-11-28 20:40:11,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948861711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:11,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:11,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:40:11,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529824730] [2023-11-28 20:40:11,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:11,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:40:11,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:40:11,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:40:11,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:40:11,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 306 [2023-11-28 20:40:11,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 257 transitions, 667 flow. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 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) [2023-11-28 20:40:11,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:40:11,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 306 [2023-11-28 20:40:11,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:40:12,111 INFO L124 PetriNetUnfolderBase]: 261/2735 cut-off events. [2023-11-28 20:40:12,111 INFO L125 PetriNetUnfolderBase]: For 466/475 co-relation queries the response was YES. [2023-11-28 20:40:12,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3755 conditions, 2735 events. 261/2735 cut-off events. For 466/475 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 24490 event pairs, 49 based on Foata normal form. 1/2536 useless extension candidates. Maximal degree in co-relation 3523. Up to 267 conditions per place. [2023-11-28 20:40:12,129 INFO L140 encePairwiseOnDemand]: 300/306 looper letters, 26 selfloop transitions, 9 changer transitions 0/265 dead transitions. [2023-11-28 20:40:12,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 265 transitions, 768 flow [2023-11-28 20:40:12,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:40:12,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 20:40:12,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 810 transitions. [2023-11-28 20:40:12,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2023-11-28 20:40:12,134 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 810 transitions. [2023-11-28 20:40:12,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 810 transitions. [2023-11-28 20:40:12,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:40:12,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 810 transitions. [2023-11-28 20:40:12,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 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) [2023-11-28 20:40:12,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:12,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 306.0) internal successors, (1224), 4 states have internal predecessors, (1224), 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) [2023-11-28 20:40:12,142 INFO L175 Difference]: Start difference. First operand has 246 places, 257 transitions, 667 flow. Second operand 3 states and 810 transitions. [2023-11-28 20:40:12,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 265 transitions, 768 flow [2023-11-28 20:40:12,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 265 transitions, 744 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:40:12,150 INFO L231 Difference]: Finished difference. Result has 248 places, 262 transitions, 715 flow [2023-11-28 20:40:12,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=715, PETRI_PLACES=248, PETRI_TRANSITIONS=262} [2023-11-28 20:40:12,151 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -22 predicate places. [2023-11-28 20:40:12,151 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 262 transitions, 715 flow [2023-11-28 20:40:12,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 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) [2023-11-28 20:40:12,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:40:12,152 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:12,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 20:40:12,153 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-28 20:40:12,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:12,153 INFO L85 PathProgramCache]: Analyzing trace with hash 927112022, now seen corresponding path program 1 times [2023-11-28 20:40:12,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:12,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079937778] [2023-11-28 20:40:12,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:12,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:40:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:40:12,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:40:12,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079937778] [2023-11-28 20:40:12,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079937778] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:40:12,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:40:12,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:40:12,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814663430] [2023-11-28 20:40:12,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:40:12,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:40:12,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:40:12,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:40:12,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:40:12,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 306 [2023-11-28 20:40:12,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 262 transitions, 715 flow. Second operand has 6 states, 6 states have (on average 262.6666666666667) internal successors, (1576), 6 states have internal predecessors, (1576), 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) [2023-11-28 20:40:12,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:40:12,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 306 [2023-11-28 20:40:12,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:40:13,158 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([778] L1830-->L1830-1: Formula: (= |v_#race~counter~0_4| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_4|} AuxVars[] AssignedVars[#race~counter~0][216], [260#L1830-1true, 34#L1843-3true, 289#true, Black: 320#(= |#race~counter~0| |monitor_threadThread1of1ForFork1_#t~nondet55|), 324#true, Black: 294#true, 129#L1808-7true, 296#(= |#race~end_time~0| 0), 318#true, Black: 314#(= |#race~counter~0| |counter_threadThread1of1ForFork0_#t~nondet37|), Black: 299#true]) [2023-11-28 20:40:13,158 INFO L294 olderBase$Statistics]: this new event has 121 ancestors and is cut-off event [2023-11-28 20:40:13,158 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-28 20:40:13,158 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2023-11-28 20:40:13,158 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2023-11-28 20:40:13,176 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([786] L1825-->L1825-1: Formula: (= |v_#race~counter~0_1| 0) InVars {} OutVars{#race~counter~0=|v_#race~counter~0_1|} AuxVars[] AssignedVars[#race~counter~0][226], [34#L1843-3true, 289#true, Black: 320#(= |#race~counter~0| |monitor_threadThread1of1ForFork1_#t~nondet55|), 324#true, 161#L1825-1true, Black: 294#true, 129#L1808-7true, 296#(= |#race~end_time~0| 0), 318#true, Black: 314#(= |#race~counter~0| |counter_threadThread1of1ForFork0_#t~nondet37|), Black: 299#true]) [2023-11-28 20:40:13,176 INFO L294 olderBase$Statistics]: this new event has 123 ancestors and is cut-off event [2023-11-28 20:40:13,176 INFO L297 olderBase$Statistics]: existing Event has 123 ancestors and is cut-off event [2023-11-28 20:40:13,176 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2023-11-28 20:40:13,176 INFO L297 olderBase$Statistics]: existing Event has 102 ancestors and is cut-off event [2023-11-28 20:40:13,254 INFO L124 PetriNetUnfolderBase]: 243/2534 cut-off events. [2023-11-28 20:40:13,254 INFO L125 PetriNetUnfolderBase]: For 273/307 co-relation queries the response was YES. [2023-11-28 20:40:13,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3437 conditions, 2534 events. 243/2534 cut-off events. For 273/307 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 22258 event pairs, 27 based on Foata normal form. 4/2367 useless extension candidates. Maximal degree in co-relation 3205. Up to 202 conditions per place. [2023-11-28 20:40:13,266 INFO L140 encePairwiseOnDemand]: 301/306 looper letters, 18 selfloop transitions, 4 changer transitions 0/269 dead transitions. [2023-11-28 20:40:13,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 269 transitions, 773 flow [2023-11-28 20:40:13,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:40:13,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:40:13,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1589 transitions. [2023-11-28 20:40:13,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8654684095860566 [2023-11-28 20:40:13,272 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1589 transitions. [2023-11-28 20:40:13,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1589 transitions. [2023-11-28 20:40:13,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:40:13,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1589 transitions. [2023-11-28 20:40:13,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 264.8333333333333) internal successors, (1589), 6 states have internal predecessors, (1589), 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) [2023-11-28 20:40:13,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 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) [2023-11-28 20:40:13,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 306.0) internal successors, (2142), 7 states have internal predecessors, (2142), 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) [2023-11-28 20:40:13,284 INFO L175 Difference]: Start difference. First operand has 248 places, 262 transitions, 715 flow. Second operand 6 states and 1589 transitions. [2023-11-28 20:40:13,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 269 transitions, 773 flow [2023-11-28 20:40:13,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 269 transitions, 755 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-28 20:40:13,291 INFO L231 Difference]: Finished difference. Result has 250 places, 261 transitions, 703 flow [2023-11-28 20:40:13,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=306, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=703, PETRI_PLACES=250, PETRI_TRANSITIONS=261} [2023-11-28 20:40:13,293 INFO L281 CegarLoopForPetriNet]: 270 programPoint places, -20 predicate places. [2023-11-28 20:40:13,293 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 261 transitions, 703 flow [2023-11-28 20:40:13,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 262.6666666666667) internal successors, (1576), 6 states have internal predecessors, (1576), 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) [2023-11-28 20:40:13,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:40:13,294 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:13,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-28 20:40:13,295 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr4ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-11-28 20:40:13,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:13,295 INFO L85 PathProgramCache]: Analyzing trace with hash -2039875907, now seen corresponding path program 1 times [2023-11-28 20:40:13,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:40:13,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105683456] [2023-11-28 20:40:13,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:40:13,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:40:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:40:13,333 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:40:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:40:13,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:40:13,392 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 20:40:13,393 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2023-11-28 20:40:13,394 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2023-11-28 20:40:13,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2023-11-28 20:40:13,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2023-11-28 20:40:13,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2023-11-28 20:40:13,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2023-11-28 20:40:13,395 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2023-11-28 20:40:13,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2023-11-28 20:40:13,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2023-11-28 20:40:13,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2023-11-28 20:40:13,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2023-11-28 20:40:13,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2023-11-28 20:40:13,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2023-11-28 20:40:13,396 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2023-11-28 20:40:13,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2023-11-28 20:40:13,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2023-11-28 20:40:13,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2023-11-28 20:40:13,397 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2023-11-28 20:40:13,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2023-11-28 20:40:13,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2023-11-28 20:40:13,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2023-11-28 20:40:13,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2023-11-28 20:40:13,398 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2023-11-28 20:40:13,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2023-11-28 20:40:13,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2023-11-28 20:40:13,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2023-11-28 20:40:13,399 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2023-11-28 20:40:13,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2023-11-28 20:40:13,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2023-11-28 20:40:13,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2023-11-28 20:40:13,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2023-11-28 20:40:13,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-28 20:40:13,401 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:13,407 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-28 20:40:13,408 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:40:13,478 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret57 could not be translated [2023-11-28 20:40:13,479 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet58 could not be translated [2023-11-28 20:40:13,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre59 could not be translated [2023-11-28 20:40:13,480 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated [2023-11-28 20:40:13,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated [2023-11-28 20:40:13,481 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated [2023-11-28 20:40:13,482 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre59 could not be translated [2023-11-28 20:40:13,483 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet60 could not be translated [2023-11-28 20:40:13,484 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre64 could not be translated [2023-11-28 20:40:13,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-28 20:40:13,485 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-28 20:40:13,486 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet45 could not be translated [2023-11-28 20:40:13,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post36 could not be translated [2023-11-28 20:40:13,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated [2023-11-28 20:40:13,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post36 could not be translated [2023-11-28 20:40:13,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated [2023-11-28 20:40:13,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:40:13 BasicIcfg [2023-11-28 20:40:13,497 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:40:13,497 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:40:13,498 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:40:13,498 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:40:13,498 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:40:07" (3/4) ... [2023-11-28 20:40:13,500 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 20:40:13,501 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:40:13,501 INFO L158 Benchmark]: Toolchain (without parser) took 7798.33ms. Allocated memory was 146.8MB in the beginning and 287.3MB in the end (delta: 140.5MB). Free memory was 104.9MB in the beginning and 130.2MB in the end (delta: -25.3MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB. [2023-11-28 20:40:13,501 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:40:13,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 999.32ms. Allocated memory is still 146.8MB. Free memory was 104.9MB in the beginning and 59.3MB in the end (delta: 45.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-28 20:40:13,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.28ms. Allocated memory is still 146.8MB. Free memory was 59.3MB in the beginning and 55.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:40:13,502 INFO L158 Benchmark]: Boogie Preprocessor took 45.25ms. Allocated memory is still 146.8MB. Free memory was 55.9MB in the beginning and 52.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:40:13,503 INFO L158 Benchmark]: RCFGBuilder took 704.67ms. Allocated memory is still 146.8MB. Free memory was 52.7MB in the beginning and 96.6MB in the end (delta: -43.9MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2023-11-28 20:40:13,503 INFO L158 Benchmark]: TraceAbstraction took 5970.31ms. Allocated memory was 146.8MB in the beginning and 287.3MB in the end (delta: 140.5MB). Free memory was 96.1MB in the beginning and 130.2MB in the end (delta: -34.1MB). Peak memory consumption was 108.5MB. Max. memory is 16.1GB. [2023-11-28 20:40:13,503 INFO L158 Benchmark]: Witness Printer took 3.16ms. Allocated memory is still 287.3MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:40:13,506 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 999.32ms. Allocated memory is still 146.8MB. Free memory was 104.9MB in the beginning and 59.3MB in the end (delta: 45.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.28ms. Allocated memory is still 146.8MB. Free memory was 59.3MB in the beginning and 55.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.25ms. Allocated memory is still 146.8MB. Free memory was 55.9MB in the beginning and 52.7MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 704.67ms. Allocated memory is still 146.8MB. Free memory was 52.7MB in the beginning and 96.6MB in the end (delta: -43.9MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5970.31ms. Allocated memory was 146.8MB in the beginning and 287.3MB in the end (delta: 140.5MB). Free memory was 96.1MB in the beginning and 130.2MB in the end (delta: -34.1MB). Peak memory consumption was 108.5MB. Max. memory is 16.1GB. * Witness Printer took 3.16ms. Allocated memory is still 287.3MB. Free memory is still 130.2MB. 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: IdentifierExpression #t~ret57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre59 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet37 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: 1830]: Data race detected [2023-11-28 20:40:13,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret57 could not be translated [2023-11-28 20:40:13,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet58 could not be translated [2023-11-28 20:40:13,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre59 could not be translated [2023-11-28 20:40:13,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated [2023-11-28 20:40:13,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated [2023-11-28 20:40:13,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated [2023-11-28 20:40:13,544 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre59 could not be translated [2023-11-28 20:40:13,544 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet60 could not be translated [2023-11-28 20:40:13,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre64 could not be translated [2023-11-28 20:40:13,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-28 20:40:13,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-28 20:40:13,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet45 could not be translated [2023-11-28 20:40:13,547 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post36 could not be translated [2023-11-28 20:40:13,548 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated [2023-11-28 20:40:13,548 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post36 could not be translated [2023-11-28 20:40:13,548 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated [2023-11-28 20:40:13,575 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet58 could not be translated [2023-11-28 20:40:13,575 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret57 could not be translated [2023-11-28 20:40:13,575 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre59 could not be translated [2023-11-28 20:40:13,576 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated [2023-11-28 20:40:13,576 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret30 could not be translated [2023-11-28 20:40:13,576 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated [2023-11-28 20:40:13,577 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet60 could not be translated [2023-11-28 20:40:13,577 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre59 could not be translated [2023-11-28 20:40:13,578 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre64 could not be translated [2023-11-28 20:40:13,579 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-28 20:40:13,579 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret43 could not be translated [2023-11-28 20:40:13,579 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet45 could not be translated [2023-11-28 20:40:13,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post36 could not be translated [2023-11-28 20:40:13,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated [2023-11-28 20:40:13,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post36 could not be translated [2023-11-28 20:40:13,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet37 could not be translated Data race detected The following path leads to a data race: [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex={25:0}] [L1798] 0 long counter; VAL [counter=0, mutex={25:0}] [L1799] 0 time_t end_time; VAL [counter=0, end_time=0, mutex={25:0}] [L1836] 0 int status; VAL [\old(argc)=1150, argc=1150, argv={1154:1153}, counter=0, end_time=0, mutex={25:0}] [L1837] 0 pthread_t counter_thread_id; VAL [\old(argc)=1150, argc=1150, argv={1154:1153}, counter=0, counter_thread_id={27:0}, end_time=0, mutex={25:0}] [L1838] 0 pthread_t monitor_thread_id; VAL [\old(argc)=1150, argc=1150, argv={1154:1153}, counter=0, counter_thread_id={27:0}, end_time=0, monitor_thread_id={26:0}, mutex={25:0}] [L1839] 0 end_time = time (((void *)0)) + 60 VAL [\old(argc)=1150, argc=1150, argv={1154:1153}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}] [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1150, arg={0:0}, argc=1150, argv={1154:1153}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}] [L1801] 1 int status; VAL [arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}] [L1802] 1 int spin; VAL [arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}] [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}] [L1803] COND TRUE 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}] [L1804] 1 status = pthread_mutex_lock (&mutex) VAL [arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}, status=0] [L1805] COND FALSE 1 !(status != 0) VAL [arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}, status=0] [L1807] 1 spin = 0 VAL [arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}, spin=0, status=0] [L1807] COND TRUE 1 spin < 10000000 VAL [arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}, spin=0, status=0] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}, spin=0, status=0] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1150, arg={0:0}, arg={0:0}, argc=1150, argv={1154:1153}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}, spin=0, status=0, status=0] [L1841] COND FALSE 0 !(status != 0) VAL [\old(argc)=1150, arg={0:0}, arg={0:0}, argc=1150, argv={1154:1153}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}, spin=0, status=0, status=0] [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [\old(argc)=1150, arg={0:0}, arg={0:0}, arg={0:0}, argc=1150, argv={1154:1153}, counter=0, counter_thread_id={27:0}, end_time=60, monitor_thread_id={26:0}, mutex={25:0}, spin=0, status=0, status=0] [L1817] 2 int status; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, mutex={25:0}, spin=0, status=0] [L1818] 2 int misses = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=0] [L1819] 2 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=0] [L1819] COND TRUE 2 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=0] [L1821] 2 status = pthread_mutex_trylock (&mutex) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1822] COND FALSE 2 !(status != 16) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=60, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, end_time=60, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, end_time=60, misses=0, mutex={25:0}, spin=0, status=0, status=16] Now there is a data race on ~counter~0 between C: counter++ [1808] and C: counter++ [1830] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1846]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1849]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1843]: 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: 1840]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 407 locations, 31 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: 5.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 273 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 481 IncrementalHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 40 mSDtfsCounter, 481 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=715occurred in iteration=7, InterpolantAutomatonStates: 30, 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, 1.6s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 557 ConstructedInterpolants, 0 QuantifiedInterpolants, 731 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2023-11-28 20:40:13,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6068c588-eadd-43d7-9266-a74779384ec7/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