./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire --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 d2c89f010e0f73e8ba7e81bb150b82b70d39c0827c0d616dd2c3347839d51e01 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:02,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:02,934 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-23 21:16:02,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:02,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:02,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:02,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:02,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:02,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:02,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:02,974 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:02,975 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:02,976 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:02,976 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:02,977 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:02,978 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:02,978 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:02,979 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:02,979 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:02,980 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:02,980 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:02,981 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:02,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:02,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:02,982 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:16:02,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:02,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:16:02,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:02,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:02,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:02,985 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:02,985 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:16:02,986 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:16:02,986 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:16:02,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:02,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:02,987 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:02,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:02,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:02,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:02,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:02,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:02,988 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:02,988 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:02,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:02,989 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:02,989 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:02,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:02,989 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_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2c89f010e0f73e8ba7e81bb150b82b70d39c0827c0d616dd2c3347839d51e01 [2023-11-23 21:16:03,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:03,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:03,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:03,299 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:03,300 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:03,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2023-11-23 21:16:06,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:06,627 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:06,628 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/sv-benchmarks/c/weaver/popl20-queue-add-3.wvr.c [2023-11-23 21:16:06,637 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/data/7833a0036/03c77e4005bf430c8e9c04a3c4ee9411/FLAGf218023fa [2023-11-23 21:16:06,651 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/data/7833a0036/03c77e4005bf430c8e9c04a3c4ee9411 [2023-11-23 21:16:06,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:06,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:06,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:06,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:06,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:06,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:06,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42384ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06, skipping insertion in model container [2023-11-23 21:16:06,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:06,691 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:06,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:06,916 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:06,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:06,969 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:06,969 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:06,977 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:06,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06 WrapperNode [2023-11-23 21:16:06,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:06,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:06,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:06,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:06,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:07,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:07,060 INFO L138 Inliner]: procedures = 25, calls = 56, calls flagged for inlining = 17, calls inlined = 19, statements flattened = 493 [2023-11-23 21:16:07,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:07,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:07,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:07,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:07,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:07,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:07,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:07,103 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:07,146 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:07,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:07,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:07,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:07,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:07,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:07,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:07,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:07,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (1/1) ... [2023-11-23 21:16:07,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:07,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:07,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:07,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c43afc67-8564-48e1-b5a4-478faa152ad0/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:16:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:16:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:16:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 21:16:07,271 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 21:16:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 21:16:07,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 21:16:07,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 21:16:07,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 21:16:07,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:07,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 21:16:07,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 21:16:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:16:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:07,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:16:07,277 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:16:07,421 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:07,423 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:08,307 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:08,854 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:08,855 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 21:16:08,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:08 BoogieIcfgContainer [2023-11-23 21:16:08,857 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:08,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:08,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:08,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:08,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:06" (1/3) ... [2023-11-23 21:16:08,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d08d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:08, skipping insertion in model container [2023-11-23 21:16:08,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:06" (2/3) ... [2023-11-23 21:16:08,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57d08d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:08, skipping insertion in model container [2023-11-23 21:16:08,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:08" (3/3) ... [2023-11-23 21:16:08,871 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-queue-add-3.wvr.c [2023-11-23 21:16:08,881 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:16:08,892 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:08,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2023-11-23 21:16:08,893 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:16:09,065 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-23 21:16:09,122 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 377 places, 385 transitions, 791 flow [2023-11-23 21:16:20,228 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 317405 states, 307274 states have (on average 4.143158874489869) internal successors, (1273085), 317404 states have internal predecessors, (1273085), 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) [2023-11-23 21:16:20,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:20,292 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;@2f4a6af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:20,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 122 error locations. [2023-11-23 21:16:20,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 317405 states, 307274 states have (on average 4.143158874489869) internal successors, (1273085), 317404 states have internal predecessors, (1273085), 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) [2023-11-23 21:16:20,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 21:16:20,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:20,701 INFO L195 NwaCegarLoop]: 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] [2023-11-23 21:16:20,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err9ASSERT_VIOLATIONDATA_RACE, thread1Err10ASSERT_VIOLATIONDATA_RACE, thread1Err11ASSERT_VIOLATIONDATA_RACE (and 118 more)] === [2023-11-23 21:16:20,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:20,716 INFO L85 PathProgramCache]: Analyzing trace with hash 952478365, now seen corresponding path program 1 times [2023-11-23 21:16:20,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:20,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154155970] [2023-11-23 21:16:20,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:20,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:21,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:16:21,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:21,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154155970] [2023-11-23 21:16:21,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154155970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:21,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:21,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:21,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176395277] [2023-11-23 21:16:21,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:21,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:21,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:21,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:21,609 INFO L87 Difference]: Start difference. First operand has 317405 states, 307274 states have (on average 4.143158874489869) internal successors, (1273085), 317404 states have internal predecessors, (1273085), 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 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-23 21:16:23,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:23,860 INFO L93 Difference]: Finished difference Result 50728 states and 192831 transitions. [2023-11-23 21:16:23,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:23,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2023-11-23 21:16:23,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:24,392 INFO L225 Difference]: With dead ends: 50728 [2023-11-23 21:16:24,392 INFO L226 Difference]: Without dead ends: 50723 [2023-11-23 21:16:24,394 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 [2023-11-23 21:16:24,399 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 2 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:24,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 567 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:25,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50723 states. [2023-11-23 21:16:27,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50723 to 50723. [2023-11-23 21:16:27,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50723 states, 50659 states have (on average 3.8063522769892812) internal successors, (192826), 50722 states have internal predecessors, (192826), 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) [2023-11-23 21:16:28,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50723 states to 50723 states and 192826 transitions. [2023-11-23 21:16:28,285 INFO L78 Accepts]: Start accepts. Automaton has 50723 states and 192826 transitions. Word has length 28 [2023-11-23 21:16:28,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:28,286 INFO L495 AbstractCegarLoop]: Abstraction has 50723 states and 192826 transitions. [2023-11-23 21:16:28,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-23 21:16:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 50723 states and 192826 transitions. [2023-11-23 21:16:28,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 21:16:28,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:28,289 INFO L195 NwaCegarLoop]: 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] [2023-11-23 21:16:28,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:28,290 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err9ASSERT_VIOLATIONDATA_RACE, thread1Err10ASSERT_VIOLATIONDATA_RACE, thread1Err11ASSERT_VIOLATIONDATA_RACE (and 118 more)] === [2023-11-23 21:16:28,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:28,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1681502295, now seen corresponding path program 1 times [2023-11-23 21:16:28,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:28,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539198953] [2023-11-23 21:16:28,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:28,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:28,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:16:28,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:28,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539198953] [2023-11-23 21:16:28,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539198953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:28,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:28,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:28,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634321215] [2023-11-23 21:16:28,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:28,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:28,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:28,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:28,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:28,381 INFO L87 Difference]: Start difference. First operand 50723 states and 192826 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-11-23 21:16:29,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:29,366 INFO L93 Difference]: Finished difference Result 50722 states and 192825 transitions. [2023-11-23 21:16:29,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:29,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2023-11-23 21:16:29,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:30,764 INFO L225 Difference]: With dead ends: 50722 [2023-11-23 21:16:30,765 INFO L226 Difference]: Without dead ends: 50722 [2023-11-23 21:16:30,770 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 [2023-11-23 21:16:30,772 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 2 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:30,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 560 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:16:30,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50722 states. [2023-11-23 21:16:33,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50722 to 50722. [2023-11-23 21:16:33,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50722 states, 50659 states have (on average 3.806332537160228) internal successors, (192825), 50721 states have internal predecessors, (192825), 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) [2023-11-23 21:16:33,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50722 states to 50722 states and 192825 transitions. [2023-11-23 21:16:33,351 INFO L78 Accepts]: Start accepts. Automaton has 50722 states and 192825 transitions. Word has length 36 [2023-11-23 21:16:33,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:33,351 INFO L495 AbstractCegarLoop]: Abstraction has 50722 states and 192825 transitions. [2023-11-23 21:16:33,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-11-23 21:16:33,352 INFO L276 IsEmpty]: Start isEmpty. Operand 50722 states and 192825 transitions. [2023-11-23 21:16:33,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 21:16:33,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:33,354 INFO L195 NwaCegarLoop]: 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] [2023-11-23 21:16:33,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:16:33,354 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err9ASSERT_VIOLATIONDATA_RACE, thread1Err10ASSERT_VIOLATIONDATA_RACE, thread1Err11ASSERT_VIOLATIONDATA_RACE (and 118 more)] === [2023-11-23 21:16:33,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:33,356 INFO L85 PathProgramCache]: Analyzing trace with hash 886509222, now seen corresponding path program 1 times [2023-11-23 21:16:33,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:33,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549700660] [2023-11-23 21:16:33,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:33,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:33,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:16:33,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:33,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549700660] [2023-11-23 21:16:33,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549700660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:33,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:33,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:33,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564312753] [2023-11-23 21:16:33,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:33,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:33,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:33,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:33,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:33,438 INFO L87 Difference]: Start difference. First operand 50722 states and 192825 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2023-11-23 21:16:33,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:33,818 INFO L93 Difference]: Finished difference Result 50721 states and 192824 transitions. [2023-11-23 21:16:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:33,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2023-11-23 21:16:33,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:34,882 INFO L225 Difference]: With dead ends: 50721 [2023-11-23 21:16:34,883 INFO L226 Difference]: Without dead ends: 50721 [2023-11-23 21:16:34,883 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 [2023-11-23 21:16:34,893 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 2 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:34,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 558 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:16:35,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50721 states. [2023-11-23 21:16:36,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50721 to 50721. [2023-11-23 21:16:36,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50721 states, 50659 states have (on average 3.806312797331175) internal successors, (192824), 50720 states have internal predecessors, (192824), 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) [2023-11-23 21:16:37,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50721 states to 50721 states and 192824 transitions. [2023-11-23 21:16:37,227 INFO L78 Accepts]: Start accepts. Automaton has 50721 states and 192824 transitions. Word has length 44 [2023-11-23 21:16:37,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:37,228 INFO L495 AbstractCegarLoop]: Abstraction has 50721 states and 192824 transitions. [2023-11-23 21:16:37,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2023-11-23 21:16:37,228 INFO L276 IsEmpty]: Start isEmpty. Operand 50721 states and 192824 transitions. [2023-11-23 21:16:37,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-23 21:16:37,230 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:37,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:37,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:16:37,231 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err9ASSERT_VIOLATIONDATA_RACE, thread1Err10ASSERT_VIOLATIONDATA_RACE, thread1Err11ASSERT_VIOLATIONDATA_RACE (and 118 more)] === [2023-11-23 21:16:37,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:37,232 INFO L85 PathProgramCache]: Analyzing trace with hash -985734678, now seen corresponding path program 1 times [2023-11-23 21:16:37,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:37,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148914] [2023-11-23 21:16:37,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:37,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:37,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:16:37,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:37,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148914] [2023-11-23 21:16:37,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:37,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:37,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:37,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724787909] [2023-11-23 21:16:37,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:37,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:37,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:37,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:37,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:37,356 INFO L87 Difference]: Start difference. First operand 50721 states and 192824 transitions. Second operand has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-11-23 21:16:38,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:38,085 INFO L93 Difference]: Finished difference Result 50720 states and 192823 transitions. [2023-11-23 21:16:38,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:38,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2023-11-23 21:16:38,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:38,489 INFO L225 Difference]: With dead ends: 50720 [2023-11-23 21:16:38,489 INFO L226 Difference]: Without dead ends: 50720 [2023-11-23 21:16:38,489 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 [2023-11-23 21:16:38,499 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 2 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:38,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 556 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:16:38,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50720 states. [2023-11-23 21:16:40,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50720 to 50720. [2023-11-23 21:16:41,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50720 states, 50659 states have (on average 3.806293057502122) internal successors, (192823), 50719 states have internal predecessors, (192823), 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) [2023-11-23 21:16:41,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50720 states to 50720 states and 192823 transitions. [2023-11-23 21:16:41,945 INFO L78 Accepts]: Start accepts. Automaton has 50720 states and 192823 transitions. Word has length 52 [2023-11-23 21:16:41,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:41,947 INFO L495 AbstractCegarLoop]: Abstraction has 50720 states and 192823 transitions. [2023-11-23 21:16:41,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-11-23 21:16:41,948 INFO L276 IsEmpty]: Start isEmpty. Operand 50720 states and 192823 transitions. [2023-11-23 21:16:41,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 21:16:41,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:41,951 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:41,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:16:41,952 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err9ASSERT_VIOLATIONDATA_RACE, thread1Err10ASSERT_VIOLATIONDATA_RACE, thread1Err11ASSERT_VIOLATIONDATA_RACE (and 118 more)] === [2023-11-23 21:16:41,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:41,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1754484228, now seen corresponding path program 1 times [2023-11-23 21:16:41,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:41,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453750494] [2023-11-23 21:16:41,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:41,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:16:42,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:42,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453750494] [2023-11-23 21:16:42,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453750494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:42,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:42,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:42,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135514034] [2023-11-23 21:16:42,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:42,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:42,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:42,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:42,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:42,088 INFO L87 Difference]: Start difference. First operand 50720 states and 192823 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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) [2023-11-23 21:16:42,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:42,593 INFO L93 Difference]: Finished difference Result 56305 states and 214170 transitions. [2023-11-23 21:16:42,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:42,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2023-11-23 21:16:42,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:42,958 INFO L225 Difference]: With dead ends: 56305 [2023-11-23 21:16:42,958 INFO L226 Difference]: Without dead ends: 56305 [2023-11-23 21:16:42,958 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 [2023-11-23 21:16:42,959 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 207 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:42,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 412 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:16:43,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56305 states. [2023-11-23 21:16:45,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56305 to 50719. [2023-11-23 21:16:45,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50719 states, 50659 states have (on average 3.8062733176730688) internal successors, (192822), 50718 states have internal predecessors, (192822), 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) [2023-11-23 21:16:45,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50719 states to 50719 states and 192822 transitions. [2023-11-23 21:16:45,307 INFO L78 Accepts]: Start accepts. Automaton has 50719 states and 192822 transitions. Word has length 56 [2023-11-23 21:16:45,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:45,308 INFO L495 AbstractCegarLoop]: Abstraction has 50719 states and 192822 transitions. [2023-11-23 21:16:45,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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) [2023-11-23 21:16:45,308 INFO L276 IsEmpty]: Start isEmpty. Operand 50719 states and 192822 transitions. [2023-11-23 21:16:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 21:16:45,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:45,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:45,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:16:45,311 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err9ASSERT_VIOLATIONDATA_RACE, thread1Err10ASSERT_VIOLATIONDATA_RACE, thread1Err11ASSERT_VIOLATIONDATA_RACE (and 118 more)] === [2023-11-23 21:16:45,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:45,311 INFO L85 PathProgramCache]: Analyzing trace with hash 890688504, now seen corresponding path program 1 times [2023-11-23 21:16:45,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:45,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664978782] [2023-11-23 21:16:45,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:45,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:45,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:16:45,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:45,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664978782] [2023-11-23 21:16:45,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664978782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:45,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:45,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:45,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960603122] [2023-11-23 21:16:45,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:45,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:45,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:45,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:45,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:45,370 INFO L87 Difference]: Start difference. First operand 50719 states and 192822 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2023-11-23 21:16:46,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:46,686 INFO L93 Difference]: Finished difference Result 50718 states and 192821 transitions. [2023-11-23 21:16:46,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:46,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2023-11-23 21:16:46,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:47,031 INFO L225 Difference]: With dead ends: 50718 [2023-11-23 21:16:47,032 INFO L226 Difference]: Without dead ends: 50718 [2023-11-23 21:16:47,032 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 [2023-11-23 21:16:47,033 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 1 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:47,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 556 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:16:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50718 states. [2023-11-23 21:16:49,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50718 to 50718. [2023-11-23 21:16:49,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50718 states, 50659 states have (on average 3.806253577844016) internal successors, (192821), 50717 states have internal predecessors, (192821), 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) [2023-11-23 21:16:49,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50718 states to 50718 states and 192821 transitions. [2023-11-23 21:16:49,327 INFO L78 Accepts]: Start accepts. Automaton has 50718 states and 192821 transitions. Word has length 60 [2023-11-23 21:16:49,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:49,327 INFO L495 AbstractCegarLoop]: Abstraction has 50718 states and 192821 transitions. [2023-11-23 21:16:49,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2023-11-23 21:16:49,328 INFO L276 IsEmpty]: Start isEmpty. Operand 50718 states and 192821 transitions. [2023-11-23 21:16:49,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 21:16:49,329 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:49,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:49,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:16:49,330 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err9ASSERT_VIOLATIONDATA_RACE, thread1Err10ASSERT_VIOLATIONDATA_RACE, thread1Err11ASSERT_VIOLATIONDATA_RACE (and 118 more)] === [2023-11-23 21:16:49,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:49,330 INFO L85 PathProgramCache]: Analyzing trace with hash 885671728, now seen corresponding path program 1 times [2023-11-23 21:16:49,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:49,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552436776] [2023-11-23 21:16:49,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:49,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:49,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:16:49,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:49,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552436776] [2023-11-23 21:16:49,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552436776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:49,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:49,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:49,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186048009] [2023-11-23 21:16:49,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:49,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:49,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:49,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:49,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:49,417 INFO L87 Difference]: Start difference. First operand 50718 states and 192821 transitions. Second operand has 3 states, 2 states have (on average 33.5) internal successors, (67), 3 states have internal predecessors, (67), 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)