./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:44:18,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:44:18,715 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-12 00:44:18,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:44:18,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:44:18,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:44:18,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:44:18,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:44:18,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:44:18,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:44:18,772 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:44:18,774 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:44:18,774 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:44:18,776 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:44:18,776 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:44:18,777 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:44:18,777 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:44:18,778 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:44:18,778 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:44:18,779 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:44:18,779 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:44:18,780 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:44:18,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:44:18,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:44:18,782 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:44:18,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:44:18,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:44:18,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:44:18,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:44:18,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:44:18,785 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:44:18,785 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 00:44:18,786 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:44:18,786 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:44:18,786 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:44:18,786 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:44:18,787 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:44:18,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:44:18,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:18,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:44:18,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:44:18,788 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:44:18,788 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:44:18,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:44:18,789 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:44:18,789 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:44:18,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:44:18,790 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2023-11-12 00:44:19,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:44:19,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:44:19,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:44:19,162 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:44:19,162 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:44:19,163 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-11-12 00:44:22,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:44:22,550 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:44:22,551 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-11-12 00:44:22,566 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/data/3778ef94a/6312a1d728854fec973c12b6292a9df6/FLAGde964d8c6 [2023-11-12 00:44:22,579 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/data/3778ef94a/6312a1d728854fec973c12b6292a9df6 [2023-11-12 00:44:22,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:44:22,583 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:44:22,585 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:22,585 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:44:22,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:44:22,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:22" (1/1) ... [2023-11-12 00:44:22,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29142ba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:22, skipping insertion in model container [2023-11-12 00:44:22,593 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:22" (1/1) ... [2023-11-12 00:44:22,648 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:44:22,819 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:44:23,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:23,074 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:44:23,108 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:44:23,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:23,208 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:44:23,208 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:44:23,208 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:44:23,216 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:44:23,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23 WrapperNode [2023-11-12 00:44:23,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:23,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:23,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:44:23,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:44:23,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (1/1) ... [2023-11-12 00:44:23,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (1/1) ... [2023-11-12 00:44:23,287 INFO L138 Inliner]: procedures = 173, calls = 25, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 194 [2023-11-12 00:44:23,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:23,290 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:44:23,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:44:23,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:44:23,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (1/1) ... [2023-11-12 00:44:23,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (1/1) ... [2023-11-12 00:44:23,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (1/1) ... [2023-11-12 00:44:23,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (1/1) ... [2023-11-12 00:44:23,316 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (1/1) ... [2023-11-12 00:44:23,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (1/1) ... [2023-11-12 00:44:23,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (1/1) ... [2023-11-12 00:44:23,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (1/1) ... [2023-11-12 00:44:23,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:44:23,329 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:44:23,330 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:44:23,330 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:44:23,331 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (1/1) ... [2023-11-12 00:44:23,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:23,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:44:23,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:44:23,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40f38789-4b2a-4e9e-93af-cca8a8236ca6/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:44:23,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:44:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-12 00:44:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-12 00:44:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:44:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:44:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:44:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:44:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:44:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:44:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:44:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:44:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:44:23,434 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:44:23,572 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:44:23,575 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:44:24,022 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:44:24,247 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:44:24,247 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 00:44:24,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:24 BoogieIcfgContainer [2023-11-12 00:44:24,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:44:24,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:44:24,252 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:44:24,256 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:44:24,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:44:22" (1/3) ... [2023-11-12 00:44:24,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba008d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:24, skipping insertion in model container [2023-11-12 00:44:24,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:23" (2/3) ... [2023-11-12 00:44:24,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba008d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:24, skipping insertion in model container [2023-11-12 00:44:24,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:24" (3/3) ... [2023-11-12 00:44:24,259 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs.i [2023-11-12 00:44:24,272 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:44:24,283 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:44:24,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-12 00:44:24,284 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:44:24,368 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:44:24,414 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:44:24,452 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 124 transitions, 252 flow [2023-11-12 00:44:24,455 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 124 transitions, 252 flow [2023-11-12 00:44:24,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 124 transitions, 252 flow [2023-11-12 00:44:24,554 INFO L124 PetriNetUnfolderBase]: 11/189 cut-off events. [2023-11-12 00:44:24,555 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:44:24,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 189 events. 11/189 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 550 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 110. Up to 4 conditions per place. [2023-11-12 00:44:24,573 INFO L119 LiptonReduction]: Number of co-enabled transitions 5848 [2023-11-12 00:44:36,513 INFO L134 LiptonReduction]: Checked pairs total: 26520 [2023-11-12 00:44:36,514 INFO L136 LiptonReduction]: Total number of compositions: 126 [2023-11-12 00:44:36,523 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 62 transitions, 128 flow [2023-11-12 00:44:36,608 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 858 states, 662 states have (on average 2.6419939577039275) internal successors, (1749), 857 states have internal predecessors, (1749), 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) [2023-11-12 00:44:36,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:44:36,634 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=FINITE_AUTOMATA, 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;@8254a20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:44:36,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-11-12 00:44:36,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 858 states, 662 states have (on average 2.6419939577039275) internal successors, (1749), 857 states have internal predecessors, (1749), 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) [2023-11-12 00:44:36,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-12 00:44:36,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:36,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-12 00:44:36,645 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-12 00:44:36,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:36,651 INFO L85 PathProgramCache]: Analyzing trace with hash 22530, now seen corresponding path program 1 times [2023-11-12 00:44:36,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:36,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42762900] [2023-11-12 00:44:36,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:36,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:36,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:44:36,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:44:36,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42762900] [2023-11-12 00:44:36,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42762900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:36,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:36,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:44:36,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793289074] [2023-11-12 00:44:36,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:36,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:44:36,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:44:36,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:44:36,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:44:36,989 INFO L87 Difference]: Start difference. First operand has 858 states, 662 states have (on average 2.6419939577039275) internal successors, (1749), 857 states have internal predecessors, (1749), 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) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-12 00:44:37,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:44:37,099 INFO L93 Difference]: Finished difference Result 408 states and 799 transitions. [2023-11-12 00:44:37,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:44:37,101 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2023-11-12 00:44:37,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:44:37,118 INFO L225 Difference]: With dead ends: 408 [2023-11-12 00:44:37,118 INFO L226 Difference]: Without dead ends: 401 [2023-11-12 00:44:37,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:44:37,123 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:44:37,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:44:37,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-12 00:44:37,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2023-11-12 00:44:37,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 379 states have (on average 2.073878627968338) internal successors, (786), 400 states have internal predecessors, (786), 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) [2023-11-12 00:44:37,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 786 transitions. [2023-11-12 00:44:37,221 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 786 transitions. Word has length 2 [2023-11-12 00:44:37,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:44:37,221 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 786 transitions. [2023-11-12 00:44:37,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-12 00:44:37,222 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 786 transitions. [2023-11-12 00:44:37,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:44:37,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:37,223 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-12 00:44:37,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:44:37,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-12 00:44:37,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:37,224 INFO L85 PathProgramCache]: Analyzing trace with hash -651898752, now seen corresponding path program 1 times [2023-11-12 00:44:37,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:37,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750834218] [2023-11-12 00:44:37,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:37,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:44:37,249 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:44:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:44:37,283 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:44:37,283 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:44:37,285 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2023-11-12 00:44:37,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-11-12 00:44:37,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-11-12 00:44:37,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-11-12 00:44:37,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-11-12 00:44:37,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-11-12 00:44:37,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-11-12 00:44:37,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-11-12 00:44:37,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-11-12 00:44:37,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-11-12 00:44:37,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-11-12 00:44:37,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-11-12 00:44:37,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-11-12 00:44:37,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-11-12 00:44:37,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-11-12 00:44:37,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-11-12 00:44:37,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-11-12 00:44:37,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-11-12 00:44:37,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-11-12 00:44:37,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-11-12 00:44:37,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-11-12 00:44:37,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2023-11-12 00:44:37,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-11-12 00:44:37,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-11-12 00:44:37,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-11-12 00:44:37,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-11-12 00:44:37,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-11-12 00:44:37,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-11-12 00:44:37,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-11-12 00:44:37,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-11-12 00:44:37,294 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-11-12 00:44:37,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-11-12 00:44:37,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-11-12 00:44:37,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-11-12 00:44:37,295 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-11-12 00:44:37,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-11-12 00:44:37,296 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-11-12 00:44:37,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:44:37,299 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 00:44:37,302 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 00:44:37,302 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 00:44:37,359 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:44:37,370 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:44:37,370 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 168 transitions, 346 flow [2023-11-12 00:44:37,371 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 168 transitions, 346 flow [2023-11-12 00:44:37,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 168 transitions, 346 flow [2023-11-12 00:44:37,485 INFO L124 PetriNetUnfolderBase]: 18/300 cut-off events. [2023-11-12 00:44:37,485 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 00:44:37,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 300 events. 18/300 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1145 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 190. Up to 6 conditions per place. [2023-11-12 00:44:37,512 INFO L119 LiptonReduction]: Number of co-enabled transitions 15480 [2023-11-12 00:44:54,862 INFO L134 LiptonReduction]: Checked pairs total: 77299 [2023-11-12 00:44:54,862 INFO L136 LiptonReduction]: Total number of compositions: 168 [2023-11-12 00:44:54,864 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 92 transitions, 194 flow [2023-11-12 00:44:55,926 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 24174 states, 21623 states have (on average 3.430652545900199) internal successors, (74181), 24173 states have internal predecessors, (74181), 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) [2023-11-12 00:44:55,927 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:44:55,929 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=FINITE_AUTOMATA, 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;@8254a20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:44:55,929 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-12 00:44:55,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 24174 states, 21623 states have (on average 3.430652545900199) internal successors, (74181), 24173 states have internal predecessors, (74181), 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) [2023-11-12 00:44:55,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-12 00:44:55,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:55,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-12 00:44:55,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-12 00:44:55,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:55,970 INFO L85 PathProgramCache]: Analyzing trace with hash 34339, now seen corresponding path program 1 times [2023-11-12 00:44:55,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:55,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212141046] [2023-11-12 00:44:55,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:55,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:56,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:44:56,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:44:56,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212141046] [2023-11-12 00:44:56,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212141046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:56,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:56,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:44:56,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802560935] [2023-11-12 00:44:56,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:56,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:44:56,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:44:56,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:44:56,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:44:56,096 INFO L87 Difference]: Start difference. First operand has 24174 states, 21623 states have (on average 3.430652545900199) internal successors, (74181), 24173 states have internal predecessors, (74181), 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) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-12 00:44:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:44:56,409 INFO L93 Difference]: Finished difference Result 7848 states and 23137 transitions. [2023-11-12 00:44:56,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:44:56,410 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2023-11-12 00:44:56,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:44:56,572 INFO L225 Difference]: With dead ends: 7848 [2023-11-12 00:44:56,572 INFO L226 Difference]: Without dead ends: 7817 [2023-11-12 00:44:56,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:44:56,580 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:44:56,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:44:56,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7817 states. [2023-11-12 00:44:57,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7817 to 7817. [2023-11-12 00:44:57,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7817 states, 7720 states have (on average 2.9860103626943006) internal successors, (23052), 7816 states have internal predecessors, (23052), 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) [2023-11-12 00:44:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7817 states to 7817 states and 23052 transitions. [2023-11-12 00:44:57,235 INFO L78 Accepts]: Start accepts. Automaton has 7817 states and 23052 transitions. Word has length 2 [2023-11-12 00:44:57,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:44:57,235 INFO L495 AbstractCegarLoop]: Abstraction has 7817 states and 23052 transitions. [2023-11-12 00:44:57,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-12 00:44:57,236 INFO L276 IsEmpty]: Start isEmpty. Operand 7817 states and 23052 transitions. [2023-11-12 00:44:57,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:44:57,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:57,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:44:57,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:44:57,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-12 00:44:57,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:57,242 INFO L85 PathProgramCache]: Analyzing trace with hash 438174027, now seen corresponding path program 1 times [2023-11-12 00:44:57,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:57,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980039370] [2023-11-12 00:44:57,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:57,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:44:57,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:44:57,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980039370] [2023-11-12 00:44:57,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980039370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:57,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:57,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:44:57,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629946153] [2023-11-12 00:44:57,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:57,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:44:57,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:44:57,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:44:57,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:44:57,414 INFO L87 Difference]: Start difference. First operand 7817 states and 23052 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-12 00:44:57,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:44:57,822 INFO L93 Difference]: Finished difference Result 8410 states and 24779 transitions. [2023-11-12 00:44:57,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:44:57,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2023-11-12 00:44:57,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:44:57,976 INFO L225 Difference]: With dead ends: 8410 [2023-11-12 00:44:57,977 INFO L226 Difference]: Without dead ends: 8410 [2023-11-12 00:44:57,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:44:57,979 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 31 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:44:57,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 45 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:44:58,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8410 states. [2023-11-12 00:44:58,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8410 to 8098. [2023-11-12 00:44:58,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8098 states, 8002 states have (on average 2.982629342664334) internal successors, (23867), 8097 states have internal predecessors, (23867), 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) [2023-11-12 00:44:58,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8098 states to 8098 states and 23867 transitions. [2023-11-12 00:44:58,628 INFO L78 Accepts]: Start accepts. Automaton has 8098 states and 23867 transitions. Word has length 7 [2023-11-12 00:44:58,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:44:58,629 INFO L495 AbstractCegarLoop]: Abstraction has 8098 states and 23867 transitions. [2023-11-12 00:44:58,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-12 00:44:58,630 INFO L276 IsEmpty]: Start isEmpty. Operand 8098 states and 23867 transitions. [2023-11-12 00:44:58,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:44:58,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:58,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:44:58,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:44:58,632 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-12 00:44:58,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:58,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1417708829, now seen corresponding path program 1 times [2023-11-12 00:44:58,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:58,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173880958] [2023-11-12 00:44:58,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:58,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:44:58,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:44:58,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173880958] [2023-11-12 00:44:58,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173880958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:58,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:58,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:44:58,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951333494] [2023-11-12 00:44:58,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:58,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:44:58,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:44:58,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:44:58,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:44:58,783 INFO L87 Difference]: Start difference. First operand 8098 states and 23867 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-12 00:44:59,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:44:59,109 INFO L93 Difference]: Finished difference Result 8794 states and 25888 transitions. [2023-11-12 00:44:59,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:44:59,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2023-11-12 00:44:59,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:44:59,194 INFO L225 Difference]: With dead ends: 8794 [2023-11-12 00:44:59,194 INFO L226 Difference]: Without dead ends: 8794 [2023-11-12 00:44:59,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:44:59,202 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 37 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:44:59,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 47 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:44:59,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8794 states. [2023-11-12 00:44:59,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8794 to 8404. [2023-11-12 00:44:59,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8404 states, 8309 states have (on average 2.9784570947165725) internal successors, (24748), 8403 states have internal predecessors, (24748), 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) [2023-11-12 00:44:59,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8404 states to 8404 states and 24748 transitions. [2023-11-12 00:44:59,890 INFO L78 Accepts]: Start accepts. Automaton has 8404 states and 24748 transitions. Word has length 9 [2023-11-12 00:44:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:44:59,891 INFO L495 AbstractCegarLoop]: Abstraction has 8404 states and 24748 transitions. [2023-11-12 00:44:59,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-12 00:44:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 8404 states and 24748 transitions. [2023-11-12 00:44:59,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:44:59,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:59,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:44:59,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:44:59,895 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-12 00:44:59,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:59,896 INFO L85 PathProgramCache]: Analyzing trace with hash 178475253, now seen corresponding path program 1 times [2023-11-12 00:44:59,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:59,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822957701] [2023-11-12 00:44:59,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:59,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:59,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:44:59,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:44:59,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822957701] [2023-11-12 00:44:59,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822957701] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:59,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:59,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:44:59,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624049878] [2023-11-12 00:44:59,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:59,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:44:59,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:44:59,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:44:59,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:44:59,964 INFO L87 Difference]: Start difference. First operand 8404 states and 24748 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-12 00:45:00,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:45:00,390 INFO L93 Difference]: Finished difference Result 10849 states and 31285 transitions. [2023-11-12 00:45:00,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:45:00,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2023-11-12 00:45:00,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:45:00,519 INFO L225 Difference]: With dead ends: 10849 [2023-11-12 00:45:00,520 INFO L226 Difference]: Without dead ends: 10849 [2023-11-12 00:45:00,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:45:00,521 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 48 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:45:00,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 43 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:45:00,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10849 states. [2023-11-12 00:45:00,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10849 to 8878. [2023-11-12 00:45:00,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8878 states, 8793 states have (on average 2.9277834641191856) internal successors, (25744), 8877 states have internal predecessors, (25744), 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) [2023-11-12 00:45:00,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8878 states to 8878 states and 25744 transitions. [2023-11-12 00:45:00,816 INFO L78 Accepts]: Start accepts. Automaton has 8878 states and 25744 transitions. Word has length 9 [2023-11-12 00:45:00,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:45:00,816 INFO L495 AbstractCegarLoop]: Abstraction has 8878 states and 25744 transitions. [2023-11-12 00:45:00,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-12 00:45:00,817 INFO L276 IsEmpty]: Start isEmpty. Operand 8878 states and 25744 transitions. [2023-11-12 00:45:00,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:45:00,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:00,819 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-12 00:45:00,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:45:00,819 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-12 00:45:00,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:00,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1170119826, now seen corresponding path program 1 times [2023-11-12 00:45:00,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:45:00,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005773873] [2023-11-12 00:45:00,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:00,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:45:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:45:00,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:45:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:45:00,861 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:45:00,862 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:45:00,862 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-11-12 00:45:00,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-11-12 00:45:00,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-11-12 00:45:00,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-11-12 00:45:00,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-11-12 00:45:00,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-11-12 00:45:00,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-11-12 00:45:00,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-11-12 00:45:00,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-11-12 00:45:00,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-11-12 00:45:00,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-11-12 00:45:00,864 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-11-12 00:45:00,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-11-12 00:45:00,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-11-12 00:45:00,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-11-12 00:45:00,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-11-12 00:45:00,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2023-11-12 00:45:00,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-11-12 00:45:00,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-11-12 00:45:00,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-11-12 00:45:00,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-11-12 00:45:00,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-11-12 00:45:00,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-11-12 00:45:00,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-11-12 00:45:00,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-11-12 00:45:00,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-11-12 00:45:00,867 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-11-12 00:45:00,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-11-12 00:45:00,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-11-12 00:45:00,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-11-12 00:45:00,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-11-12 00:45:00,868 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-11-12 00:45:00,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2023-11-12 00:45:00,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-11-12 00:45:00,869 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-11-12 00:45:00,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-11-12 00:45:00,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-11-12 00:45:00,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-11-12 00:45:00,870 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-11-12 00:45:00,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-11-12 00:45:00,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-11-12 00:45:00,874 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-11-12 00:45:00,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-11-12 00:45:00,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-11-12 00:45:00,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-11-12 00:45:00,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-11-12 00:45:00,875 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-11-12 00:45:00,876 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-11-12 00:45:00,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2023-11-12 00:45:00,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:45:00,878 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:45:00,879 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 00:45:00,879 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-12 00:45:00,923 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:45:00,927 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:45:00,927 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 212 transitions, 442 flow [2023-11-12 00:45:00,928 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 212 transitions, 442 flow [2023-11-12 00:45:00,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 212 transitions, 442 flow [2023-11-12 00:45:01,091 INFO L124 PetriNetUnfolderBase]: 25/411 cut-off events. [2023-11-12 00:45:01,092 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-12 00:45:01,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 411 events. 25/411 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1744 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 304. Up to 8 conditions per place. [2023-11-12 00:45:01,132 INFO L119 LiptonReduction]: Number of co-enabled transitions 28896