./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme --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 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:50:04,170 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:50:04,317 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:50:04,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:50:04,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:50:04,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:50:04,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:50:04,376 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:50:04,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:50:04,381 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:50:04,383 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:50:04,383 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:50:04,384 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:50:04,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:50:04,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:50:04,386 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:50:04,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:50:04,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:50:04,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:50:04,388 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:50:04,388 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:50:04,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:50:04,389 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:50:04,391 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:50:04,392 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:50:04,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:50:04,392 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:50:04,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:50:04,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:50:04,394 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:50:04,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:50:04,396 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:50:04,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:50:04,396 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:50:04,397 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:50:04,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:50:04,397 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:50:04,397 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:50:04,398 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:50:04,398 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:50:04,398 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:50:04,398 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_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 [2023-11-26 10:50:04,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:50:04,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:50:04,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:50:04,687 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:50:04,687 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:50:04,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread/stateful01-1.i [2023-11-26 10:50:07,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:50:08,178 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:50:08,179 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/sv-benchmarks/c/pthread/stateful01-1.i [2023-11-26 10:50:08,210 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/data/00e7887aa/dcacbcba87834bd5bc62b768315ff345/FLAG96003bbbe [2023-11-26 10:50:08,227 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/data/00e7887aa/dcacbcba87834bd5bc62b768315ff345 [2023-11-26 10:50:08,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:50:08,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:50:08,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:50:08,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:50:08,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:50:08,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c76a204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08, skipping insertion in model container [2023-11-26 10:50:08,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:50:08,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:50:08,666 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:50:08,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:50:08,772 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:50:08,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08 WrapperNode [2023-11-26 10:50:08,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:50:08,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:50:08,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:50:08,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:50:08,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,863 INFO L138 Inliner]: procedures = 169, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2023-11-26 10:50:08,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:50:08,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:50:08,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:50:08,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:50:08,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,881 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,892 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:50:08,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:50:08,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:50:08,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:50:08,927 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (1/1) ... [2023-11-26 10:50:08,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:50:08,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:50:08,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:50:08,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:50:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:50:08,992 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 10:50:08,992 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 10:50:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 10:50:08,993 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 10:50:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:50:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 10:50:08,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:50:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:50:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:50:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:50:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 10:50:08,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:50:08,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:50:08,998 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:50:09,147 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:50:09,150 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:50:09,447 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:50:09,491 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:50:09,491 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:50:09,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:50:09 BoogieIcfgContainer [2023-11-26 10:50:09,493 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:50:09,496 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:50:09,496 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:50:09,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:50:09,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:50:08" (1/3) ... [2023-11-26 10:50:09,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf68eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:50:09, skipping insertion in model container [2023-11-26 10:50:09,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:50:08" (2/3) ... [2023-11-26 10:50:09,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf68eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:50:09, skipping insertion in model container [2023-11-26 10:50:09,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:50:09" (3/3) ... [2023-11-26 10:50:09,503 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2023-11-26 10:50:09,512 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:50:09,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:50:09,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-26 10:50:09,525 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:50:09,643 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 10:50:09,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 163 transitions, 340 flow [2023-11-26 10:50:09,807 INFO L124 PetriNetUnfolderBase]: 3/161 cut-off events. [2023-11-26 10:50:09,808 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 10:50:09,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 161 events. 3/161 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 166 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2023-11-26 10:50:09,812 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 163 transitions, 340 flow [2023-11-26 10:50:09,818 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 139 transitions, 290 flow [2023-11-26 10:50:09,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:50:09,836 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;@3c23c49c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:50:09,836 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-26 10:50:09,845 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:50:09,845 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2023-11-26 10:50:09,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:50:09,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:09,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:09,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-26 10:50:09,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:09,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1867224771, now seen corresponding path program 1 times [2023-11-26 10:50:09,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:09,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263079220] [2023-11-26 10:50:09,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:09,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:10,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:10,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263079220] [2023-11-26 10:50:10,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263079220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:10,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:10,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:10,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076122263] [2023-11-26 10:50:10,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:10,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:10,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:10,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:10,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:10,309 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 163 [2023-11-26 10:50:10,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 139 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2023-11-26 10:50:10,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:10,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 163 [2023-11-26 10:50:10,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:10,521 INFO L124 PetriNetUnfolderBase]: 48/464 cut-off events. [2023-11-26 10:50:10,521 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-11-26 10:50:10,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 464 events. 48/464 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2083 event pairs, 48 based on Foata normal form. 0/412 useless extension candidates. Maximal degree in co-relation 472. Up to 117 conditions per place. [2023-11-26 10:50:10,530 INFO L140 encePairwiseOnDemand]: 160/163 looper letters, 20 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2023-11-26 10:50:10,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 138 transitions, 332 flow [2023-11-26 10:50:10,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:10,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:10,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 431 transitions. [2023-11-26 10:50:10,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8813905930470347 [2023-11-26 10:50:10,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 431 transitions. [2023-11-26 10:50:10,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 431 transitions. [2023-11-26 10:50:10,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:10,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 431 transitions. [2023-11-26 10:50:10,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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) [2023-11-26 10:50:10,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:10,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:10,568 INFO L175 Difference]: Start difference. First operand has 146 places, 139 transitions, 290 flow. Second operand 3 states and 431 transitions. [2023-11-26 10:50:10,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 138 transitions, 332 flow [2023-11-26 10:50:10,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 138 transitions, 324 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:50:10,578 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 284 flow [2023-11-26 10:50:10,580 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2023-11-26 10:50:10,584 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -3 predicate places. [2023-11-26 10:50:10,584 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 284 flow [2023-11-26 10:50:10,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2023-11-26 10:50:10,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:10,585 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:10,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:50:10,586 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-26 10:50:10,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:10,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1079818963, now seen corresponding path program 1 times [2023-11-26 10:50:10,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:10,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138950644] [2023-11-26 10:50:10,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:10,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:10,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:10,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138950644] [2023-11-26 10:50:10,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138950644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:10,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:10,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:10,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011837499] [2023-11-26 10:50:10,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:10,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:10,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:10,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:10,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:10,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 163 [2023-11-26 10:50:10,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2023-11-26 10:50:10,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:10,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 163 [2023-11-26 10:50:10,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:10,898 INFO L124 PetriNetUnfolderBase]: 48/463 cut-off events. [2023-11-26 10:50:10,898 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-26 10:50:10,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 463 events. 48/463 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2043 event pairs, 48 based on Foata normal form. 0/414 useless extension candidates. Maximal degree in co-relation 555. Up to 117 conditions per place. [2023-11-26 10:50:10,905 INFO L140 encePairwiseOnDemand]: 160/163 looper letters, 20 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2023-11-26 10:50:10,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 137 transitions, 326 flow [2023-11-26 10:50:10,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:10,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:10,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 431 transitions. [2023-11-26 10:50:10,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8813905930470347 [2023-11-26 10:50:10,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 431 transitions. [2023-11-26 10:50:10,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 431 transitions. [2023-11-26 10:50:10,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:10,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 431 transitions. [2023-11-26 10:50:10,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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) [2023-11-26 10:50:10,915 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:10,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:10,916 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 284 flow. Second operand 3 states and 431 transitions. [2023-11-26 10:50:10,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 137 transitions, 326 flow [2023-11-26 10:50:10,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 137 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:10,922 INFO L231 Difference]: Finished difference. Result has 142 places, 137 transitions, 282 flow [2023-11-26 10:50:10,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=142, PETRI_TRANSITIONS=137} [2023-11-26 10:50:10,924 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2023-11-26 10:50:10,924 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 137 transitions, 282 flow [2023-11-26 10:50:10,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2023-11-26 10:50:10,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:10,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:10,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:50:10,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-26 10:50:10,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:10,927 INFO L85 PathProgramCache]: Analyzing trace with hash -2035045326, now seen corresponding path program 1 times [2023-11-26 10:50:10,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:10,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974612430] [2023-11-26 10:50:10,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:10,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:11,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:11,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974612430] [2023-11-26 10:50:11,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974612430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:11,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:11,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:11,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7777311] [2023-11-26 10:50:11,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:11,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:11,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:11,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:11,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:11,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 163 [2023-11-26 10:50:11,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 137 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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) [2023-11-26 10:50:11,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:11,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 163 [2023-11-26 10:50:11,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:11,217 INFO L124 PetriNetUnfolderBase]: 84/565 cut-off events. [2023-11-26 10:50:11,218 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-26 10:50:11,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 565 events. 84/565 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2978 event pairs, 38 based on Foata normal form. 0/497 useless extension candidates. Maximal degree in co-relation 730. Up to 129 conditions per place. [2023-11-26 10:50:11,224 INFO L140 encePairwiseOnDemand]: 153/163 looper letters, 32 selfloop transitions, 7 changer transitions 0/152 dead transitions. [2023-11-26 10:50:11,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 152 transitions, 392 flow [2023-11-26 10:50:11,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:11,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:11,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2023-11-26 10:50:11,227 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9202453987730062 [2023-11-26 10:50:11,227 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2023-11-26 10:50:11,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2023-11-26 10:50:11,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:11,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2023-11-26 10:50:11,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 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) [2023-11-26 10:50:11,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:11,232 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:11,233 INFO L175 Difference]: Start difference. First operand has 142 places, 137 transitions, 282 flow. Second operand 3 states and 450 transitions. [2023-11-26 10:50:11,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 152 transitions, 392 flow [2023-11-26 10:50:11,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 152 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:11,238 INFO L231 Difference]: Finished difference. Result has 143 places, 142 transitions, 332 flow [2023-11-26 10:50:11,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=143, PETRI_TRANSITIONS=142} [2023-11-26 10:50:11,239 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -3 predicate places. [2023-11-26 10:50:11,240 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 142 transitions, 332 flow [2023-11-26 10:50:11,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 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) [2023-11-26 10:50:11,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:11,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:11,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:50:11,241 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-26 10:50:11,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:11,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1626076250, now seen corresponding path program 1 times [2023-11-26 10:50:11,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:11,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321543622] [2023-11-26 10:50:11,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:11,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:11,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:11,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321543622] [2023-11-26 10:50:11,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321543622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:11,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:11,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:11,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734095340] [2023-11-26 10:50:11,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:11,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:11,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:11,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:11,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:11,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 163 [2023-11-26 10:50:11,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 142 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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) [2023-11-26 10:50:11,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:11,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 163 [2023-11-26 10:50:11,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:11,543 INFO L124 PetriNetUnfolderBase]: 103/696 cut-off events. [2023-11-26 10:50:11,544 INFO L125 PetriNetUnfolderBase]: For 146/160 co-relation queries the response was YES. [2023-11-26 10:50:11,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 696 events. 103/696 cut-off events. For 146/160 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3998 event pairs, 60 based on Foata normal form. 6/635 useless extension candidates. Maximal degree in co-relation 812. Up to 195 conditions per place. [2023-11-26 10:50:11,551 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 29 selfloop transitions, 7 changer transitions 0/152 dead transitions. [2023-11-26 10:50:11,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 152 transitions, 435 flow [2023-11-26 10:50:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:11,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:11,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-11-26 10:50:11,554 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9120654396728016 [2023-11-26 10:50:11,554 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-11-26 10:50:11,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-11-26 10:50:11,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:11,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-11-26 10:50:11,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 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) [2023-11-26 10:50:11,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:11,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:11,559 INFO L175 Difference]: Start difference. First operand has 143 places, 142 transitions, 332 flow. Second operand 3 states and 446 transitions. [2023-11-26 10:50:11,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 152 transitions, 435 flow [2023-11-26 10:50:11,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 152 transitions, 417 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:11,565 INFO L231 Difference]: Finished difference. Result has 145 places, 147 transitions, 374 flow [2023-11-26 10:50:11,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=145, PETRI_TRANSITIONS=147} [2023-11-26 10:50:11,566 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -1 predicate places. [2023-11-26 10:50:11,566 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 147 transitions, 374 flow [2023-11-26 10:50:11,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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) [2023-11-26 10:50:11,567 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:11,567 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:11,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:50:11,568 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-26 10:50:11,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:11,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1716665133, now seen corresponding path program 1 times [2023-11-26 10:50:11,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:11,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104580637] [2023-11-26 10:50:11,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:11,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:12,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:12,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104580637] [2023-11-26 10:50:12,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104580637] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:12,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:12,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:50:12,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940645605] [2023-11-26 10:50:12,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:12,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:50:12,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:12,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:50:12,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:50:12,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 163 [2023-11-26 10:50:12,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 147 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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) [2023-11-26 10:50:12,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:12,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 163 [2023-11-26 10:50:12,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:12,762 INFO L124 PetriNetUnfolderBase]: 349/1375 cut-off events. [2023-11-26 10:50:12,762 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-26 10:50:12,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2145 conditions, 1375 events. 349/1375 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 10213 event pairs, 24 based on Foata normal form. 0/1247 useless extension candidates. Maximal degree in co-relation 711. Up to 226 conditions per place. [2023-11-26 10:50:12,778 INFO L140 encePairwiseOnDemand]: 158/163 looper letters, 47 selfloop transitions, 4 changer transitions 0/178 dead transitions. [2023-11-26 10:50:12,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 178 transitions, 538 flow [2023-11-26 10:50:12,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:50:12,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:50:12,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 880 transitions. [2023-11-26 10:50:12,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8997955010224948 [2023-11-26 10:50:12,783 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 880 transitions. [2023-11-26 10:50:12,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 880 transitions. [2023-11-26 10:50:12,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:12,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 880 transitions. [2023-11-26 10:50:12,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 146.66666666666666) internal successors, (880), 6 states have internal predecessors, (880), 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) [2023-11-26 10:50:12,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 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) [2023-11-26 10:50:12,791 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 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) [2023-11-26 10:50:12,792 INFO L175 Difference]: Start difference. First operand has 145 places, 147 transitions, 374 flow. Second operand 6 states and 880 transitions. [2023-11-26 10:50:12,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 178 transitions, 538 flow [2023-11-26 10:50:12,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 178 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:12,798 INFO L231 Difference]: Finished difference. Result has 147 places, 146 transitions, 366 flow [2023-11-26 10:50:12,799 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=366, PETRI_PLACES=147, PETRI_TRANSITIONS=146} [2023-11-26 10:50:12,800 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2023-11-26 10:50:12,800 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 146 transitions, 366 flow [2023-11-26 10:50:12,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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) [2023-11-26 10:50:12,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:12,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:12,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:50:12,802 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-26 10:50:12,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:12,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1597413023, now seen corresponding path program 1 times [2023-11-26 10:50:12,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:12,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152894683] [2023-11-26 10:50:12,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:12,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:12,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:12,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:12,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152894683] [2023-11-26 10:50:12,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152894683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:12,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:12,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:12,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260651850] [2023-11-26 10:50:12,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:12,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:12,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:12,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:12,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:12,912 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 163 [2023-11-26 10:50:12,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 146 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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) [2023-11-26 10:50:12,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:12,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 163 [2023-11-26 10:50:12,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:13,059 INFO L124 PetriNetUnfolderBase]: 122/817 cut-off events. [2023-11-26 10:50:13,059 INFO L125 PetriNetUnfolderBase]: For 174/182 co-relation queries the response was YES. [2023-11-26 10:50:13,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 817 events. 122/817 cut-off events. For 174/182 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5039 event pairs, 62 based on Foata normal form. 2/729 useless extension candidates. Maximal degree in co-relation 1148. Up to 220 conditions per place. [2023-11-26 10:50:13,066 INFO L140 encePairwiseOnDemand]: 157/163 looper letters, 30 selfloop transitions, 9 changer transitions 0/156 dead transitions. [2023-11-26 10:50:13,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 156 transitions, 475 flow [2023-11-26 10:50:13,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:13,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:13,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-11-26 10:50:13,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9120654396728016 [2023-11-26 10:50:13,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-11-26 10:50:13,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-11-26 10:50:13,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:13,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-11-26 10:50:13,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 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) [2023-11-26 10:50:13,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:13,073 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:13,074 INFO L175 Difference]: Start difference. First operand has 147 places, 146 transitions, 366 flow. Second operand 3 states and 446 transitions. [2023-11-26 10:50:13,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 156 transitions, 475 flow [2023-11-26 10:50:13,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 156 transitions, 468 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:50:13,079 INFO L231 Difference]: Finished difference. Result has 147 places, 151 transitions, 427 flow [2023-11-26 10:50:13,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=147, PETRI_TRANSITIONS=151} [2023-11-26 10:50:13,080 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2023-11-26 10:50:13,081 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 151 transitions, 427 flow [2023-11-26 10:50:13,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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) [2023-11-26 10:50:13,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:13,082 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:13,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:50:13,082 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-26 10:50:13,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:13,083 INFO L85 PathProgramCache]: Analyzing trace with hash 563206955, now seen corresponding path program 1 times [2023-11-26 10:50:13,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:13,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135853347] [2023-11-26 10:50:13,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:13,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:13,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:13,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:13,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135853347] [2023-11-26 10:50:13,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135853347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:13,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:13,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:13,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493055309] [2023-11-26 10:50:13,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:13,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:13,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:13,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:13,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:13,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 163 [2023-11-26 10:50:13,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 151 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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) [2023-11-26 10:50:13,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:13,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 163 [2023-11-26 10:50:13,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:13,320 INFO L124 PetriNetUnfolderBase]: 102/798 cut-off events. [2023-11-26 10:50:13,321 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES. [2023-11-26 10:50:13,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 798 events. 102/798 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4819 event pairs, 44 based on Foata normal form. 1/740 useless extension candidates. Maximal degree in co-relation 1145. Up to 146 conditions per place. [2023-11-26 10:50:13,328 INFO L140 encePairwiseOnDemand]: 153/163 looper letters, 30 selfloop transitions, 6 changer transitions 7/166 dead transitions. [2023-11-26 10:50:13,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 166 transitions, 535 flow [2023-11-26 10:50:13,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:13,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:13,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2023-11-26 10:50:13,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.918200408997955 [2023-11-26 10:50:13,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2023-11-26 10:50:13,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2023-11-26 10:50:13,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:13,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2023-11-26 10:50:13,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2023-11-26 10:50:13,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:13,335 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:13,335 INFO L175 Difference]: Start difference. First operand has 147 places, 151 transitions, 427 flow. Second operand 3 states and 449 transitions. [2023-11-26 10:50:13,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 166 transitions, 535 flow [2023-11-26 10:50:13,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 166 transitions, 517 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:13,342 INFO L231 Difference]: Finished difference. Result has 148 places, 149 transitions, 442 flow [2023-11-26 10:50:13,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=442, PETRI_PLACES=148, PETRI_TRANSITIONS=149} [2023-11-26 10:50:13,343 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, 2 predicate places. [2023-11-26 10:50:13,343 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 149 transitions, 442 flow [2023-11-26 10:50:13,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 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) [2023-11-26 10:50:13,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:13,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:13,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:50:13,345 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-26 10:50:13,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:13,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1748558205, now seen corresponding path program 1 times [2023-11-26 10:50:13,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:13,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459221071] [2023-11-26 10:50:13,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:13,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:13,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:13,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459221071] [2023-11-26 10:50:13,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459221071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:13,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:13,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:50:13,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750783618] [2023-11-26 10:50:13,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:13,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:13,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:13,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:13,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:13,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 163 [2023-11-26 10:50:13,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 149 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2023-11-26 10:50:13,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:13,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 163 [2023-11-26 10:50:13,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:13,580 INFO L124 PetriNetUnfolderBase]: 12/279 cut-off events. [2023-11-26 10:50:13,580 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-11-26 10:50:13,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 279 events. 12/279 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 823 event pairs, 4 based on Foata normal form. 8/276 useless extension candidates. Maximal degree in co-relation 201. Up to 27 conditions per place. [2023-11-26 10:50:13,582 INFO L140 encePairwiseOnDemand]: 155/163 looper letters, 8 selfloop transitions, 8 changer transitions 0/123 dead transitions. [2023-11-26 10:50:13,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 123 transitions, 336 flow [2023-11-26 10:50:13,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:13,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:13,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2023-11-26 10:50:13,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9304703476482618 [2023-11-26 10:50:13,586 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2023-11-26 10:50:13,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2023-11-26 10:50:13,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:13,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2023-11-26 10:50:13,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 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) [2023-11-26 10:50:13,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:13,591 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:13,591 INFO L175 Difference]: Start difference. First operand has 148 places, 149 transitions, 442 flow. Second operand 3 states and 455 transitions. [2023-11-26 10:50:13,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 123 transitions, 336 flow [2023-11-26 10:50:13,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 123 transitions, 284 flow, removed 10 selfloop flow, removed 10 redundant places. [2023-11-26 10:50:13,597 INFO L231 Difference]: Finished difference. Result has 127 places, 121 transitions, 262 flow [2023-11-26 10:50:13,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=127, PETRI_TRANSITIONS=121} [2023-11-26 10:50:13,598 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -19 predicate places. [2023-11-26 10:50:13,598 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 121 transitions, 262 flow [2023-11-26 10:50:13,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2023-11-26 10:50:13,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:13,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:13,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:50:13,599 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-26 10:50:13,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:13,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1201912988, now seen corresponding path program 1 times [2023-11-26 10:50:13,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:13,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865997735] [2023-11-26 10:50:13,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:13,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:13,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:13,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:13,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865997735] [2023-11-26 10:50:13,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865997735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:13,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:13,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:13,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374872258] [2023-11-26 10:50:13,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:13,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:13,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:13,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:13,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:13,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 163 [2023-11-26 10:50:13,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 121 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:13,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:13,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 163 [2023-11-26 10:50:13,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:13,755 INFO L124 PetriNetUnfolderBase]: 19/298 cut-off events. [2023-11-26 10:50:13,755 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-11-26 10:50:13,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 298 events. 19/298 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 953 event pairs, 17 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 292. Up to 70 conditions per place. [2023-11-26 10:50:13,757 INFO L140 encePairwiseOnDemand]: 160/163 looper letters, 18 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2023-11-26 10:50:13,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 121 transitions, 303 flow [2023-11-26 10:50:13,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:13,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:13,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2023-11-26 10:50:13,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8895705521472392 [2023-11-26 10:50:13,760 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2023-11-26 10:50:13,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2023-11-26 10:50:13,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:13,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2023-11-26 10:50:13,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2023-11-26 10:50:13,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:13,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:13,765 INFO L175 Difference]: Start difference. First operand has 127 places, 121 transitions, 262 flow. Second operand 3 states and 435 transitions. [2023-11-26 10:50:13,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 121 transitions, 303 flow [2023-11-26 10:50:13,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 121 transitions, 295 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:50:13,769 INFO L231 Difference]: Finished difference. Result has 127 places, 120 transitions, 256 flow [2023-11-26 10:50:13,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=127, PETRI_TRANSITIONS=120} [2023-11-26 10:50:13,770 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -19 predicate places. [2023-11-26 10:50:13,770 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 120 transitions, 256 flow [2023-11-26 10:50:13,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:50:13,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:13,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:13,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:50:13,772 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-26 10:50:13,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:13,772 INFO L85 PathProgramCache]: Analyzing trace with hash 2134049089, now seen corresponding path program 1 times [2023-11-26 10:50:13,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:13,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152382795] [2023-11-26 10:50:13,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:13,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:13,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:13,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:13,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152382795] [2023-11-26 10:50:13,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152382795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:13,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:13,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:50:13,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918258575] [2023-11-26 10:50:13,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:13,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:50:13,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:13,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:50:13,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:50:13,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 163 [2023-11-26 10:50:13,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 120 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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) [2023-11-26 10:50:13,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:13,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 163 [2023-11-26 10:50:13,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:13,910 INFO L124 PetriNetUnfolderBase]: 19/294 cut-off events. [2023-11-26 10:50:13,910 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-26 10:50:13,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 410 conditions, 294 events. 19/294 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 952 event pairs, 17 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 289. Up to 70 conditions per place. [2023-11-26 10:50:13,912 INFO L140 encePairwiseOnDemand]: 160/163 looper letters, 18 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2023-11-26 10:50:13,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 120 transitions, 297 flow [2023-11-26 10:50:13,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:50:13,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:50:13,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2023-11-26 10:50:13,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8895705521472392 [2023-11-26 10:50:13,914 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 435 transitions. [2023-11-26 10:50:13,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 435 transitions. [2023-11-26 10:50:13,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:13,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 435 transitions. [2023-11-26 10:50:13,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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) [2023-11-26 10:50:13,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:13,918 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 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) [2023-11-26 10:50:13,919 INFO L175 Difference]: Start difference. First operand has 127 places, 120 transitions, 256 flow. Second operand 3 states and 435 transitions. [2023-11-26 10:50:13,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 120 transitions, 297 flow [2023-11-26 10:50:13,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 120 transitions, 293 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:13,922 INFO L231 Difference]: Finished difference. Result has 126 places, 119 transitions, 254 flow [2023-11-26 10:50:13,922 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=126, PETRI_TRANSITIONS=119} [2023-11-26 10:50:13,923 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -20 predicate places. [2023-11-26 10:50:13,923 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 119 transitions, 254 flow [2023-11-26 10:50:13,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.33333333333334) internal successors, (424), 3 states have internal predecessors, (424), 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) [2023-11-26 10:50:13,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:50:13,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:13,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:50:13,925 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-26 10:50:13,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:50:13,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1555743784, now seen corresponding path program 1 times [2023-11-26 10:50:13,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:50:13,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093976728] [2023-11-26 10:50:13,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:50:13,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:50:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:50:14,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:50:14,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:50:14,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093976728] [2023-11-26 10:50:14,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093976728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:50:14,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:50:14,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:50:14,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482434292] [2023-11-26 10:50:14,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:50:14,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:50:14,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:50:14,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:50:14,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:50:14,711 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 163 [2023-11-26 10:50:14,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 119 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 140.33333333333334) internal successors, (842), 6 states have internal predecessors, (842), 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) [2023-11-26 10:50:14,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:50:14,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 163 [2023-11-26 10:50:14,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:50:14,837 INFO L124 PetriNetUnfolderBase]: 32/314 cut-off events. [2023-11-26 10:50:14,838 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-26 10:50:14,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 314 events. 32/314 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1006 event pairs, 12 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 347. Up to 46 conditions per place. [2023-11-26 10:50:14,839 INFO L140 encePairwiseOnDemand]: 158/163 looper letters, 0 selfloop transitions, 0 changer transitions 134/134 dead transitions. [2023-11-26 10:50:14,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 134 transitions, 368 flow [2023-11-26 10:50:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:50:14,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:50:14,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 863 transitions. [2023-11-26 10:50:14,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8824130879345603 [2023-11-26 10:50:14,843 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 863 transitions. [2023-11-26 10:50:14,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 863 transitions. [2023-11-26 10:50:14,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:50:14,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 863 transitions. [2023-11-26 10:50:14,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.83333333333334) internal successors, (863), 6 states have internal predecessors, (863), 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) [2023-11-26 10:50:14,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 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) [2023-11-26 10:50:14,850 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 163.0) internal successors, (1141), 7 states have internal predecessors, (1141), 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) [2023-11-26 10:50:14,850 INFO L175 Difference]: Start difference. First operand has 126 places, 119 transitions, 254 flow. Second operand 6 states and 863 transitions. [2023-11-26 10:50:14,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 134 transitions, 368 flow [2023-11-26 10:50:14,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 134 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:50:14,853 INFO L231 Difference]: Finished difference. Result has 128 places, 0 transitions, 0 flow [2023-11-26 10:50:14,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=128, PETRI_TRANSITIONS=0} [2023-11-26 10:50:14,854 INFO L281 CegarLoopForPetriNet]: 146 programPoint places, -18 predicate places. [2023-11-26 10:50:14,855 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 0 transitions, 0 flow [2023-11-26 10:50:14,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.33333333333334) internal successors, (842), 6 states have internal predecessors, (842), 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) [2023-11-26 10:50:14,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2023-11-26 10:50:14,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-11-26 10:50:14,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-11-26 10:50:14,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-11-26 10:50:14,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-11-26 10:50:14,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-11-26 10:50:14,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-11-26 10:50:14,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-11-26 10:50:14,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-11-26 10:50:14,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-11-26 10:50:14,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-11-26 10:50:14,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-11-26 10:50:14,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-11-26 10:50:14,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-11-26 10:50:14,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 24 remaining) [2023-11-26 10:50:14,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 24 remaining) [2023-11-26 10:50:14,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-11-26 10:50:14,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-11-26 10:50:14,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-11-26 10:50:14,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-11-26 10:50:14,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-11-26 10:50:14,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-11-26 10:50:14,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-11-26 10:50:14,868 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-11-26 10:50:14,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:50:14,868 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:50:14,874 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 10:50:14,874 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:50:14,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:50:14 BasicIcfg [2023-11-26 10:50:14,881 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:50:14,882 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:50:14,882 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:50:14,882 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:50:14,883 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:50:09" (3/4) ... [2023-11-26 10:50:14,884 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:50:14,887 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 10:50:14,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 10:50:14,896 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-26 10:50:14,897 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 10:50:14,897 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 10:50:14,897 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 10:50:15,010 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:50:15,011 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:50:15,011 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:50:15,012 INFO L158 Benchmark]: Toolchain (without parser) took 6777.21ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 123.7MB in the beginning and 160.9MB in the end (delta: -37.2MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2023-11-26 10:50:15,012 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:50:15,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 537.44ms. Allocated memory is still 155.2MB. Free memory was 123.7MB in the beginning and 103.4MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-26 10:50:15,013 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.01ms. Allocated memory is still 155.2MB. Free memory was 103.4MB in the beginning and 100.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:50:15,013 INFO L158 Benchmark]: Boogie Preprocessor took 59.54ms. Allocated memory is still 155.2MB. Free memory was 100.7MB in the beginning and 99.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:50:15,014 INFO L158 Benchmark]: RCFGBuilder took 568.30ms. Allocated memory is still 155.2MB. Free memory was 99.2MB in the beginning and 79.2MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 10:50:15,014 INFO L158 Benchmark]: TraceAbstraction took 5385.37ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 78.2MB in the beginning and 166.1MB in the end (delta: -87.9MB). Peak memory consumption was 85.6MB. Max. memory is 16.1GB. [2023-11-26 10:50:15,015 INFO L158 Benchmark]: Witness Printer took 129.62ms. Allocated memory is still 226.5MB. Free memory was 166.1MB in the beginning and 160.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:50:15,017 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 537.44ms. Allocated memory is still 155.2MB. Free memory was 123.7MB in the beginning and 103.4MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.01ms. Allocated memory is still 155.2MB. Free memory was 103.4MB in the beginning and 100.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.54ms. Allocated memory is still 155.2MB. Free memory was 100.7MB in the beginning and 99.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 568.30ms. Allocated memory is still 155.2MB. Free memory was 99.2MB in the beginning and 79.2MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5385.37ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 78.2MB in the beginning and 166.1MB in the end (delta: -87.9MB). Peak memory consumption was 85.6MB. Max. memory is 16.1GB. * Witness Printer took 129.62ms. Allocated memory is still 226.5MB. Free memory was 166.1MB in the beginning and 160.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 227 locations, 24 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 483 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 223 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 803 IncrementalHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 54 mSDtfsCounter, 803 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=442occurred in iteration=7, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 628 NumberOfCodeBlocks, 628 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 617 ConstructedInterpolants, 0 QuantifiedInterpolants, 813 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 10:50:15,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f505ce-d99c-4bcd-b41a-a034ef51d332/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE