./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/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_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/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_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/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 963498115a8eca6e92c68ab7fa8168826446f05b9b398350c3ee0745adf1bb45 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:03,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:03,816 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:42:03,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:03,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:03,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:03,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:03,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:03,859 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:42:03,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:42:03,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:03,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:03,866 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:03,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:03,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:42:03,869 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:42:03,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:42:03,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:42:03,885 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:03,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:42:03,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:42:03,888 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:42:03,888 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:42:03,889 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:42:03,889 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:42:03,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:03,890 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:03,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:03,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:03,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:42:03,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:03,892 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:03,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:42:03,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:42:03,893 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:42:03,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:42:03,894 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:42:03,894 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:42:03,894 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:42:03,895 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:42:03,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:42:03,898 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_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 963498115a8eca6e92c68ab7fa8168826446f05b9b398350c3ee0745adf1bb45 [2023-11-26 10:42:04,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:04,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:04,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:04,207 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:04,208 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:04,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt-race.i [2023-11-26 10:42:07,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:07,596 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:07,596 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/sv-benchmarks/c/pthread-ext/11_fmaxsymopt-race.i [2023-11-26 10:42:07,625 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/bin/uautomizer-verify-VRDe98Ueme/data/683ca0a86/67bd6bcac98c458eb9aea11ae80fb2ec/FLAG76a34d7d0 [2023-11-26 10:42:07,640 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/bin/uautomizer-verify-VRDe98Ueme/data/683ca0a86/67bd6bcac98c458eb9aea11ae80fb2ec [2023-11-26 10:42:07,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:07,644 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:07,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:07,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:07,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:07,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:07" (1/1) ... [2023-11-26 10:42:07,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16020e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:07, skipping insertion in model container [2023-11-26 10:42:07,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:07" (1/1) ... [2023-11-26 10:42:07,700 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:08,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:08,208 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:08,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:08,341 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:08,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08 WrapperNode [2023-11-26 10:42:08,342 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:08,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:08,344 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:08,344 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:08,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (1/1) ... [2023-11-26 10:42:08,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (1/1) ... [2023-11-26 10:42:08,413 INFO L138 Inliner]: procedures = 171, calls = 25, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 110 [2023-11-26 10:42:08,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:08,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:08,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:08,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:08,425 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (1/1) ... [2023-11-26 10:42:08,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (1/1) ... [2023-11-26 10:42:08,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (1/1) ... [2023-11-26 10:42:08,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (1/1) ... [2023-11-26 10:42:08,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (1/1) ... [2023-11-26 10:42:08,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (1/1) ... [2023-11-26 10:42:08,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (1/1) ... [2023-11-26 10:42:08,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (1/1) ... [2023-11-26 10:42:08,450 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:08,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:08,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:08,452 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:08,453 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (1/1) ... [2023-11-26 10:42:08,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:08,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:08,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:08,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c1e36a-3a2a-4c80-8f92-303f3cb08ddb/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:42:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-26 10:42:08,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-26 10:42:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:42:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:42:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:42:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:42:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:42:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:08,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:08,536 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 10:42:08,667 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:08,670 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:08,918 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:08,999 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:08,999 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:42:09,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:09 BoogieIcfgContainer [2023-11-26 10:42:09,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:09,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:42:09,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:42:09,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:42:09,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:42:07" (1/3) ... [2023-11-26 10:42:09,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af111c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:09, skipping insertion in model container [2023-11-26 10:42:09,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:08" (2/3) ... [2023-11-26 10:42:09,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af111c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:09, skipping insertion in model container [2023-11-26 10:42:09,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:09" (3/3) ... [2023-11-26 10:42:09,013 INFO L112 eAbstractionObserver]: Analyzing ICFG 11_fmaxsymopt-race.i [2023-11-26 10:42:09,022 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:42:09,057 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:42:09,057 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-26 10:42:09,057 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:42:09,172 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:42:09,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 107 transitions, 218 flow [2023-11-26 10:42:09,275 INFO L124 PetriNetUnfolderBase]: 10/118 cut-off events. [2023-11-26 10:42:09,275 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:42:09,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 118 events. 10/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 176 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 86. Up to 4 conditions per place. [2023-11-26 10:42:09,283 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 107 transitions, 218 flow [2023-11-26 10:42:09,289 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 107 transitions, 218 flow [2023-11-26 10:42:09,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:09,308 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;@20b6dc6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:09,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-11-26 10:42:09,326 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:42:09,326 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2023-11-26 10:42:09,327 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:42:09,327 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:09,328 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 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 10:42:09,329 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2023-11-26 10:42:09,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:09,335 INFO L85 PathProgramCache]: Analyzing trace with hash -146785618, now seen corresponding path program 1 times [2023-11-26 10:42:09,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:09,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679313981] [2023-11-26 10:42:09,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:09,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:09,487 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:09,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:09,554 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:42:09,555 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2023-11-26 10:42:09,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2023-11-26 10:42:09,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2023-11-26 10:42:09,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2023-11-26 10:42:09,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2023-11-26 10:42:09,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2023-11-26 10:42:09,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2023-11-26 10:42:09,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2023-11-26 10:42:09,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2023-11-26 10:42:09,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2023-11-26 10:42:09,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2023-11-26 10:42:09,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2023-11-26 10:42:09,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2023-11-26 10:42:09,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2023-11-26 10:42:09,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2023-11-26 10:42:09,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2023-11-26 10:42:09,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2023-11-26 10:42:09,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:42:09,564 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-26 10:42:09,568 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 10:42:09,568 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-26 10:42:09,636 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:42:09,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 181 transitions, 372 flow [2023-11-26 10:42:09,714 INFO L124 PetriNetUnfolderBase]: 19/205 cut-off events. [2023-11-26 10:42:09,714 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 10:42:09,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 205 events. 19/205 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 533 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 159. Up to 6 conditions per place. [2023-11-26 10:42:09,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 181 transitions, 372 flow [2023-11-26 10:42:09,724 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 181 transitions, 372 flow [2023-11-26 10:42:09,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:09,729 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;@20b6dc6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:09,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-26 10:42:09,748 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:42:09,749 INFO L124 PetriNetUnfolderBase]: 4/79 cut-off events. [2023-11-26 10:42:09,749 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 10:42:09,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:09,749 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 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 10:42:09,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-26 10:42:09,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:09,751 INFO L85 PathProgramCache]: Analyzing trace with hash 591226717, now seen corresponding path program 1 times [2023-11-26 10:42:09,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:09,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318646342] [2023-11-26 10:42:09,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:09,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:09,800 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:09,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:09,859 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:42:09,860 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2023-11-26 10:42:09,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-11-26 10:42:09,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-11-26 10:42:09,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-11-26 10:42:09,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-11-26 10:42:09,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-11-26 10:42:09,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-11-26 10:42:09,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-11-26 10:42:09,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-11-26 10:42:09,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-11-26 10:42:09,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-11-26 10:42:09,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-11-26 10:42:09,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-11-26 10:42:09,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-11-26 10:42:09,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-11-26 10:42:09,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-11-26 10:42:09,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-11-26 10:42:09,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-11-26 10:42:09,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-11-26 10:42:09,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-11-26 10:42:09,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-11-26 10:42:09,871 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-11-26 10:42:09,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-11-26 10:42:09,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-11-26 10:42:09,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-11-26 10:42:09,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:42:09,873 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-26 10:42:09,880 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 10:42:09,880 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-26 10:42:10,001 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:42:10,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 237 places, 255 transitions, 528 flow [2023-11-26 10:42:10,133 INFO L124 PetriNetUnfolderBase]: 28/292 cut-off events. [2023-11-26 10:42:10,134 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 10:42:10,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 292 events. 28/292 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 964 event pairs, 0 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 232. Up to 8 conditions per place. [2023-11-26 10:42:10,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 237 places, 255 transitions, 528 flow [2023-11-26 10:42:10,150 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 255 transitions, 528 flow [2023-11-26 10:42:10,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:10,161 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;@20b6dc6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:10,161 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-11-26 10:42:10,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:42:10,188 INFO L124 PetriNetUnfolderBase]: 7/111 cut-off events. [2023-11-26 10:42:10,189 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 10:42:10,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:10,189 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:10,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-26 10:42:10,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:10,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1216555659, now seen corresponding path program 1 times [2023-11-26 10:42:10,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:10,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264637890] [2023-11-26 10:42:10,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:10,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:10,388 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 10:42:10,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:10,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264637890] [2023-11-26 10:42:10,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264637890] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:10,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:10,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:42:10,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744142874] [2023-11-26 10:42:10,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:10,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:42:10,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:10,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:42:10,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:10,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 255 [2023-11-26 10:42:10,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 255 transitions, 528 flow. Second operand has 2 states, 2 states have (on average 218.0) internal successors, (436), 2 states have internal predecessors, (436), 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 10:42:10,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:10,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 255 [2023-11-26 10:42:10,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:10,734 INFO L124 PetriNetUnfolderBase]: 94/971 cut-off events. [2023-11-26 10:42:10,734 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2023-11-26 10:42:10,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1104 conditions, 971 events. 94/971 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6098 event pairs, 42 based on Foata normal form. 167/1003 useless extension candidates. Maximal degree in co-relation 334. Up to 82 conditions per place. [2023-11-26 10:42:10,755 INFO L140 encePairwiseOnDemand]: 229/255 looper letters, 9 selfloop transitions, 0 changer transitions 0/215 dead transitions. [2023-11-26 10:42:10,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 215 transitions, 466 flow [2023-11-26 10:42:10,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:42:10,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 10:42:10,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 469 transitions. [2023-11-26 10:42:10,780 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9196078431372549 [2023-11-26 10:42:10,781 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 469 transitions. [2023-11-26 10:42:10,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 469 transitions. [2023-11-26 10:42:10,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:10,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 469 transitions. [2023-11-26 10:42:10,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 234.5) internal successors, (469), 2 states have internal predecessors, (469), 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 10:42:10,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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 10:42:10,815 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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 10:42:10,817 INFO L175 Difference]: Start difference. First operand has 237 places, 255 transitions, 528 flow. Second operand 2 states and 469 transitions. [2023-11-26 10:42:10,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 215 transitions, 466 flow [2023-11-26 10:42:10,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 215 transitions, 464 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-26 10:42:10,831 INFO L231 Difference]: Finished difference. Result has 211 places, 215 transitions, 446 flow [2023-11-26 10:42:10,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=255, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=446, PETRI_PLACES=211, PETRI_TRANSITIONS=215} [2023-11-26 10:42:10,840 INFO L281 CegarLoopForPetriNet]: 237 programPoint places, -26 predicate places. [2023-11-26 10:42:10,840 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 215 transitions, 446 flow [2023-11-26 10:42:10,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 218.0) internal successors, (436), 2 states have internal predecessors, (436), 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 10:42:10,842 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:10,842 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 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 10:42:10,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:42:10,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2023-11-26 10:42:10,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:10,844 INFO L85 PathProgramCache]: Analyzing trace with hash 235453185, now seen corresponding path program 1 times [2023-11-26 10:42:10,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:10,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820594625] [2023-11-26 10:42:10,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:10,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:10,913 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:10,953 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:10,953 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:42:10,954 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2023-11-26 10:42:10,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2023-11-26 10:42:10,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2023-11-26 10:42:10,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2023-11-26 10:42:10,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2023-11-26 10:42:10,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2023-11-26 10:42:10,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2023-11-26 10:42:10,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2023-11-26 10:42:10,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2023-11-26 10:42:10,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2023-11-26 10:42:10,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2023-11-26 10:42:10,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2023-11-26 10:42:10,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2023-11-26 10:42:10,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2023-11-26 10:42:10,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2023-11-26 10:42:10,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2023-11-26 10:42:10,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2023-11-26 10:42:10,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2023-11-26 10:42:10,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2023-11-26 10:42:10,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2023-11-26 10:42:10,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2023-11-26 10:42:10,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2023-11-26 10:42:10,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2023-11-26 10:42:10,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2023-11-26 10:42:10,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2023-11-26 10:42:10,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2023-11-26 10:42:10,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2023-11-26 10:42:10,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2023-11-26 10:42:10,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2023-11-26 10:42:10,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2023-11-26 10:42:10,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2023-11-26 10:42:10,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2023-11-26 10:42:10,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2023-11-26 10:42:10,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:42:10,973 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 10:42:10,973 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 10:42:10,974 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-26 10:42:11,057 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:42:11,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 329 transitions, 686 flow [2023-11-26 10:42:11,169 INFO L124 PetriNetUnfolderBase]: 37/379 cut-off events. [2023-11-26 10:42:11,169 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-26 10:42:11,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 379 events. 37/379 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1436 event pairs, 0 based on Foata normal form. 0/305 useless extension candidates. Maximal degree in co-relation 305. Up to 10 conditions per place. [2023-11-26 10:42:11,179 INFO L82 GeneralOperation]: Start removeDead. Operand has 305 places, 329 transitions, 686 flow [2023-11-26 10:42:11,187 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 305 places, 329 transitions, 686 flow [2023-11-26 10:42:11,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:11,194 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;@20b6dc6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:11,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2023-11-26 10:42:11,210 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:42:11,210 INFO L124 PetriNetUnfolderBase]: 7/111 cut-off events. [2023-11-26 10:42:11,210 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 10:42:11,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:11,211 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:11,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:42:11,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:11,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1920787650, now seen corresponding path program 1 times [2023-11-26 10:42:11,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:11,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436860940] [2023-11-26 10:42:11,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:11,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:11,308 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 10:42:11,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:11,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436860940] [2023-11-26 10:42:11,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436860940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:11,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:11,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:42:11,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363097994] [2023-11-26 10:42:11,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:11,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:42:11,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:11,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:42:11,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:11,322 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 329 [2023-11-26 10:42:11,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 329 transitions, 686 flow. Second operand has 2 states, 2 states have (on average 280.0) internal successors, (560), 2 states have internal predecessors, (560), 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 10:42:11,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:11,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 329 [2023-11-26 10:42:11,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:12,376 INFO L124 PetriNetUnfolderBase]: 364/3014 cut-off events. [2023-11-26 10:42:12,376 INFO L125 PetriNetUnfolderBase]: For 496/496 co-relation queries the response was YES. [2023-11-26 10:42:12,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3526 conditions, 3014 events. 364/3014 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 26618 event pairs, 204 based on Foata normal form. 659/3256 useless extension candidates. Maximal degree in co-relation 1095. Up to 325 conditions per place. [2023-11-26 10:42:12,466 INFO L140 encePairwiseOnDemand]: 295/329 looper letters, 12 selfloop transitions, 0 changer transitions 0/278 dead transitions. [2023-11-26 10:42:12,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 278 transitions, 608 flow [2023-11-26 10:42:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:42:12,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 10:42:12,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 604 transitions. [2023-11-26 10:42:12,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9179331306990881 [2023-11-26 10:42:12,470 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 604 transitions. [2023-11-26 10:42:12,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 604 transitions. [2023-11-26 10:42:12,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:12,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 604 transitions. [2023-11-26 10:42:12,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 302.0) internal successors, (604), 2 states have internal predecessors, (604), 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 10:42:12,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:12,479 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:12,480 INFO L175 Difference]: Start difference. First operand has 305 places, 329 transitions, 686 flow. Second operand 2 states and 604 transitions. [2023-11-26 10:42:12,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 278 transitions, 608 flow [2023-11-26 10:42:12,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 278 transitions, 602 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-26 10:42:12,499 INFO L231 Difference]: Finished difference. Result has 272 places, 278 transitions, 578 flow [2023-11-26 10:42:12,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=578, PETRI_PLACES=272, PETRI_TRANSITIONS=278} [2023-11-26 10:42:12,502 INFO L281 CegarLoopForPetriNet]: 305 programPoint places, -33 predicate places. [2023-11-26 10:42:12,502 INFO L495 AbstractCegarLoop]: Abstraction has has 272 places, 278 transitions, 578 flow [2023-11-26 10:42:12,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 280.0) internal successors, (560), 2 states have internal predecessors, (560), 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 10:42:12,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:12,503 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] [2023-11-26 10:42:12,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:42:12,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:42:12,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:12,505 INFO L85 PathProgramCache]: Analyzing trace with hash 959048354, now seen corresponding path program 1 times [2023-11-26 10:42:12,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:12,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697448654] [2023-11-26 10:42:12,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:12,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:12,623 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 10:42:12,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:12,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697448654] [2023-11-26 10:42:12,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697448654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:12,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:12,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:12,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139285632] [2023-11-26 10:42:12,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:12,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:12,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:12,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:12,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:12,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 329 [2023-11-26 10:42:12,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 278 transitions, 578 flow. Second operand has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 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 10:42:12,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:12,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 329 [2023-11-26 10:42:12,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:14,581 INFO L124 PetriNetUnfolderBase]: 1135/6573 cut-off events. [2023-11-26 10:42:14,582 INFO L125 PetriNetUnfolderBase]: For 643/643 co-relation queries the response was YES. [2023-11-26 10:42:14,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8183 conditions, 6573 events. 1135/6573 cut-off events. For 643/643 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 69293 event pairs, 690 based on Foata normal form. 40/5627 useless extension candidates. Maximal degree in co-relation 8176. Up to 1091 conditions per place. [2023-11-26 10:42:14,753 INFO L140 encePairwiseOnDemand]: 326/329 looper letters, 27 selfloop transitions, 2 changer transitions 0/288 dead transitions. [2023-11-26 10:42:14,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 288 transitions, 671 flow [2023-11-26 10:42:14,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:14,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:42:14,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 846 transitions. [2023-11-26 10:42:14,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2023-11-26 10:42:14,758 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 846 transitions. [2023-11-26 10:42:14,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 846 transitions. [2023-11-26 10:42:14,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:14,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 846 transitions. [2023-11-26 10:42:14,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 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 10:42:14,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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 10:42:14,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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 10:42:14,769 INFO L175 Difference]: Start difference. First operand has 272 places, 278 transitions, 578 flow. Second operand 3 states and 846 transitions. [2023-11-26 10:42:14,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 288 transitions, 671 flow [2023-11-26 10:42:14,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 288 transitions, 671 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:42:14,780 INFO L231 Difference]: Finished difference. Result has 275 places, 279 transitions, 590 flow [2023-11-26 10:42:14,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=590, PETRI_PLACES=275, PETRI_TRANSITIONS=279} [2023-11-26 10:42:14,782 INFO L281 CegarLoopForPetriNet]: 305 programPoint places, -30 predicate places. [2023-11-26 10:42:14,782 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 279 transitions, 590 flow [2023-11-26 10:42:14,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 274.3333333333333) internal successors, (823), 3 states have internal predecessors, (823), 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 10:42:14,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:14,784 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] [2023-11-26 10:42:14,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:42:14,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:42:14,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:14,785 INFO L85 PathProgramCache]: Analyzing trace with hash -86013276, now seen corresponding path program 1 times [2023-11-26 10:42:14,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:14,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774246610] [2023-11-26 10:42:14,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:14,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:15,552 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 10:42:15,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:15,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774246610] [2023-11-26 10:42:15,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774246610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:15,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:15,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:42:15,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871292159] [2023-11-26 10:42:15,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:15,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:42:15,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:15,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:42:15,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:42:15,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 329 [2023-11-26 10:42:15,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 279 transitions, 590 flow. Second operand has 6 states, 6 states have (on average 268.6666666666667) internal successors, (1612), 6 states have internal predecessors, (1612), 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 10:42:15,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:15,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 329 [2023-11-26 10:42:15,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:18,828 INFO L124 PetriNetUnfolderBase]: 1956/9987 cut-off events. [2023-11-26 10:42:18,829 INFO L125 PetriNetUnfolderBase]: For 1335/1335 co-relation queries the response was YES. [2023-11-26 10:42:18,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13041 conditions, 9987 events. 1956/9987 cut-off events. For 1335/1335 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 111990 event pairs, 609 based on Foata normal form. 0/8669 useless extension candidates. Maximal degree in co-relation 13032. Up to 971 conditions per place. [2023-11-26 10:42:19,070 INFO L140 encePairwiseOnDemand]: 323/329 looper letters, 54 selfloop transitions, 6 changer transitions 0/314 dead transitions. [2023-11-26 10:42:19,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 314 transitions, 840 flow [2023-11-26 10:42:19,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:42:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:42:19,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1662 transitions. [2023-11-26 10:42:19,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8419452887537994 [2023-11-26 10:42:19,077 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1662 transitions. [2023-11-26 10:42:19,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1662 transitions. [2023-11-26 10:42:19,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:19,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1662 transitions. [2023-11-26 10:42:19,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 277.0) internal successors, (1662), 6 states have internal predecessors, (1662), 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 10:42:19,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 329.0) internal successors, (2303), 7 states have internal predecessors, (2303), 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 10:42:19,093 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 329.0) internal successors, (2303), 7 states have internal predecessors, (2303), 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 10:42:19,094 INFO L175 Difference]: Start difference. First operand has 275 places, 279 transitions, 590 flow. Second operand 6 states and 1662 transitions. [2023-11-26 10:42:19,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 314 transitions, 840 flow [2023-11-26 10:42:19,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 314 transitions, 838 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:42:19,104 INFO L231 Difference]: Finished difference. Result has 278 places, 278 transitions, 598 flow [2023-11-26 10:42:19,105 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=598, PETRI_PLACES=278, PETRI_TRANSITIONS=278} [2023-11-26 10:42:19,106 INFO L281 CegarLoopForPetriNet]: 305 programPoint places, -27 predicate places. [2023-11-26 10:42:19,106 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 278 transitions, 598 flow [2023-11-26 10:42:19,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 268.6666666666667) internal successors, (1612), 6 states have internal predecessors, (1612), 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 10:42:19,108 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:19,108 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 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 10:42:19,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:42:19,109 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:42:19,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:19,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1517497262, now seen corresponding path program 1 times [2023-11-26 10:42:19,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:19,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609815675] [2023-11-26 10:42:19,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:19,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:19,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:19,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:19,157 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:42:19,158 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2023-11-26 10:42:19,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2023-11-26 10:42:19,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2023-11-26 10:42:19,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2023-11-26 10:42:19,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2023-11-26 10:42:19,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2023-11-26 10:42:19,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining) [2023-11-26 10:42:19,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2023-11-26 10:42:19,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2023-11-26 10:42:19,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2023-11-26 10:42:19,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2023-11-26 10:42:19,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2023-11-26 10:42:19,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2023-11-26 10:42:19,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2023-11-26 10:42:19,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2023-11-26 10:42:19,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2023-11-26 10:42:19,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2023-11-26 10:42:19,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2023-11-26 10:42:19,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2023-11-26 10:42:19,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2023-11-26 10:42:19,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2023-11-26 10:42:19,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2023-11-26 10:42:19,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2023-11-26 10:42:19,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2023-11-26 10:42:19,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2023-11-26 10:42:19,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2023-11-26 10:42:19,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2023-11-26 10:42:19,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2023-11-26 10:42:19,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2023-11-26 10:42:19,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2023-11-26 10:42:19,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2023-11-26 10:42:19,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2023-11-26 10:42:19,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2023-11-26 10:42:19,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2023-11-26 10:42:19,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2023-11-26 10:42:19,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2023-11-26 10:42:19,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2023-11-26 10:42:19,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2023-11-26 10:42:19,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2023-11-26 10:42:19,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2023-11-26 10:42:19,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2023-11-26 10:42:19,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:42:19,167 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 10:42:19,168 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 10:42:19,168 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-11-26 10:42:19,261 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:42:19,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 403 transitions, 846 flow [2023-11-26 10:42:19,546 INFO L124 PetriNetUnfolderBase]: 46/466 cut-off events. [2023-11-26 10:42:19,546 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-26 10:42:19,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 466 events. 46/466 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1911 event pairs, 0 based on Foata normal form. 0/374 useless extension candidates. Maximal degree in co-relation 392. Up to 12 conditions per place. [2023-11-26 10:42:19,561 INFO L82 GeneralOperation]: Start removeDead. Operand has 373 places, 403 transitions, 846 flow [2023-11-26 10:42:19,570 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 373 places, 403 transitions, 846 flow [2023-11-26 10:42:19,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:19,572 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;@20b6dc6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:19,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-26 10:42:19,584 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:42:19,584 INFO L124 PetriNetUnfolderBase]: 7/111 cut-off events. [2023-11-26 10:42:19,584 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 10:42:19,585 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:19,585 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:19,585 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:42:19,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:19,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1027511815, now seen corresponding path program 1 times [2023-11-26 10:42:19,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:19,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729342515] [2023-11-26 10:42:19,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:19,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:19,619 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 10:42:19,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:19,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729342515] [2023-11-26 10:42:19,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729342515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:19,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:19,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:42:19,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691913406] [2023-11-26 10:42:19,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:19,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:42:19,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:19,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:42:19,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:19,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 403 [2023-11-26 10:42:19,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 403 transitions, 846 flow. Second operand has 2 states, 2 states have (on average 342.0) internal successors, (684), 2 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:19,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:19,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 403 [2023-11-26 10:42:19,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:22,652 INFO L124 PetriNetUnfolderBase]: 1336/9305 cut-off events. [2023-11-26 10:42:22,652 INFO L125 PetriNetUnfolderBase]: For 2359/2359 co-relation queries the response was YES. [2023-11-26 10:42:22,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11195 conditions, 9305 events. 1336/9305 cut-off events. For 2359/2359 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 105027 event pairs, 852 based on Foata normal form. 2459/10501 useless extension candidates. Maximal degree in co-relation 3543. Up to 1216 conditions per place. [2023-11-26 10:42:22,983 INFO L140 encePairwiseOnDemand]: 361/403 looper letters, 15 selfloop transitions, 0 changer transitions 0/341 dead transitions. [2023-11-26 10:42:22,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 341 transitions, 752 flow [2023-11-26 10:42:22,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:42:22,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 10:42:22,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 739 transitions. [2023-11-26 10:42:22,987 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9168734491315137 [2023-11-26 10:42:22,987 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 739 transitions. [2023-11-26 10:42:22,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 739 transitions. [2023-11-26 10:42:22,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:22,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 739 transitions. [2023-11-26 10:42:22,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 369.5) internal successors, (739), 2 states have internal predecessors, (739), 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 10:42:22,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 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 10:42:22,995 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 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 10:42:22,995 INFO L175 Difference]: Start difference. First operand has 373 places, 403 transitions, 846 flow. Second operand 2 states and 739 transitions. [2023-11-26 10:42:22,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 341 transitions, 752 flow [2023-11-26 10:42:23,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 341 transitions, 740 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-11-26 10:42:23,011 INFO L231 Difference]: Finished difference. Result has 333 places, 341 transitions, 710 flow [2023-11-26 10:42:23,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=710, PETRI_PLACES=333, PETRI_TRANSITIONS=341} [2023-11-26 10:42:23,015 INFO L281 CegarLoopForPetriNet]: 373 programPoint places, -40 predicate places. [2023-11-26 10:42:23,016 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 341 transitions, 710 flow [2023-11-26 10:42:23,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 342.0) internal successors, (684), 2 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:23,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:23,017 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] [2023-11-26 10:42:23,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:42:23,017 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:42:23,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:23,018 INFO L85 PathProgramCache]: Analyzing trace with hash -403570581, now seen corresponding path program 1 times [2023-11-26 10:42:23,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:23,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166952101] [2023-11-26 10:42:23,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:23,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:23,081 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 10:42:23,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:23,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166952101] [2023-11-26 10:42:23,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166952101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:23,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:23,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:23,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149344927] [2023-11-26 10:42:23,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:23,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:23,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:23,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:23,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:23,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 403 [2023-11-26 10:42:23,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 341 transitions, 710 flow. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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 10:42:23,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:23,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 403 [2023-11-26 10:42:23,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:28,790 INFO L124 PetriNetUnfolderBase]: 4345/23151 cut-off events. [2023-11-26 10:42:28,790 INFO L125 PetriNetUnfolderBase]: For 2701/2701 co-relation queries the response was YES. [2023-11-26 10:42:29,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28812 conditions, 23151 events. 4345/23151 cut-off events. For 2701/2701 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 303684 event pairs, 2796 based on Foata normal form. 121/19886 useless extension candidates. Maximal degree in co-relation 28804. Up to 4007 conditions per place. [2023-11-26 10:42:29,436 INFO L140 encePairwiseOnDemand]: 400/403 looper letters, 33 selfloop transitions, 2 changer transitions 0/354 dead transitions. [2023-11-26 10:42:29,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 354 transitions, 826 flow [2023-11-26 10:42:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:29,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:42:29,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1038 transitions. [2023-11-26 10:42:29,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.858560794044665 [2023-11-26 10:42:29,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1038 transitions. [2023-11-26 10:42:29,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1038 transitions. [2023-11-26 10:42:29,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:29,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1038 transitions. [2023-11-26 10:42:29,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 346.0) internal successors, (1038), 3 states have internal predecessors, (1038), 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 10:42:29,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 403.0) internal successors, (1612), 4 states have internal predecessors, (1612), 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 10:42:29,452 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 403.0) internal successors, (1612), 4 states have internal predecessors, (1612), 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 10:42:29,452 INFO L175 Difference]: Start difference. First operand has 333 places, 341 transitions, 710 flow. Second operand 3 states and 1038 transitions. [2023-11-26 10:42:29,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 354 transitions, 826 flow [2023-11-26 10:42:29,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 354 transitions, 826 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:42:29,474 INFO L231 Difference]: Finished difference. Result has 336 places, 342 transitions, 722 flow [2023-11-26 10:42:29,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=336, PETRI_TRANSITIONS=342} [2023-11-26 10:42:29,477 INFO L281 CegarLoopForPetriNet]: 373 programPoint places, -37 predicate places. [2023-11-26 10:42:29,478 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 342 transitions, 722 flow [2023-11-26 10:42:29,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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 10:42:29,480 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:29,480 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] [2023-11-26 10:42:29,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:42:29,480 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:42:29,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:29,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2130463675, now seen corresponding path program 1 times [2023-11-26 10:42:29,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:29,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448011530] [2023-11-26 10:42:29,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:29,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:29,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:29,837 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 10:42:29,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:29,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448011530] [2023-11-26 10:42:29,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448011530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:29,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:29,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:42:29,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053391075] [2023-11-26 10:42:29,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:29,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:42:29,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:29,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:42:29,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:42:30,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 403 [2023-11-26 10:42:30,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 342 transitions, 722 flow. Second operand has 6 states, 6 states have (on average 330.6666666666667) internal successors, (1984), 6 states have internal predecessors, (1984), 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 10:42:30,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:30,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 403 [2023-11-26 10:42:30,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:38,309 INFO L124 PetriNetUnfolderBase]: 7356/31839 cut-off events. [2023-11-26 10:42:38,309 INFO L125 PetriNetUnfolderBase]: For 4926/4926 co-relation queries the response was YES. [2023-11-26 10:42:38,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42508 conditions, 31839 events. 7356/31839 cut-off events. For 4926/4926 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 423262 event pairs, 2472 based on Foata normal form. 0/27782 useless extension candidates. Maximal degree in co-relation 42498. Up to 3563 conditions per place. [2023-11-26 10:42:39,272 INFO L140 encePairwiseOnDemand]: 397/403 looper letters, 69 selfloop transitions, 6 changer transitions 0/389 dead transitions. [2023-11-26 10:42:39,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 389 transitions, 1046 flow [2023-11-26 10:42:39,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:42:39,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:42:39,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2049 transitions. [2023-11-26 10:42:39,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.847394540942928 [2023-11-26 10:42:39,286 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2049 transitions. [2023-11-26 10:42:39,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2049 transitions. [2023-11-26 10:42:39,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:39,291 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2049 transitions. [2023-11-26 10:42:39,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 341.5) internal successors, (2049), 6 states have internal predecessors, (2049), 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 10:42:39,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 403.0) internal successors, (2821), 7 states have internal predecessors, (2821), 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 10:42:39,313 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 403.0) internal successors, (2821), 7 states have internal predecessors, (2821), 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 10:42:39,313 INFO L175 Difference]: Start difference. First operand has 336 places, 342 transitions, 722 flow. Second operand 6 states and 2049 transitions. [2023-11-26 10:42:39,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 389 transitions, 1046 flow [2023-11-26 10:42:39,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 389 transitions, 1044 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:42:39,329 INFO L231 Difference]: Finished difference. Result has 339 places, 341 transitions, 730 flow [2023-11-26 10:42:39,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=339, PETRI_TRANSITIONS=341} [2023-11-26 10:42:39,330 INFO L281 CegarLoopForPetriNet]: 373 programPoint places, -34 predicate places. [2023-11-26 10:42:39,330 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 341 transitions, 730 flow [2023-11-26 10:42:39,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 330.6666666666667) internal successors, (1984), 6 states have internal predecessors, (1984), 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 10:42:39,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:39,332 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:42:39,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:42:39,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:42:39,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:39,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1290367185, now seen corresponding path program 1 times [2023-11-26 10:42:39,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:39,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796989618] [2023-11-26 10:42:39,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:39,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:39,383 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 10:42:39,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:39,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796989618] [2023-11-26 10:42:39,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796989618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:39,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:39,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:39,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586804080] [2023-11-26 10:42:39,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:39,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:39,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:39,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:39,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:39,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 403 [2023-11-26 10:42:39,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 341 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 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 10:42:39,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:39,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 403 [2023-11-26 10:42:39,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:44,589 INFO L124 PetriNetUnfolderBase]: 4209/20561 cut-off events. [2023-11-26 10:42:44,590 INFO L125 PetriNetUnfolderBase]: For 2442/2442 co-relation queries the response was YES. [2023-11-26 10:42:44,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26202 conditions, 20561 events. 4209/20561 cut-off events. For 2442/2442 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 260813 event pairs, 2790 based on Foata normal form. 120/17702 useless extension candidates. Maximal degree in co-relation 26192. Up to 3994 conditions per place. [2023-11-26 10:42:45,210 INFO L140 encePairwiseOnDemand]: 400/403 looper letters, 32 selfloop transitions, 2 changer transitions 0/353 dead transitions. [2023-11-26 10:42:45,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 353 transitions, 837 flow [2023-11-26 10:42:45,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:45,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:42:45,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1037 transitions. [2023-11-26 10:42:45,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8577336641852771 [2023-11-26 10:42:45,216 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1037 transitions. [2023-11-26 10:42:45,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1037 transitions. [2023-11-26 10:42:45,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:45,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1037 transitions. [2023-11-26 10:42:45,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 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 10:42:45,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 403.0) internal successors, (1612), 4 states have internal predecessors, (1612), 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 10:42:45,225 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 403.0) internal successors, (1612), 4 states have internal predecessors, (1612), 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 10:42:45,225 INFO L175 Difference]: Start difference. First operand has 339 places, 341 transitions, 730 flow. Second operand 3 states and 1037 transitions. [2023-11-26 10:42:45,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 353 transitions, 837 flow [2023-11-26 10:42:45,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 353 transitions, 825 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:42:45,238 INFO L231 Difference]: Finished difference. Result has 337 places, 342 transitions, 730 flow [2023-11-26 10:42:45,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=730, PETRI_PLACES=337, PETRI_TRANSITIONS=342} [2023-11-26 10:42:45,241 INFO L281 CegarLoopForPetriNet]: 373 programPoint places, -36 predicate places. [2023-11-26 10:42:45,241 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 342 transitions, 730 flow [2023-11-26 10:42:45,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 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 10:42:45,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:45,244 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:42:45,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:42:45,244 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:42:45,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:45,245 INFO L85 PathProgramCache]: Analyzing trace with hash 398690038, now seen corresponding path program 1 times [2023-11-26 10:42:45,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:45,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709304881] [2023-11-26 10:42:45,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:45,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:45,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 10:42:45,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:45,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709304881] [2023-11-26 10:42:45,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709304881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:45,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:45,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:42:45,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092057721] [2023-11-26 10:42:45,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:45,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:42:45,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:45,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:42:45,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:42:46,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 403 [2023-11-26 10:42:46,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 342 transitions, 730 flow. Second operand has 6 states, 6 states have (on average 330.8333333333333) internal successors, (1985), 6 states have internal predecessors, (1985), 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 10:42:46,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:46,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 403 [2023-11-26 10:42:46,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:53,965 INFO L124 PetriNetUnfolderBase]: 7144/30588 cut-off events. [2023-11-26 10:42:53,966 INFO L125 PetriNetUnfolderBase]: For 4516/4516 co-relation queries the response was YES. [2023-11-26 10:42:54,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41183 conditions, 30588 events. 7144/30588 cut-off events. For 4516/4516 co-relation queries the response was YES. Maximal size of possible extension queue 873. Compared 409706 event pairs, 2307 based on Foata normal form. 0/26512 useless extension candidates. Maximal degree in co-relation 41172. Up to 3552 conditions per place. [2023-11-26 10:42:54,933 INFO L140 encePairwiseOnDemand]: 397/403 looper letters, 65 selfloop transitions, 6 changer transitions 0/385 dead transitions. [2023-11-26 10:42:54,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 385 transitions, 1018 flow [2023-11-26 10:42:54,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:42:54,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:42:54,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2045 transitions. [2023-11-26 10:42:54,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8457402812241522 [2023-11-26 10:42:54,941 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2045 transitions. [2023-11-26 10:42:54,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2045 transitions. [2023-11-26 10:42:54,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:54,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2045 transitions. [2023-11-26 10:42:54,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 340.8333333333333) internal successors, (2045), 6 states have internal predecessors, (2045), 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 10:42:54,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 403.0) internal successors, (2821), 7 states have internal predecessors, (2821), 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 10:42:54,960 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 403.0) internal successors, (2821), 7 states have internal predecessors, (2821), 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 10:42:54,961 INFO L175 Difference]: Start difference. First operand has 337 places, 342 transitions, 730 flow. Second operand 6 states and 2045 transitions. [2023-11-26 10:42:54,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 385 transitions, 1018 flow [2023-11-26 10:42:54,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 385 transitions, 1016 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:42:54,979 INFO L231 Difference]: Finished difference. Result has 340 places, 341 transitions, 738 flow [2023-11-26 10:42:54,981 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=738, PETRI_PLACES=340, PETRI_TRANSITIONS=341} [2023-11-26 10:42:54,981 INFO L281 CegarLoopForPetriNet]: 373 programPoint places, -33 predicate places. [2023-11-26 10:42:54,982 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 341 transitions, 738 flow [2023-11-26 10:42:54,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 330.8333333333333) internal successors, (1985), 6 states have internal predecessors, (1985), 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 10:42:54,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:54,983 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 5, 5, 1, 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 10:42:54,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 10:42:54,984 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-26 10:42:54,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:54,984 INFO L85 PathProgramCache]: Analyzing trace with hash -2062070788, now seen corresponding path program 1 times [2023-11-26 10:42:54,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:54,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663094550] [2023-11-26 10:42:54,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:54,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:55,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:42:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:42:55,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:42:55,043 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:42:55,044 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-11-26 10:42:55,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-11-26 10:42:55,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-11-26 10:42:55,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-11-26 10:42:55,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-11-26 10:42:55,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-11-26 10:42:55,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-11-26 10:42:55,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-11-26 10:42:55,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-11-26 10:42:55,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-11-26 10:42:55,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-11-26 10:42:55,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-11-26 10:42:55,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-11-26 10:42:55,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-11-26 10:42:55,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-11-26 10:42:55,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-11-26 10:42:55,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2023-11-26 10:42:55,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-11-26 10:42:55,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-11-26 10:42:55,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-11-26 10:42:55,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-11-26 10:42:55,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-11-26 10:42:55,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-11-26 10:42:55,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-11-26 10:42:55,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-11-26 10:42:55,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-11-26 10:42:55,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-11-26 10:42:55,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-11-26 10:42:55,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-11-26 10:42:55,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-11-26 10:42:55,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-11-26 10:42:55,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-11-26 10:42:55,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2023-11-26 10:42:55,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-11-26 10:42:55,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-11-26 10:42:55,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-11-26 10:42:55,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-11-26 10:42:55,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-11-26 10:42:55,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-11-26 10:42:55,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-11-26 10:42:55,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-11-26 10:42:55,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-11-26 10:42:55,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-11-26 10:42:55,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-11-26 10:42:55,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-11-26 10:42:55,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-11-26 10:42:55,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-11-26 10:42:55,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-11-26 10:42:55,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2023-11-26 10:42:55,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 10:42:55,052 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-26 10:42:55,053 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-26 10:42:55,053 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-11-26 10:42:55,469 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:42:55,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 477 transitions, 1008 flow [2023-11-26 10:42:55,631 INFO L124 PetriNetUnfolderBase]: 55/553 cut-off events. [2023-11-26 10:42:55,632 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2023-11-26 10:42:55,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 587 conditions, 553 events. 55/553 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2416 event pairs, 0 based on Foata normal form. 0/443 useless extension candidates. Maximal degree in co-relation 485. Up to 14 conditions per place. [2023-11-26 10:42:55,651 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 477 transitions, 1008 flow [2023-11-26 10:42:55,665 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 441 places, 477 transitions, 1008 flow [2023-11-26 10:42:55,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:55,667 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;@20b6dc6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:55,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2023-11-26 10:42:55,681 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:42:55,681 INFO L124 PetriNetUnfolderBase]: 7/115 cut-off events. [2023-11-26 10:42:55,681 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-26 10:42:55,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:55,682 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:55,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2023-11-26 10:42:55,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:55,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1995710576, now seen corresponding path program 1 times [2023-11-26 10:42:55,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:55,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863984612] [2023-11-26 10:42:55,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:55,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:55,711 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 10:42:55,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:55,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863984612] [2023-11-26 10:42:55,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863984612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:55,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:55,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 10:42:55,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829249395] [2023-11-26 10:42:55,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:55,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:42:55,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:55,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:42:55,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:42:55,716 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 477 [2023-11-26 10:42:55,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 477 transitions, 1008 flow. Second operand has 2 states, 2 states have (on average 404.0) internal successors, (808), 2 states have internal predecessors, (808), 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 10:42:55,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:55,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 477 [2023-11-26 10:42:55,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand