./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_543fead5-4f93-4e9f-8e0d-d0318780a146/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/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_543fead5-4f93-4e9f-8e0d-d0318780a146/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/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_543fead5-4f93-4e9f-8e0d-d0318780a146/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 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:59,607 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:59,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:59:59,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:59,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:59,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:59,815 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:59,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:59,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:59,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:59,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:59,831 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:59,831 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:59,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:59,834 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:59:59,834 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:59:59,835 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:59,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:59:59,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:59,837 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:59:59,837 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:59,838 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:59:59,839 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:59:59,839 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:59:59,840 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:59:59,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:59:59,841 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:59,842 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:59,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:59,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:59,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:59,845 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:59,846 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:59,846 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:59:59,846 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:59:59,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:59:59,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:59,847 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:59:59,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:59,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:59,848 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:59,849 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_543fead5-4f93-4e9f-8e0d-d0318780a146/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aa541197ab3d76d3553dcc8603f5c865e8a029202164eb406db53a61111f080 [2023-11-19 08:00:00,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:00:00,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:00:00,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:00:00,241 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:00:00,242 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:00:00,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-11-19 08:00:03,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:04,123 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:04,124 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/sv-benchmarks/c/goblint-regression/06-symbeq_13-equ_proc_nr.i [2023-11-19 08:00:04,154 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/bin/uautomizer-verify-uCwYo4JHxu/data/016e8e0ec/1511ff8efbba41c9ba139017a75b749e/FLAGaaf702610 [2023-11-19 08:00:04,174 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/bin/uautomizer-verify-uCwYo4JHxu/data/016e8e0ec/1511ff8efbba41c9ba139017a75b749e [2023-11-19 08:00:04,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:04,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:04,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:04,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:04,192 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:04,193 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f7ccf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04, skipping insertion in model container [2023-11-19 08:00:04,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:04,262 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:04,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:04,880 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:04,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:04,998 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:04,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04 WrapperNode [2023-11-19 08:00:04,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:05,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:05,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:05,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:05,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:05,030 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:05,057 INFO L138 Inliner]: procedures = 266, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-11-19 08:00:05,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:05,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:05,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:05,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:05,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:05,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:05,074 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:05,075 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:05,086 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:05,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:05,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:05,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:05,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:05,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:05,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:05,097 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:05,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (1/1) ... [2023-11-19 08:00:05,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:05,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:05,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:05,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_543fead5-4f93-4e9f-8e0d-d0318780a146/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:05,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:00:05,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:00:05,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:00:05,180 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 08:00:05,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:05,180 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 08:00:05,180 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 08:00:05,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:00:05,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:05,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:05,187 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 08:00:05,394 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:05,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:05,674 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:05,693 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:05,693 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:00:05,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:05 BoogieIcfgContainer [2023-11-19 08:00:05,697 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:05,700 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:05,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:05,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:05,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:04" (1/3) ... [2023-11-19 08:00:05,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1666bb26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:05, skipping insertion in model container [2023-11-19 08:00:05,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:04" (2/3) ... [2023-11-19 08:00:05,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1666bb26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:05, skipping insertion in model container [2023-11-19 08:00:05,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:05" (3/3) ... [2023-11-19 08:00:05,710 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_13-equ_proc_nr.i [2023-11-19 08:00:05,717 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:00:05,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:05,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 08:00:05,726 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:00:05,782 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:00:05,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 81 transitions, 166 flow [2023-11-19 08:00:05,914 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2023-11-19 08:00:05,914 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:05,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-11-19 08:00:05,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 81 transitions, 166 flow [2023-11-19 08:00:05,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2023-11-19 08:00:05,928 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:00:05,938 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 80 transitions, 163 flow [2023-11-19 08:00:05,950 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 80 transitions, 163 flow [2023-11-19 08:00:05,951 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 163 flow [2023-11-19 08:00:05,981 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2023-11-19 08:00:05,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:05,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 80 events. 1/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-11-19 08:00:05,983 INFO L119 LiptonReduction]: Number of co-enabled transitions 750 [2023-11-19 08:00:11,084 INFO L134 LiptonReduction]: Checked pairs total: 2878 [2023-11-19 08:00:11,084 INFO L136 LiptonReduction]: Total number of compositions: 60 [2023-11-19 08:00:11,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:11,128 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;@14371313, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:11,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 08:00:11,142 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:00:11,143 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-11-19 08:00:11,143 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:11,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:11,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:11,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:11,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:11,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1585115475, now seen corresponding path program 1 times [2023-11-19 08:00:11,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:11,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937929562] [2023-11-19 08:00:11,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:11,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:12,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:12,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:12,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937929562] [2023-11-19 08:00:12,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937929562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:12,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:12,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:00:12,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082705764] [2023-11-19 08:00:12,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:12,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:12,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:12,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:12,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:12,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 141 [2023-11-19 08:00:12,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 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 08:00:12,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:12,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 141 [2023-11-19 08:00:12,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:12,635 INFO L124 PetriNetUnfolderBase]: 89/209 cut-off events. [2023-11-19 08:00:12,635 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:12,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 209 events. 89/209 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 780 event pairs, 34 based on Foata normal form. 0/203 useless extension candidates. Maximal degree in co-relation 406. Up to 150 conditions per place. [2023-11-19 08:00:12,642 INFO L140 encePairwiseOnDemand]: 131/141 looper letters, 26 selfloop transitions, 21 changer transitions 8/56 dead transitions. [2023-11-19 08:00:12,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 56 transitions, 225 flow [2023-11-19 08:00:12,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:12,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:12,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2023-11-19 08:00:12,675 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.541371158392435 [2023-11-19 08:00:12,675 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 458 transitions. [2023-11-19 08:00:12,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 458 transitions. [2023-11-19 08:00:12,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:12,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 458 transitions. [2023-11-19 08:00:12,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.33333333333333) internal successors, (458), 6 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:12,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 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 08:00:12,695 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 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 08:00:12,696 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 6 states and 458 transitions. [2023-11-19 08:00:12,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 56 transitions, 225 flow [2023-11-19 08:00:12,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 56 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:12,703 INFO L231 Difference]: Finished difference. Result has 32 places, 40 transitions, 166 flow [2023-11-19 08:00:12,705 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=32, PETRI_TRANSITIONS=40} [2023-11-19 08:00:12,710 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 8 predicate places. [2023-11-19 08:00:12,710 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 40 transitions, 166 flow [2023-11-19 08:00:12,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 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 08:00:12,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:12,711 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:12,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:00:12,712 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:12,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:12,713 INFO L85 PathProgramCache]: Analyzing trace with hash 676363950, now seen corresponding path program 1 times [2023-11-19 08:00:12,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:12,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168202617] [2023-11-19 08:00:12,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:12,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:13,004 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 08:00:13,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:13,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168202617] [2023-11-19 08:00:13,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168202617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:13,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:13,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:00:13,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769541083] [2023-11-19 08:00:13,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:13,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:13,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:13,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:13,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:13,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 141 [2023-11-19 08:00:13,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 40 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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 08:00:13,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:13,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 141 [2023-11-19 08:00:13,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:13,275 INFO L124 PetriNetUnfolderBase]: 112/256 cut-off events. [2023-11-19 08:00:13,275 INFO L125 PetriNetUnfolderBase]: For 75/80 co-relation queries the response was YES. [2023-11-19 08:00:13,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 256 events. 112/256 cut-off events. For 75/80 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1011 event pairs, 33 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 721. Up to 200 conditions per place. [2023-11-19 08:00:13,280 INFO L140 encePairwiseOnDemand]: 131/141 looper letters, 42 selfloop transitions, 25 changer transitions 8/76 dead transitions. [2023-11-19 08:00:13,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 76 transitions, 438 flow [2023-11-19 08:00:13,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:13,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:13,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 446 transitions. [2023-11-19 08:00:13,283 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5271867612293144 [2023-11-19 08:00:13,283 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 446 transitions. [2023-11-19 08:00:13,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 446 transitions. [2023-11-19 08:00:13,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:13,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 446 transitions. [2023-11-19 08:00:13,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 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 08:00:13,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 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 08:00:13,291 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 141.0) internal successors, (987), 7 states have internal predecessors, (987), 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 08:00:13,291 INFO L175 Difference]: Start difference. First operand has 32 places, 40 transitions, 166 flow. Second operand 6 states and 446 transitions. [2023-11-19 08:00:13,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 76 transitions, 438 flow [2023-11-19 08:00:13,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 76 transitions, 438 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:13,298 INFO L231 Difference]: Finished difference. Result has 41 places, 60 transitions, 344 flow [2023-11-19 08:00:13,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=41, PETRI_TRANSITIONS=60} [2023-11-19 08:00:13,299 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 17 predicate places. [2023-11-19 08:00:13,299 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 60 transitions, 344 flow [2023-11-19 08:00:13,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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 08:00:13,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:13,300 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:13,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:00:13,301 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:13,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:13,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1959211706, now seen corresponding path program 1 times [2023-11-19 08:00:13,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:13,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213597877] [2023-11-19 08:00:13,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:13,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:13,899 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 08:00:13,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:13,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213597877] [2023-11-19 08:00:13,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213597877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:13,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:13,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:13,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109068533] [2023-11-19 08:00:13,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:13,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:13,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:13,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:13,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:14,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-19 08:00:14,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 60 transitions, 344 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:14,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:14,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-19 08:00:14,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:14,954 INFO L124 PetriNetUnfolderBase]: 231/521 cut-off events. [2023-11-19 08:00:14,954 INFO L125 PetriNetUnfolderBase]: For 373/381 co-relation queries the response was YES. [2023-11-19 08:00:14,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1943 conditions, 521 events. 231/521 cut-off events. For 373/381 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2698 event pairs, 23 based on Foata normal form. 0/503 useless extension candidates. Maximal degree in co-relation 1925. Up to 223 conditions per place. [2023-11-19 08:00:14,963 INFO L140 encePairwiseOnDemand]: 128/141 looper letters, 136 selfloop transitions, 41 changer transitions 38/216 dead transitions. [2023-11-19 08:00:14,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 216 transitions, 1697 flow [2023-11-19 08:00:14,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 08:00:14,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-19 08:00:14,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 794 transitions. [2023-11-19 08:00:14,967 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4022289766970618 [2023-11-19 08:00:14,968 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 794 transitions. [2023-11-19 08:00:14,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 794 transitions. [2023-11-19 08:00:14,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:14,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 794 transitions. [2023-11-19 08:00:14,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 56.714285714285715) internal successors, (794), 14 states have internal predecessors, (794), 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 08:00:14,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 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 08:00:14,978 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 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 08:00:14,978 INFO L175 Difference]: Start difference. First operand has 41 places, 60 transitions, 344 flow. Second operand 14 states and 794 transitions. [2023-11-19 08:00:14,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 216 transitions, 1697 flow [2023-11-19 08:00:14,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 216 transitions, 1577 flow, removed 60 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:14,992 INFO L231 Difference]: Finished difference. Result has 64 places, 97 transitions, 724 flow [2023-11-19 08:00:14,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=724, PETRI_PLACES=64, PETRI_TRANSITIONS=97} [2023-11-19 08:00:14,994 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 40 predicate places. [2023-11-19 08:00:14,994 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 97 transitions, 724 flow [2023-11-19 08:00:14,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:14,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:14,995 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:14,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:00:14,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:14,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:14,996 INFO L85 PathProgramCache]: Analyzing trace with hash -988452702, now seen corresponding path program 2 times [2023-11-19 08:00:14,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:14,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662478754] [2023-11-19 08:00:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:14,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:16,197 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 08:00:16,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:16,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662478754] [2023-11-19 08:00:16,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662478754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:16,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:16,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:16,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271204680] [2023-11-19 08:00:16,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:16,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:16,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:16,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:16,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:16,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-19 08:00:16,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 97 transitions, 724 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:16,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:16,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-19 08:00:16,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:17,160 INFO L124 PetriNetUnfolderBase]: 222/511 cut-off events. [2023-11-19 08:00:17,160 INFO L125 PetriNetUnfolderBase]: For 914/921 co-relation queries the response was YES. [2023-11-19 08:00:17,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2345 conditions, 511 events. 222/511 cut-off events. For 914/921 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2649 event pairs, 28 based on Foata normal form. 0/493 useless extension candidates. Maximal degree in co-relation 2315. Up to 353 conditions per place. [2023-11-19 08:00:17,168 INFO L140 encePairwiseOnDemand]: 125/141 looper letters, 75 selfloop transitions, 43 changer transitions 28/147 dead transitions. [2023-11-19 08:00:17,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 147 transitions, 1351 flow [2023-11-19 08:00:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 08:00:17,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-19 08:00:17,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 627 transitions. [2023-11-19 08:00:17,173 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40425531914893614 [2023-11-19 08:00:17,173 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 627 transitions. [2023-11-19 08:00:17,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 627 transitions. [2023-11-19 08:00:17,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:17,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 627 transitions. [2023-11-19 08:00:17,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 57.0) internal successors, (627), 11 states have internal predecessors, (627), 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 08:00:17,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 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 08:00:17,181 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 141.0) internal successors, (1692), 12 states have internal predecessors, (1692), 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 08:00:17,181 INFO L175 Difference]: Start difference. First operand has 64 places, 97 transitions, 724 flow. Second operand 11 states and 627 transitions. [2023-11-19 08:00:17,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 147 transitions, 1351 flow [2023-11-19 08:00:17,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 147 transitions, 1293 flow, removed 26 selfloop flow, removed 4 redundant places. [2023-11-19 08:00:17,201 INFO L231 Difference]: Finished difference. Result has 70 places, 101 transitions, 844 flow [2023-11-19 08:00:17,201 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=708, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=844, PETRI_PLACES=70, PETRI_TRANSITIONS=101} [2023-11-19 08:00:17,202 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 46 predicate places. [2023-11-19 08:00:17,202 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 101 transitions, 844 flow [2023-11-19 08:00:17,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:17,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:17,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:17,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:00:17,204 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:17,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:17,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1307679868, now seen corresponding path program 1 times [2023-11-19 08:00:17,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:17,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956654284] [2023-11-19 08:00:17,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:17,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:17,724 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 08:00:17,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:17,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956654284] [2023-11-19 08:00:17,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956654284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:17,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:17,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:17,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549157426] [2023-11-19 08:00:17,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:17,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:17,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:17,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:17,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:18,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-19 08:00:18,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 101 transitions, 844 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 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 08:00:18,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:18,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-19 08:00:18,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:19,108 INFO L124 PetriNetUnfolderBase]: 339/778 cut-off events. [2023-11-19 08:00:19,114 INFO L125 PetriNetUnfolderBase]: For 1717/1741 co-relation queries the response was YES. [2023-11-19 08:00:19,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3753 conditions, 778 events. 339/778 cut-off events. For 1717/1741 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4591 event pairs, 33 based on Foata normal form. 10/788 useless extension candidates. Maximal degree in co-relation 3722. Up to 377 conditions per place. [2023-11-19 08:00:19,128 INFO L140 encePairwiseOnDemand]: 129/141 looper letters, 169 selfloop transitions, 50 changer transitions 45/265 dead transitions. [2023-11-19 08:00:19,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 265 transitions, 2617 flow [2023-11-19 08:00:19,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 08:00:19,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-19 08:00:19,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 921 transitions. [2023-11-19 08:00:19,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40824468085106386 [2023-11-19 08:00:19,135 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 921 transitions. [2023-11-19 08:00:19,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 921 transitions. [2023-11-19 08:00:19,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:19,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 921 transitions. [2023-11-19 08:00:19,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 57.5625) internal successors, (921), 16 states have internal predecessors, (921), 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 08:00:19,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 141.0) internal successors, (2397), 17 states have internal predecessors, (2397), 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 08:00:19,150 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 141.0) internal successors, (2397), 17 states have internal predecessors, (2397), 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 08:00:19,151 INFO L175 Difference]: Start difference. First operand has 70 places, 101 transitions, 844 flow. Second operand 16 states and 921 transitions. [2023-11-19 08:00:19,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 265 transitions, 2617 flow [2023-11-19 08:00:19,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 265 transitions, 2504 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 08:00:19,193 INFO L231 Difference]: Finished difference. Result has 90 places, 130 transitions, 1224 flow [2023-11-19 08:00:19,194 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1224, PETRI_PLACES=90, PETRI_TRANSITIONS=130} [2023-11-19 08:00:19,198 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 66 predicate places. [2023-11-19 08:00:19,199 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 130 transitions, 1224 flow [2023-11-19 08:00:19,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 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 08:00:19,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:19,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:19,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:00:19,201 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:19,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:19,202 INFO L85 PathProgramCache]: Analyzing trace with hash 117364866, now seen corresponding path program 3 times [2023-11-19 08:00:19,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:19,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184548169] [2023-11-19 08:00:19,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:19,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:19,876 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 08:00:19,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:19,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184548169] [2023-11-19 08:00:19,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184548169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:19,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:19,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:19,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923712948] [2023-11-19 08:00:19,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:19,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:19,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:19,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:19,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:20,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-19 08:00:20,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 130 transitions, 1224 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:20,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:20,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-19 08:00:20,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:21,274 INFO L124 PetriNetUnfolderBase]: 394/886 cut-off events. [2023-11-19 08:00:21,274 INFO L125 PetriNetUnfolderBase]: For 3222/3234 co-relation queries the response was YES. [2023-11-19 08:00:21,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4998 conditions, 886 events. 394/886 cut-off events. For 3222/3234 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5368 event pairs, 40 based on Foata normal form. 0/848 useless extension candidates. Maximal degree in co-relation 4956. Up to 552 conditions per place. [2023-11-19 08:00:21,293 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 131 selfloop transitions, 80 changer transitions 27/239 dead transitions. [2023-11-19 08:00:21,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 239 transitions, 2673 flow [2023-11-19 08:00:21,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:00:21,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 08:00:21,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 684 transitions. [2023-11-19 08:00:21,299 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40425531914893614 [2023-11-19 08:00:21,299 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 684 transitions. [2023-11-19 08:00:21,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 684 transitions. [2023-11-19 08:00:21,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:21,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 684 transitions. [2023-11-19 08:00:21,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 57.0) internal successors, (684), 12 states have internal predecessors, (684), 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 08:00:21,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:21,309 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:21,309 INFO L175 Difference]: Start difference. First operand has 90 places, 130 transitions, 1224 flow. Second operand 12 states and 684 transitions. [2023-11-19 08:00:21,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 239 transitions, 2673 flow [2023-11-19 08:00:21,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 239 transitions, 2570 flow, removed 47 selfloop flow, removed 6 redundant places. [2023-11-19 08:00:21,362 INFO L231 Difference]: Finished difference. Result has 98 places, 161 transitions, 1769 flow [2023-11-19 08:00:21,363 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=1191, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1769, PETRI_PLACES=98, PETRI_TRANSITIONS=161} [2023-11-19 08:00:21,366 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 74 predicate places. [2023-11-19 08:00:21,366 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 161 transitions, 1769 flow [2023-11-19 08:00:21,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:21,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:21,367 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:21,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:00:21,368 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:21,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:21,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1977896036, now seen corresponding path program 2 times [2023-11-19 08:00:21,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:21,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20570452] [2023-11-19 08:00:21,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:21,884 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 08:00:21,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:21,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20570452] [2023-11-19 08:00:21,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20570452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:21,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:21,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:21,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050723349] [2023-11-19 08:00:21,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:21,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:21,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:21,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:21,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:22,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-19 08:00:22,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 161 transitions, 1769 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:22,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:22,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-19 08:00:22,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:23,050 INFO L124 PetriNetUnfolderBase]: 367/839 cut-off events. [2023-11-19 08:00:23,050 INFO L125 PetriNetUnfolderBase]: For 4115/4136 co-relation queries the response was YES. [2023-11-19 08:00:23,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5133 conditions, 839 events. 367/839 cut-off events. For 4115/4136 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5079 event pairs, 34 based on Foata normal form. 18/857 useless extension candidates. Maximal degree in co-relation 5087. Up to 455 conditions per place. [2023-11-19 08:00:23,062 INFO L140 encePairwiseOnDemand]: 129/141 looper letters, 163 selfloop transitions, 53 changer transitions 69/286 dead transitions. [2023-11-19 08:00:23,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 286 transitions, 3571 flow [2023-11-19 08:00:23,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:00:23,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-19 08:00:23,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 834 transitions. [2023-11-19 08:00:23,067 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3943262411347518 [2023-11-19 08:00:23,068 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 834 transitions. [2023-11-19 08:00:23,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 834 transitions. [2023-11-19 08:00:23,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:23,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 834 transitions. [2023-11-19 08:00:23,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 55.6) internal successors, (834), 15 states have internal predecessors, (834), 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 08:00:23,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 141.0) internal successors, (2256), 16 states have internal predecessors, (2256), 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 08:00:23,078 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 141.0) internal successors, (2256), 16 states have internal predecessors, (2256), 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 08:00:23,079 INFO L175 Difference]: Start difference. First operand has 98 places, 161 transitions, 1769 flow. Second operand 15 states and 834 transitions. [2023-11-19 08:00:23,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 286 transitions, 3571 flow [2023-11-19 08:00:23,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 286 transitions, 3484 flow, removed 37 selfloop flow, removed 4 redundant places. [2023-11-19 08:00:23,140 INFO L231 Difference]: Finished difference. Result has 116 places, 164 transitions, 2005 flow [2023-11-19 08:00:23,141 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=1716, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2005, PETRI_PLACES=116, PETRI_TRANSITIONS=164} [2023-11-19 08:00:23,142 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 92 predicate places. [2023-11-19 08:00:23,142 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 164 transitions, 2005 flow [2023-11-19 08:00:23,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:23,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:23,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:23,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:00:23,145 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:23,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:23,145 INFO L85 PathProgramCache]: Analyzing trace with hash -417802146, now seen corresponding path program 4 times [2023-11-19 08:00:23,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:23,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972064492] [2023-11-19 08:00:23,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:23,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:23,685 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 08:00:23,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:23,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972064492] [2023-11-19 08:00:23,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972064492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:23,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:23,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:23,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730241670] [2023-11-19 08:00:23,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:23,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:23,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:23,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:23,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:24,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-19 08:00:24,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 164 transitions, 2005 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:24,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:24,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-19 08:00:24,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:24,823 INFO L124 PetriNetUnfolderBase]: 335/786 cut-off events. [2023-11-19 08:00:24,823 INFO L125 PetriNetUnfolderBase]: For 5211/5216 co-relation queries the response was YES. [2023-11-19 08:00:24,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5270 conditions, 786 events. 335/786 cut-off events. For 5211/5216 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4773 event pairs, 35 based on Foata normal form. 6/792 useless extension candidates. Maximal degree in co-relation 5216. Up to 461 conditions per place. [2023-11-19 08:00:24,839 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 149 selfloop transitions, 47 changer transitions 18/215 dead transitions. [2023-11-19 08:00:24,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 215 transitions, 2976 flow [2023-11-19 08:00:24,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:00:24,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 08:00:24,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 676 transitions. [2023-11-19 08:00:24,844 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39952718676122934 [2023-11-19 08:00:24,845 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 676 transitions. [2023-11-19 08:00:24,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 676 transitions. [2023-11-19 08:00:24,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:24,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 676 transitions. [2023-11-19 08:00:24,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.333333333333336) internal successors, (676), 12 states have internal predecessors, (676), 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 08:00:24,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:24,855 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:24,855 INFO L175 Difference]: Start difference. First operand has 116 places, 164 transitions, 2005 flow. Second operand 12 states and 676 transitions. [2023-11-19 08:00:24,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 215 transitions, 2976 flow [2023-11-19 08:00:24,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 215 transitions, 2812 flow, removed 60 selfloop flow, removed 11 redundant places. [2023-11-19 08:00:24,926 INFO L231 Difference]: Finished difference. Result has 116 places, 168 transitions, 2114 flow [2023-11-19 08:00:24,927 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=1888, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2114, PETRI_PLACES=116, PETRI_TRANSITIONS=168} [2023-11-19 08:00:24,930 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 92 predicate places. [2023-11-19 08:00:24,930 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 168 transitions, 2114 flow [2023-11-19 08:00:24,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:24,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:24,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:24,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:00:24,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:24,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:24,932 INFO L85 PathProgramCache]: Analyzing trace with hash -103843446, now seen corresponding path program 5 times [2023-11-19 08:00:24,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:24,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776462138] [2023-11-19 08:00:24,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:24,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:25,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:25,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:25,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776462138] [2023-11-19 08:00:25,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776462138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:25,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:25,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:25,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191639714] [2023-11-19 08:00:25,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:25,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:25,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:25,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:25,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:26,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-19 08:00:26,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 168 transitions, 2114 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:26,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:26,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-19 08:00:26,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:26,946 INFO L124 PetriNetUnfolderBase]: 349/818 cut-off events. [2023-11-19 08:00:26,946 INFO L125 PetriNetUnfolderBase]: For 5565/5573 co-relation queries the response was YES. [2023-11-19 08:00:26,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5531 conditions, 818 events. 349/818 cut-off events. For 5565/5573 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5049 event pairs, 36 based on Foata normal form. 10/828 useless extension candidates. Maximal degree in co-relation 5476. Up to 464 conditions per place. [2023-11-19 08:00:26,961 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 181 selfloop transitions, 57 changer transitions 28/267 dead transitions. [2023-11-19 08:00:26,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 267 transitions, 3758 flow [2023-11-19 08:00:26,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:00:26,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 08:00:26,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 684 transitions. [2023-11-19 08:00:26,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40425531914893614 [2023-11-19 08:00:26,966 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 684 transitions. [2023-11-19 08:00:26,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 684 transitions. [2023-11-19 08:00:26,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:26,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 684 transitions. [2023-11-19 08:00:26,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 57.0) internal successors, (684), 12 states have internal predecessors, (684), 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 08:00:26,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:26,975 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:26,975 INFO L175 Difference]: Start difference. First operand has 116 places, 168 transitions, 2114 flow. Second operand 12 states and 684 transitions. [2023-11-19 08:00:26,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 267 transitions, 3758 flow [2023-11-19 08:00:27,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 267 transitions, 3659 flow, removed 29 selfloop flow, removed 6 redundant places. [2023-11-19 08:00:27,052 INFO L231 Difference]: Finished difference. Result has 125 places, 187 transitions, 2523 flow [2023-11-19 08:00:27,053 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=2065, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2523, PETRI_PLACES=125, PETRI_TRANSITIONS=187} [2023-11-19 08:00:27,054 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 101 predicate places. [2023-11-19 08:00:27,054 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 187 transitions, 2523 flow [2023-11-19 08:00:27,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:27,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:27,055 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:27,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:00:27,055 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:27,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:27,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1254488984, now seen corresponding path program 3 times [2023-11-19 08:00:27,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:27,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500497071] [2023-11-19 08:00:27,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:27,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:27,519 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 08:00:27,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:27,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500497071] [2023-11-19 08:00:27,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500497071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:27,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:27,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:27,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299485113] [2023-11-19 08:00:27,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:27,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:27,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:27,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:27,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:27,963 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-19 08:00:27,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 187 transitions, 2523 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 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 08:00:27,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:27,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-19 08:00:27,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:28,624 INFO L124 PetriNetUnfolderBase]: 297/740 cut-off events. [2023-11-19 08:00:28,624 INFO L125 PetriNetUnfolderBase]: For 5603/5615 co-relation queries the response was YES. [2023-11-19 08:00:28,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5149 conditions, 740 events. 297/740 cut-off events. For 5603/5615 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4698 event pairs, 24 based on Foata normal form. 10/750 useless extension candidates. Maximal degree in co-relation 5090. Up to 250 conditions per place. [2023-11-19 08:00:28,638 INFO L140 encePairwiseOnDemand]: 129/141 looper letters, 216 selfloop transitions, 54 changer transitions 31/302 dead transitions. [2023-11-19 08:00:28,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 302 transitions, 4417 flow [2023-11-19 08:00:28,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:00:28,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 08:00:28,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 595 transitions. [2023-11-19 08:00:28,642 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4219858156028369 [2023-11-19 08:00:28,642 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 595 transitions. [2023-11-19 08:00:28,642 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 595 transitions. [2023-11-19 08:00:28,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:28,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 595 transitions. [2023-11-19 08:00:28,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 59.5) internal successors, (595), 10 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:28,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 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 08:00:28,650 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 141.0) internal successors, (1551), 11 states have internal predecessors, (1551), 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 08:00:28,650 INFO L175 Difference]: Start difference. First operand has 125 places, 187 transitions, 2523 flow. Second operand 10 states and 595 transitions. [2023-11-19 08:00:28,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 302 transitions, 4417 flow [2023-11-19 08:00:28,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 302 transitions, 4256 flow, removed 36 selfloop flow, removed 7 redundant places. [2023-11-19 08:00:28,763 INFO L231 Difference]: Finished difference. Result has 129 places, 205 transitions, 2814 flow [2023-11-19 08:00:28,764 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=2394, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2814, PETRI_PLACES=129, PETRI_TRANSITIONS=205} [2023-11-19 08:00:28,765 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 105 predicate places. [2023-11-19 08:00:28,765 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 205 transitions, 2814 flow [2023-11-19 08:00:28,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 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 08:00:28,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:28,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:28,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 08:00:28,767 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:28,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:28,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1133889038, now seen corresponding path program 6 times [2023-11-19 08:00:28,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:28,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916963456] [2023-11-19 08:00:28,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:28,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:29,425 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 08:00:29,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:29,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916963456] [2023-11-19 08:00:29,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916963456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:29,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:29,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:29,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265094300] [2023-11-19 08:00:29,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:29,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:29,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:29,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:29,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:29,929 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-19 08:00:29,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 205 transitions, 2814 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 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 08:00:29,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:29,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-19 08:00:29,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:30,712 INFO L124 PetriNetUnfolderBase]: 318/754 cut-off events. [2023-11-19 08:00:30,713 INFO L125 PetriNetUnfolderBase]: For 5599/5603 co-relation queries the response was YES. [2023-11-19 08:00:30,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5339 conditions, 754 events. 318/754 cut-off events. For 5599/5603 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4577 event pairs, 24 based on Foata normal form. 6/760 useless extension candidates. Maximal degree in co-relation 5278. Up to 296 conditions per place. [2023-11-19 08:00:30,728 INFO L140 encePairwiseOnDemand]: 125/141 looper letters, 152 selfloop transitions, 85 changer transitions 26/264 dead transitions. [2023-11-19 08:00:30,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 264 transitions, 3956 flow [2023-11-19 08:00:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:00:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 08:00:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 695 transitions. [2023-11-19 08:00:30,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4107565011820331 [2023-11-19 08:00:30,735 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 695 transitions. [2023-11-19 08:00:30,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 695 transitions. [2023-11-19 08:00:30,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:30,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 695 transitions. [2023-11-19 08:00:30,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 57.916666666666664) internal successors, (695), 12 states have internal predecessors, (695), 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 08:00:30,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:30,743 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:30,743 INFO L175 Difference]: Start difference. First operand has 129 places, 205 transitions, 2814 flow. Second operand 12 states and 695 transitions. [2023-11-19 08:00:30,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 264 transitions, 3956 flow [2023-11-19 08:00:30,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 264 transitions, 3772 flow, removed 64 selfloop flow, removed 3 redundant places. [2023-11-19 08:00:30,845 INFO L231 Difference]: Finished difference. Result has 145 places, 209 transitions, 3035 flow [2023-11-19 08:00:30,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=2679, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3035, PETRI_PLACES=145, PETRI_TRANSITIONS=209} [2023-11-19 08:00:30,848 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 121 predicate places. [2023-11-19 08:00:30,848 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 209 transitions, 3035 flow [2023-11-19 08:00:30,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 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 08:00:30,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:30,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:30,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 08:00:30,850 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:30,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:30,851 INFO L85 PathProgramCache]: Analyzing trace with hash -408605376, now seen corresponding path program 7 times [2023-11-19 08:00:30,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:30,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579528709] [2023-11-19 08:00:30,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:30,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:31,425 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 08:00:31,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:31,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579528709] [2023-11-19 08:00:31,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579528709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:31,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:31,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:31,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613592358] [2023-11-19 08:00:31,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:31,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:31,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:31,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:31,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:32,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-19 08:00:32,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 209 transitions, 3035 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:32,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:32,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-19 08:00:32,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:32,870 INFO L124 PetriNetUnfolderBase]: 304/741 cut-off events. [2023-11-19 08:00:32,870 INFO L125 PetriNetUnfolderBase]: For 6662/6664 co-relation queries the response was YES. [2023-11-19 08:00:32,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5578 conditions, 741 events. 304/741 cut-off events. For 6662/6664 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4596 event pairs, 33 based on Foata normal form. 10/751 useless extension candidates. Maximal degree in co-relation 5510. Up to 438 conditions per place. [2023-11-19 08:00:32,883 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 199 selfloop transitions, 59 changer transitions 19/278 dead transitions. [2023-11-19 08:00:32,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 278 transitions, 4437 flow [2023-11-19 08:00:32,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:00:32,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 08:00:32,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 678 transitions. [2023-11-19 08:00:32,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40070921985815605 [2023-11-19 08:00:32,886 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 678 transitions. [2023-11-19 08:00:32,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 678 transitions. [2023-11-19 08:00:32,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:32,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 678 transitions. [2023-11-19 08:00:32,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.5) internal successors, (678), 12 states have internal predecessors, (678), 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 08:00:32,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:32,893 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:32,893 INFO L175 Difference]: Start difference. First operand has 145 places, 209 transitions, 3035 flow. Second operand 12 states and 678 transitions. [2023-11-19 08:00:32,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 278 transitions, 4437 flow [2023-11-19 08:00:32,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 278 transitions, 4288 flow, removed 41 selfloop flow, removed 6 redundant places. [2023-11-19 08:00:32,971 INFO L231 Difference]: Finished difference. Result has 153 places, 220 transitions, 3272 flow [2023-11-19 08:00:32,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=2920, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3272, PETRI_PLACES=153, PETRI_TRANSITIONS=220} [2023-11-19 08:00:32,972 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 129 predicate places. [2023-11-19 08:00:32,973 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 220 transitions, 3272 flow [2023-11-19 08:00:32,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:32,973 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:32,973 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:32,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 08:00:32,974 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:32,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:32,974 INFO L85 PathProgramCache]: Analyzing trace with hash -417531516, now seen corresponding path program 8 times [2023-11-19 08:00:32,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:32,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562626873] [2023-11-19 08:00:32,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:32,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:33,679 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 08:00:33,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:33,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562626873] [2023-11-19 08:00:33,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562626873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:33,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:33,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:33,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840313568] [2023-11-19 08:00:33,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:33,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:33,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:33,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:33,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:34,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-19 08:00:34,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 220 transitions, 3272 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:34,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:34,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-19 08:00:34,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:34,967 INFO L124 PetriNetUnfolderBase]: 288/710 cut-off events. [2023-11-19 08:00:34,967 INFO L125 PetriNetUnfolderBase]: For 5958/5959 co-relation queries the response was YES. [2023-11-19 08:00:34,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5235 conditions, 710 events. 288/710 cut-off events. For 5958/5959 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4382 event pairs, 31 based on Foata normal form. 10/720 useless extension candidates. Maximal degree in co-relation 5164. Up to 433 conditions per place. [2023-11-19 08:00:34,980 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 179 selfloop transitions, 57 changer transitions 28/265 dead transitions. [2023-11-19 08:00:34,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 265 transitions, 4365 flow [2023-11-19 08:00:34,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:00:34,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-11-19 08:00:34,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 828 transitions. [2023-11-19 08:00:34,983 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39148936170212767 [2023-11-19 08:00:34,983 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 828 transitions. [2023-11-19 08:00:34,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 828 transitions. [2023-11-19 08:00:34,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:34,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 828 transitions. [2023-11-19 08:00:34,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 55.2) internal successors, (828), 15 states have internal predecessors, (828), 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 08:00:34,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 141.0) internal successors, (2256), 16 states have internal predecessors, (2256), 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 08:00:34,991 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 141.0) internal successors, (2256), 16 states have internal predecessors, (2256), 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 08:00:34,991 INFO L175 Difference]: Start difference. First operand has 153 places, 220 transitions, 3272 flow. Second operand 15 states and 828 transitions. [2023-11-19 08:00:34,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 265 transitions, 4365 flow [2023-11-19 08:00:35,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 265 transitions, 4260 flow, removed 25 selfloop flow, removed 7 redundant places. [2023-11-19 08:00:35,074 INFO L231 Difference]: Finished difference. Result has 164 places, 216 transitions, 3258 flow [2023-11-19 08:00:35,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=3187, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3258, PETRI_PLACES=164, PETRI_TRANSITIONS=216} [2023-11-19 08:00:35,076 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 140 predicate places. [2023-11-19 08:00:35,076 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 216 transitions, 3258 flow [2023-11-19 08:00:35,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:35,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:35,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:35,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 08:00:35,077 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:35,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:35,078 INFO L85 PathProgramCache]: Analyzing trace with hash 896629430, now seen corresponding path program 9 times [2023-11-19 08:00:35,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:35,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586700815] [2023-11-19 08:00:35,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:35,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:35,545 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 08:00:35,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:35,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586700815] [2023-11-19 08:00:35,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586700815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:35,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:35,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:35,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176498708] [2023-11-19 08:00:35,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:35,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:35,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:35,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:35,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:36,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-19 08:00:36,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 216 transitions, 3258 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 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 08:00:36,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:36,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-19 08:00:36,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:36,744 INFO L124 PetriNetUnfolderBase]: 313/749 cut-off events. [2023-11-19 08:00:36,744 INFO L125 PetriNetUnfolderBase]: For 6728/6730 co-relation queries the response was YES. [2023-11-19 08:00:36,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5579 conditions, 749 events. 313/749 cut-off events. For 6728/6730 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4579 event pairs, 23 based on Foata normal form. 10/759 useless extension candidates. Maximal degree in co-relation 5504. Up to 230 conditions per place. [2023-11-19 08:00:36,757 INFO L140 encePairwiseOnDemand]: 129/141 looper letters, 240 selfloop transitions, 55 changer transitions 32/328 dead transitions. [2023-11-19 08:00:36,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 328 transitions, 5286 flow [2023-11-19 08:00:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:00:36,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-19 08:00:36,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 698 transitions. [2023-11-19 08:00:36,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41252955082742315 [2023-11-19 08:00:36,761 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 698 transitions. [2023-11-19 08:00:36,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 698 transitions. [2023-11-19 08:00:36,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:36,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 698 transitions. [2023-11-19 08:00:36,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 58.166666666666664) internal successors, (698), 12 states have internal predecessors, (698), 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 08:00:36,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:36,768 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 141.0) internal successors, (1833), 13 states have internal predecessors, (1833), 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 08:00:36,769 INFO L175 Difference]: Start difference. First operand has 164 places, 216 transitions, 3258 flow. Second operand 12 states and 698 transitions. [2023-11-19 08:00:36,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 328 transitions, 5286 flow [2023-11-19 08:00:36,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 328 transitions, 5047 flow, removed 57 selfloop flow, removed 15 redundant places. [2023-11-19 08:00:36,867 INFO L231 Difference]: Finished difference. Result has 159 places, 235 transitions, 3519 flow [2023-11-19 08:00:36,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=3105, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3519, PETRI_PLACES=159, PETRI_TRANSITIONS=235} [2023-11-19 08:00:36,868 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 135 predicate places. [2023-11-19 08:00:36,868 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 235 transitions, 3519 flow [2023-11-19 08:00:36,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 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 08:00:36,869 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:36,869 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:36,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 08:00:36,870 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:36,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:36,870 INFO L85 PathProgramCache]: Analyzing trace with hash 669675918, now seen corresponding path program 10 times [2023-11-19 08:00:36,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:36,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852613433] [2023-11-19 08:00:36,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:36,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:37,444 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 08:00:37,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:37,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852613433] [2023-11-19 08:00:37,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852613433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:37,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:37,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:37,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652623905] [2023-11-19 08:00:37,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:37,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:37,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:37,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:37,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:37,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-19 08:00:37,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 235 transitions, 3519 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:37,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:37,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-19 08:00:37,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:38,725 INFO L124 PetriNetUnfolderBase]: 300/747 cut-off events. [2023-11-19 08:00:38,725 INFO L125 PetriNetUnfolderBase]: For 7330/7332 co-relation queries the response was YES. [2023-11-19 08:00:38,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5710 conditions, 747 events. 300/747 cut-off events. For 7330/7332 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4701 event pairs, 36 based on Foata normal form. 10/757 useless extension candidates. Maximal degree in co-relation 5636. Up to 577 conditions per place. [2023-11-19 08:00:38,740 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 159 selfloop transitions, 104 changer transitions 17/281 dead transitions. [2023-11-19 08:00:38,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 281 transitions, 4708 flow [2023-11-19 08:00:38,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 08:00:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-19 08:00:38,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 721 transitions. [2023-11-19 08:00:38,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3933442444080742 [2023-11-19 08:00:38,744 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 721 transitions. [2023-11-19 08:00:38,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 721 transitions. [2023-11-19 08:00:38,745 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:38,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 721 transitions. [2023-11-19 08:00:38,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.46153846153846) internal successors, (721), 13 states have internal predecessors, (721), 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 08:00:38,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 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 08:00:38,752 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 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 08:00:38,753 INFO L175 Difference]: Start difference. First operand has 159 places, 235 transitions, 3519 flow. Second operand 13 states and 721 transitions. [2023-11-19 08:00:38,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 281 transitions, 4708 flow [2023-11-19 08:00:38,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 281 transitions, 4533 flow, removed 47 selfloop flow, removed 7 redundant places. [2023-11-19 08:00:38,856 INFO L231 Difference]: Finished difference. Result has 169 places, 247 transitions, 3866 flow [2023-11-19 08:00:38,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=3368, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3866, PETRI_PLACES=169, PETRI_TRANSITIONS=247} [2023-11-19 08:00:38,858 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 145 predicate places. [2023-11-19 08:00:38,859 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 247 transitions, 3866 flow [2023-11-19 08:00:38,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:38,859 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:38,860 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:38,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 08:00:38,860 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:38,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:38,862 INFO L85 PathProgramCache]: Analyzing trace with hash -404206888, now seen corresponding path program 4 times [2023-11-19 08:00:38,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:38,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561191423] [2023-11-19 08:00:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:38,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:39,339 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 08:00:39,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:39,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561191423] [2023-11-19 08:00:39,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561191423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:39,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:39,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:39,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881217818] [2023-11-19 08:00:39,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:39,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:39,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:39,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:39,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:39,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 141 [2023-11-19 08:00:39,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 247 transitions, 3866 flow. Second operand has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 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 08:00:39,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:39,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 141 [2023-11-19 08:00:39,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:40,760 INFO L124 PetriNetUnfolderBase]: 301/769 cut-off events. [2023-11-19 08:00:40,760 INFO L125 PetriNetUnfolderBase]: For 7829/7835 co-relation queries the response was YES. [2023-11-19 08:00:40,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6021 conditions, 769 events. 301/769 cut-off events. For 7829/7835 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4960 event pairs, 13 based on Foata normal form. 10/778 useless extension candidates. Maximal degree in co-relation 5942. Up to 314 conditions per place. [2023-11-19 08:00:40,773 INFO L140 encePairwiseOnDemand]: 125/141 looper letters, 148 selfloop transitions, 157 changer transitions 32/338 dead transitions. [2023-11-19 08:00:40,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 338 transitions, 5764 flow [2023-11-19 08:00:40,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 08:00:40,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2023-11-19 08:00:40,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 806 transitions. [2023-11-19 08:00:40,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4083080040526849 [2023-11-19 08:00:40,777 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 806 transitions. [2023-11-19 08:00:40,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 806 transitions. [2023-11-19 08:00:40,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:40,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 806 transitions. [2023-11-19 08:00:40,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 57.57142857142857) internal successors, (806), 14 states have internal predecessors, (806), 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 08:00:40,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 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 08:00:40,787 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 141.0) internal successors, (2115), 15 states have internal predecessors, (2115), 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 08:00:40,787 INFO L175 Difference]: Start difference. First operand has 169 places, 247 transitions, 3866 flow. Second operand 14 states and 806 transitions. [2023-11-19 08:00:40,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 338 transitions, 5764 flow [2023-11-19 08:00:40,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 338 transitions, 5647 flow, removed 25 selfloop flow, removed 5 redundant places. [2023-11-19 08:00:40,909 INFO L231 Difference]: Finished difference. Result has 182 places, 263 transitions, 4555 flow [2023-11-19 08:00:40,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=3785, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=4555, PETRI_PLACES=182, PETRI_TRANSITIONS=263} [2023-11-19 08:00:40,910 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 158 predicate places. [2023-11-19 08:00:40,910 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 263 transitions, 4555 flow [2023-11-19 08:00:40,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.09090909090909) internal successors, (573), 11 states have internal predecessors, (573), 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 08:00:40,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:40,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:40,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 08:00:40,912 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:40,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:40,912 INFO L85 PathProgramCache]: Analyzing trace with hash -937250622, now seen corresponding path program 11 times [2023-11-19 08:00:40,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:40,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970730495] [2023-11-19 08:00:40,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:40,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,660 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 08:00:41,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:41,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970730495] [2023-11-19 08:00:41,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970730495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:41,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:41,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:41,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574256921] [2023-11-19 08:00:41,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:41,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:41,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:41,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:41,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:42,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-19 08:00:42,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 263 transitions, 4555 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:42,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:42,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-19 08:00:42,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:42,890 INFO L124 PetriNetUnfolderBase]: 316/787 cut-off events. [2023-11-19 08:00:42,891 INFO L125 PetriNetUnfolderBase]: For 9332/9333 co-relation queries the response was YES. [2023-11-19 08:00:42,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6510 conditions, 787 events. 316/787 cut-off events. For 9332/9333 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5008 event pairs, 32 based on Foata normal form. 10/797 useless extension candidates. Maximal degree in co-relation 6425. Up to 615 conditions per place. [2023-11-19 08:00:42,900 INFO L140 encePairwiseOnDemand]: 124/141 looper letters, 154 selfloop transitions, 122 changer transitions 23/300 dead transitions. [2023-11-19 08:00:42,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 300 transitions, 5722 flow [2023-11-19 08:00:42,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-19 08:00:42,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-19 08:00:42,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 725 transitions. [2023-11-19 08:00:42,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3955264593562466 [2023-11-19 08:00:42,905 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 725 transitions. [2023-11-19 08:00:42,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 725 transitions. [2023-11-19 08:00:42,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:42,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 725 transitions. [2023-11-19 08:00:42,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 55.76923076923077) internal successors, (725), 13 states have internal predecessors, (725), 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 08:00:42,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 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 08:00:42,911 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 141.0) internal successors, (1974), 14 states have internal predecessors, (1974), 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 08:00:42,912 INFO L175 Difference]: Start difference. First operand has 182 places, 263 transitions, 4555 flow. Second operand 13 states and 725 transitions. [2023-11-19 08:00:42,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 300 transitions, 5722 flow [2023-11-19 08:00:43,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 300 transitions, 5542 flow, removed 55 selfloop flow, removed 7 redundant places. [2023-11-19 08:00:43,022 INFO L231 Difference]: Finished difference. Result has 191 places, 262 transitions, 4702 flow [2023-11-19 08:00:43,022 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=4394, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4702, PETRI_PLACES=191, PETRI_TRANSITIONS=262} [2023-11-19 08:00:43,023 INFO L281 CegarLoopForPetriNet]: 24 programPoint places, 167 predicate places. [2023-11-19 08:00:43,023 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 262 transitions, 4702 flow [2023-11-19 08:00:43,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:43,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:43,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:43,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 08:00:43,024 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-19 08:00:43,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:43,025 INFO L85 PathProgramCache]: Analyzing trace with hash -187397064, now seen corresponding path program 12 times [2023-11-19 08:00:43,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:43,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145501404] [2023-11-19 08:00:43,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:43,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:43,603 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 08:00:43,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:43,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145501404] [2023-11-19 08:00:43,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145501404] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:43,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:43,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:43,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535174011] [2023-11-19 08:00:43,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:43,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:43,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:43,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:43,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:44,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 141 [2023-11-19 08:00:44,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 262 transitions, 4702 flow. Second operand has 11 states, 11 states have (on average 51.09090909090909) internal successors, (562), 11 states have internal predecessors, (562), 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 08:00:44,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:44,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 141 [2023-11-19 08:00:44,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand