./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu --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 b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:04,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:04,686 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:55:04,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:04,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:04,717 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:04,717 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:04,718 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:04,719 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:04,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:04,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:04,726 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:04,727 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:04,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:04,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:04,729 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:04,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:04,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:04,731 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:04,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:04,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:04,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:04,734 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:55:04,734 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:04,735 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:04,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:04,735 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:04,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:04,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:04,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:04,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:04,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:04,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:04,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:55:04,740 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:04,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:04,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:04,740 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:55:04,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:04,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:04,741 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:04,741 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_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b4399e58ed3ca9c75e2a61372e91a4308548a0e79a3eb4428d85990bd71242f7 [2023-11-19 07:55:05,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:05,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:05,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:05,036 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:05,037 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:05,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i [2023-11-19 07:55:08,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:08,476 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:08,477 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing.i [2023-11-19 07:55:08,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/data/853daa929/5ea3d39a82ad40669645285e5c16ac24/FLAGe673c590a [2023-11-19 07:55:08,509 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/data/853daa929/5ea3d39a82ad40669645285e5c16ac24 [2023-11-19 07:55:08,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:08,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:08,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:08,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:08,522 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:08,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:08" (1/1) ... [2023-11-19 07:55:08,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418aed5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:08, skipping insertion in model container [2023-11-19 07:55:08,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:08" (1/1) ... [2023-11-19 07:55:08,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:09,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:09,056 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:09,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:09,201 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:09,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09 WrapperNode [2023-11-19 07:55:09,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:09,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:09,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:09,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:09,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,248 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,289 INFO L138 Inliner]: procedures = 170, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 119 [2023-11-19 07:55:09,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:09,290 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:09,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:09,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:09,303 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,334 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:09,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:09,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:09,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:09,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (1/1) ... [2023-11-19 07:55:09,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:09,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:09,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:09,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e663599-90a2-42eb-80ea-bc1769566e2b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:55:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:55:09,456 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:55:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:55:09,457 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 07:55:09,457 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 07:55:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:55:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:09,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:09,460 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:55:09,599 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:09,602 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:09,962 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:09,974 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:09,975 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-19 07:55:09,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:09 BoogieIcfgContainer [2023-11-19 07:55:09,980 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:10,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:55:10,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:55:10,018 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:55:10,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:08" (1/3) ... [2023-11-19 07:55:10,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342e461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:10, skipping insertion in model container [2023-11-19 07:55:10,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:09" (2/3) ... [2023-11-19 07:55:10,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342e461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:10, skipping insertion in model container [2023-11-19 07:55:10,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:09" (3/3) ... [2023-11-19 07:55:10,024 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_61-invariant_racing.i [2023-11-19 07:55:10,036 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:55:10,064 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:55:10,065 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-19 07:55:10,066 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:55:10,221 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 07:55:10,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 180 transitions, 367 flow [2023-11-19 07:55:10,448 INFO L124 PetriNetUnfolderBase]: 32/269 cut-off events. [2023-11-19 07:55:10,448 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:55:10,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 269 events. 32/269 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1088 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 148. Up to 6 conditions per place. [2023-11-19 07:55:10,455 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 180 transitions, 367 flow [2023-11-19 07:55:10,472 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 180 transitions, 367 flow [2023-11-19 07:55:10,477 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:55:10,496 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 180 transitions, 367 flow [2023-11-19 07:55:10,499 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 180 transitions, 367 flow [2023-11-19 07:55:10,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 180 transitions, 367 flow [2023-11-19 07:55:10,558 INFO L124 PetriNetUnfolderBase]: 32/269 cut-off events. [2023-11-19 07:55:10,558 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:55:10,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 269 events. 32/269 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1088 event pairs, 0 based on Foata normal form. 0/217 useless extension candidates. Maximal degree in co-relation 148. Up to 6 conditions per place. [2023-11-19 07:55:10,571 INFO L119 LiptonReduction]: Number of co-enabled transitions 10260 [2023-11-19 07:55:14,085 INFO L134 LiptonReduction]: Checked pairs total: 46163 [2023-11-19 07:55:14,091 INFO L136 LiptonReduction]: Total number of compositions: 123 [2023-11-19 07:55:14,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:14,124 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;@31a0c4a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:14,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-11-19 07:55:14,130 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:55:14,130 INFO L124 PetriNetUnfolderBase]: 3/21 cut-off events. [2023-11-19 07:55:14,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:55:14,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:14,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:55:14,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-19 07:55:14,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:14,138 INFO L85 PathProgramCache]: Analyzing trace with hash 616669065, now seen corresponding path program 1 times [2023-11-19 07:55:14,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:14,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244252192] [2023-11-19 07:55:14,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:14,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:14,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:14,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:14,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244252192] [2023-11-19 07:55:14,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244252192] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:14,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:14,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:14,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593789956] [2023-11-19 07:55:14,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:14,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:14,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:14,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:14,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:14,500 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 303 [2023-11-19 07:55:14,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 88 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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) [2023-11-19 07:55:14,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:14,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 303 [2023-11-19 07:55:14,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:14,731 INFO L124 PetriNetUnfolderBase]: 205/641 cut-off events. [2023-11-19 07:55:14,731 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 07:55:14,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 641 events. 205/641 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3467 event pairs, 144 based on Foata normal form. 84/643 useless extension candidates. Maximal degree in co-relation 1048. Up to 413 conditions per place. [2023-11-19 07:55:14,740 INFO L140 encePairwiseOnDemand]: 284/303 looper letters, 42 selfloop transitions, 2 changer transitions 2/85 dead transitions. [2023-11-19 07:55:14,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 85 transitions, 269 flow [2023-11-19 07:55:14,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:55:14,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2023-11-19 07:55:14,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5808580858085809 [2023-11-19 07:55:14,767 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 528 transitions. [2023-11-19 07:55:14,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 528 transitions. [2023-11-19 07:55:14,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:14,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 528 transitions. [2023-11-19 07:55:14,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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) [2023-11-19 07:55:14,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 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) [2023-11-19 07:55:14,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 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) [2023-11-19 07:55:14,792 INFO L175 Difference]: Start difference. First operand has 74 places, 88 transitions, 183 flow. Second operand 3 states and 528 transitions. [2023-11-19 07:55:14,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 85 transitions, 269 flow [2023-11-19 07:55:14,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 85 transitions, 269 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:55:14,801 INFO L231 Difference]: Finished difference. Result has 76 places, 70 transitions, 152 flow [2023-11-19 07:55:14,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=76, PETRI_TRANSITIONS=70} [2023-11-19 07:55:14,808 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 2 predicate places. [2023-11-19 07:55:14,809 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 70 transitions, 152 flow [2023-11-19 07:55:14,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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) [2023-11-19 07:55:14,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:14,810 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:55:14,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:55:14,813 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-19 07:55:14,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:14,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1963437868, now seen corresponding path program 1 times [2023-11-19 07:55:14,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:14,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12501962] [2023-11-19 07:55:14,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:14,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:14,885 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:14,956 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:14,957 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:55:14,959 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2023-11-19 07:55:14,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2023-11-19 07:55:14,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2023-11-19 07:55:14,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2023-11-19 07:55:14,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2023-11-19 07:55:14,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2023-11-19 07:55:14,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2023-11-19 07:55:14,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2023-11-19 07:55:14,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2023-11-19 07:55:14,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2023-11-19 07:55:14,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2023-11-19 07:55:14,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2023-11-19 07:55:14,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2023-11-19 07:55:14,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2023-11-19 07:55:14,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2023-11-19 07:55:14,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2023-11-19 07:55:14,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2023-11-19 07:55:14,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:55:14,965 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:55:14,968 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:55:14,968 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:55:15,000 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:55:15,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 236 transitions, 488 flow [2023-11-19 07:55:15,090 INFO L124 PetriNetUnfolderBase]: 54/446 cut-off events. [2023-11-19 07:55:15,090 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:55:15,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 446 events. 54/446 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2061 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 271. Up to 9 conditions per place. [2023-11-19 07:55:15,097 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 236 transitions, 488 flow [2023-11-19 07:55:15,103 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 236 transitions, 488 flow [2023-11-19 07:55:15,103 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:55:15,103 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 213 places, 236 transitions, 488 flow [2023-11-19 07:55:15,104 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 213 places, 236 transitions, 488 flow [2023-11-19 07:55:15,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 236 transitions, 488 flow [2023-11-19 07:55:15,198 INFO L124 PetriNetUnfolderBase]: 54/446 cut-off events. [2023-11-19 07:55:15,199 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-19 07:55:15,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 446 events. 54/446 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2061 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 271. Up to 9 conditions per place. [2023-11-19 07:55:15,232 INFO L119 LiptonReduction]: Number of co-enabled transitions 27540 [2023-11-19 07:55:18,499 INFO L134 LiptonReduction]: Checked pairs total: 136600 [2023-11-19 07:55:18,500 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-11-19 07:55:18,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:18,504 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;@31a0c4a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:18,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-19 07:55:18,507 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:55:18,507 INFO L124 PetriNetUnfolderBase]: 3/21 cut-off events. [2023-11-19 07:55:18,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:55:18,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:18,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:55:18,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-19 07:55:18,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:18,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1028804733, now seen corresponding path program 1 times [2023-11-19 07:55:18,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:18,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290771339] [2023-11-19 07:55:18,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:18,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:18,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:18,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:18,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290771339] [2023-11-19 07:55:18,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290771339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:18,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:18,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:18,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311114496] [2023-11-19 07:55:18,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:18,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:18,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:18,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:18,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:18,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 376 [2023-11-19 07:55:18,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 131 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 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) [2023-11-19 07:55:18,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:18,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 376 [2023-11-19 07:55:18,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:20,501 INFO L124 PetriNetUnfolderBase]: 5754/12112 cut-off events. [2023-11-19 07:55:20,502 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2023-11-19 07:55:20,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21029 conditions, 12112 events. 5754/12112 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 105894 event pairs, 2496 based on Foata normal form. 1590/12520 useless extension candidates. Maximal degree in co-relation 2115. Up to 8834 conditions per place. [2023-11-19 07:55:20,616 INFO L140 encePairwiseOnDemand]: 351/376 looper letters, 60 selfloop transitions, 2 changer transitions 0/123 dead transitions. [2023-11-19 07:55:20,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 123 transitions, 386 flow [2023-11-19 07:55:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:20,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:55:20,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 694 transitions. [2023-11-19 07:55:20,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6152482269503546 [2023-11-19 07:55:20,620 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 694 transitions. [2023-11-19 07:55:20,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 694 transitions. [2023-11-19 07:55:20,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:20,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 694 transitions. [2023-11-19 07:55:20,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 231.33333333333334) internal successors, (694), 3 states have internal predecessors, (694), 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) [2023-11-19 07:55:20,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 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) [2023-11-19 07:55:20,630 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 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) [2023-11-19 07:55:20,630 INFO L175 Difference]: Start difference. First operand has 111 places, 131 transitions, 278 flow. Second operand 3 states and 694 transitions. [2023-11-19 07:55:20,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 123 transitions, 386 flow [2023-11-19 07:55:20,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 123 transitions, 386 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:55:20,639 INFO L231 Difference]: Finished difference. Result has 113 places, 110 transitions, 246 flow [2023-11-19 07:55:20,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=113, PETRI_TRANSITIONS=110} [2023-11-19 07:55:20,641 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 2 predicate places. [2023-11-19 07:55:20,641 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 110 transitions, 246 flow [2023-11-19 07:55:20,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 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) [2023-11-19 07:55:20,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:20,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:55:20,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:55:20,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-19 07:55:20,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:20,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1848739321, now seen corresponding path program 1 times [2023-11-19 07:55:20,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:20,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506267266] [2023-11-19 07:55:20,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:20,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:20,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:20,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506267266] [2023-11-19 07:55:20,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506267266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:20,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:20,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:20,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118864549] [2023-11-19 07:55:20,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:20,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:20,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:20,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:20,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:20,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 376 [2023-11-19 07:55:20,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 110 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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) [2023-11-19 07:55:20,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:20,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 376 [2023-11-19 07:55:20,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:27,373 INFO L124 PetriNetUnfolderBase]: 29083/53974 cut-off events. [2023-11-19 07:55:27,373 INFO L125 PetriNetUnfolderBase]: For 1150/1150 co-relation queries the response was YES. [2023-11-19 07:55:27,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100928 conditions, 53974 events. 29083/53974 cut-off events. For 1150/1150 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 492953 event pairs, 11203 based on Foata normal form. 0/49613 useless extension candidates. Maximal degree in co-relation 100788. Up to 25266 conditions per place. [2023-11-19 07:55:27,768 INFO L140 encePairwiseOnDemand]: 343/376 looper letters, 111 selfloop transitions, 24 changer transitions 0/172 dead transitions. [2023-11-19 07:55:27,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 172 transitions, 658 flow [2023-11-19 07:55:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:55:27,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:55:27,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 664 transitions. [2023-11-19 07:55:27,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5886524822695035 [2023-11-19 07:55:27,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 664 transitions. [2023-11-19 07:55:27,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 664 transitions. [2023-11-19 07:55:27,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:27,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 664 transitions. [2023-11-19 07:55:27,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 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) [2023-11-19 07:55:27,780 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 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) [2023-11-19 07:55:27,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 376.0) internal successors, (1504), 4 states have internal predecessors, (1504), 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) [2023-11-19 07:55:27,781 INFO L175 Difference]: Start difference. First operand has 113 places, 110 transitions, 246 flow. Second operand 3 states and 664 transitions. [2023-11-19 07:55:27,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 172 transitions, 658 flow [2023-11-19 07:55:27,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 172 transitions, 655 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:55:27,793 INFO L231 Difference]: Finished difference. Result has 116 places, 134 transitions, 454 flow [2023-11-19 07:55:27,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=116, PETRI_TRANSITIONS=134} [2023-11-19 07:55:27,796 INFO L281 CegarLoopForPetriNet]: 111 programPoint places, 5 predicate places. [2023-11-19 07:55:27,797 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 134 transitions, 454 flow [2023-11-19 07:55:27,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 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) [2023-11-19 07:55:27,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:27,798 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 07:55:27,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:55:27,799 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-19 07:55:27,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:27,800 INFO L85 PathProgramCache]: Analyzing trace with hash 2057392997, now seen corresponding path program 1 times [2023-11-19 07:55:27,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:27,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550940155] [2023-11-19 07:55:27,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:27,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:27,852 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:27,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:27,883 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:55:27,883 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2023-11-19 07:55:27,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2023-11-19 07:55:27,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2023-11-19 07:55:27,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2023-11-19 07:55:27,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2023-11-19 07:55:27,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2023-11-19 07:55:27,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2023-11-19 07:55:27,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2023-11-19 07:55:27,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2023-11-19 07:55:27,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2023-11-19 07:55:27,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2023-11-19 07:55:27,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2023-11-19 07:55:27,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2023-11-19 07:55:27,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2023-11-19 07:55:27,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2023-11-19 07:55:27,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2023-11-19 07:55:27,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2023-11-19 07:55:27,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2023-11-19 07:55:27,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2023-11-19 07:55:27,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2023-11-19 07:55:27,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2023-11-19 07:55:27,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2023-11-19 07:55:27,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:55:27,903 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:55:27,904 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:55:27,904 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-19 07:55:27,958 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:55:27,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 292 transitions, 611 flow [2023-11-19 07:55:28,125 INFO L124 PetriNetUnfolderBase]: 81/670 cut-off events. [2023-11-19 07:55:28,126 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-19 07:55:28,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 670 events. 81/670 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3263 event pairs, 1 based on Foata normal form. 0/542 useless extension candidates. Maximal degree in co-relation 454. Up to 16 conditions per place. [2023-11-19 07:55:28,137 INFO L82 GeneralOperation]: Start removeDead. Operand has 263 places, 292 transitions, 611 flow [2023-11-19 07:55:28,145 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 263 places, 292 transitions, 611 flow [2023-11-19 07:55:28,145 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:55:28,145 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 292 transitions, 611 flow [2023-11-19 07:55:28,146 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 292 transitions, 611 flow [2023-11-19 07:55:28,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 292 transitions, 611 flow [2023-11-19 07:55:28,417 INFO L124 PetriNetUnfolderBase]: 81/670 cut-off events. [2023-11-19 07:55:28,418 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-19 07:55:28,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 670 events. 81/670 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3263 event pairs, 1 based on Foata normal form. 0/542 useless extension candidates. Maximal degree in co-relation 454. Up to 16 conditions per place. [2023-11-19 07:55:28,466 INFO L119 LiptonReduction]: Number of co-enabled transitions 50544 [2023-11-19 07:55:32,284 INFO L134 LiptonReduction]: Checked pairs total: 269892 [2023-11-19 07:55:32,284 INFO L136 LiptonReduction]: Total number of compositions: 161 [2023-11-19 07:55:32,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:55:32,288 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;@31a0c4a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:55:32,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2023-11-19 07:55:32,292 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:55:32,293 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2023-11-19 07:55:32,293 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:55:32,293 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:55:32,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:55:32,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-19 07:55:32,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:32,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1514362086, now seen corresponding path program 1 times [2023-11-19 07:55:32,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:32,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975798742] [2023-11-19 07:55:32,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:32,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:32,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:32,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:55:32,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975798742] [2023-11-19 07:55:32,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975798742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:55:32,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:55:32,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:55:32,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190534280] [2023-11-19 07:55:32,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:55:32,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:55:32,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:55:32,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:55:32,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:55:32,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 453 [2023-11-19 07:55:32,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 172 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 250.66666666666666) internal successors, (752), 3 states have internal predecessors, (752), 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) [2023-11-19 07:55:32,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:55:32,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 453 [2023-11-19 07:55:32,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:55:53,258 INFO L124 PetriNetUnfolderBase]: 108080/185394 cut-off events. [2023-11-19 07:55:53,258 INFO L125 PetriNetUnfolderBase]: For 1831/1831 co-relation queries the response was YES. [2023-11-19 07:55:53,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332868 conditions, 185394 events. 108080/185394 cut-off events. For 1831/1831 co-relation queries the response was YES. Maximal size of possible extension queue 4427. Compared 1911813 event pairs, 64648 based on Foata normal form. 20240/189343 useless extension candidates. Maximal degree in co-relation 21277. Up to 146260 conditions per place.