./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_bef34f1b-fc07-4347-89ed-88e324d47262/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/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_bef34f1b-fc07-4347-89ed-88e324d47262/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/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_bef34f1b-fc07-4347-89ed-88e324d47262/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 a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:59,713 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:59,799 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-23 20:33:59,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:59,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:59,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:59,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:59,871 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:59,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:59,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:59,880 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:59,880 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:59,881 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:59,883 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:59,884 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:59,884 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:59,885 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:59,886 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:59,886 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:59,887 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:59,888 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:59,889 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:59,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:59,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:59,891 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:59,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:59,893 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:59,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:59,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:59,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:59,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:59,897 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 20:33:59,897 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:33:59,898 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:59,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:59,899 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:59,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:59,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:59,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:59,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:59,901 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:59,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:59,902 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:59,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:59,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:59,904 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:59,905 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:59,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:59,905 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_bef34f1b-fc07-4347-89ed-88e324d47262/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a98c974c803b808e0d7e2f56f44a4386aecc7f9a41003cc6d1be849c6b132112 [2023-11-23 20:34:00,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:00,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:00,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:00,226 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:00,226 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:00,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2023-11-23 20:34:03,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:03,963 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:03,964 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/sv-benchmarks/c/goblint-regression/09-regions_26-alloc_region_rc.i [2023-11-23 20:34:04,000 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/bin/utaipan-verify-mE87zJ7Ire/data/b8714231a/91e2a386b91c47e9b97be06c21571172/FLAG73e31234b [2023-11-23 20:34:04,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/bin/utaipan-verify-mE87zJ7Ire/data/b8714231a/91e2a386b91c47e9b97be06c21571172 [2023-11-23 20:34:04,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:04,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:04,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:04,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:04,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:04,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,035 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c4965a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:04, skipping insertion in model container [2023-11-23 20:34:04,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:04" (1/1) ... [2023-11-23 20:34:04,099 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:04,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:04,939 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:05,016 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:05,135 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:05,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05 WrapperNode [2023-11-23 20:34:05,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:05,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:05,138 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:05,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:05,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (1/1) ... [2023-11-23 20:34:05,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (1/1) ... [2023-11-23 20:34:05,269 INFO L138 Inliner]: procedures = 371, calls = 50, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 247 [2023-11-23 20:34:05,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:05,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:05,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:05,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:05,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (1/1) ... [2023-11-23 20:34:05,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (1/1) ... [2023-11-23 20:34:05,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (1/1) ... [2023-11-23 20:34:05,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (1/1) ... [2023-11-23 20:34:05,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (1/1) ... [2023-11-23 20:34:05,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (1/1) ... [2023-11-23 20:34:05,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (1/1) ... [2023-11-23 20:34:05,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (1/1) ... [2023-11-23 20:34:05,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:05,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:05,406 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:05,406 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:05,407 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (1/1) ... [2023-11-23 20:34:05,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:05,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:05,453 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:05,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef34f1b-fc07-4347-89ed-88e324d47262/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:34:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:34:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:34:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:34:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 20:34:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:34:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:34:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 20:34:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:34:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:34:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-23 20:34:05,552 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-23 20:34:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:05,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:05,556 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 20:34:05,810 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:05,813 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:06,628 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:06,687 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:06,687 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:06,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:06 BoogieIcfgContainer [2023-11-23 20:34:06,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:06,693 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:06,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:06,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:06,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:04" (1/3) ... [2023-11-23 20:34:06,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a958786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:06, skipping insertion in model container [2023-11-23 20:34:06,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:05" (2/3) ... [2023-11-23 20:34:06,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a958786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:06, skipping insertion in model container [2023-11-23 20:34:06,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:06" (3/3) ... [2023-11-23 20:34:06,705 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_26-alloc_region_rc.i [2023-11-23 20:34:06,715 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 20:34:06,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:06,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-23 20:34:06,726 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 20:34:06,856 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 20:34:06,917 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 276 places, 274 transitions, 552 flow [2023-11-23 20:34:07,365 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 10160 states, 10077 states have (on average 2.0064503324402105) internal successors, (20219), 10159 states have internal predecessors, (20219), 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 20:34:07,393 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:07,403 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;@69b0a07e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:07,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-23 20:34:07,447 INFO L276 IsEmpty]: Start isEmpty. Operand has 10160 states, 10077 states have (on average 2.0064503324402105) internal successors, (20219), 10159 states have internal predecessors, (20219), 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 20:34:07,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 20:34:07,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:07,466 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] [2023-11-23 20:34:07,467 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:07,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:07,475 INFO L85 PathProgramCache]: Analyzing trace with hash 104069639, now seen corresponding path program 1 times [2023-11-23 20:34:07,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:07,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543879426] [2023-11-23 20:34:07,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:07,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:08,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:34:08,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:08,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543879426] [2023-11-23 20:34:08,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543879426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:08,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:08,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:34:08,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28801238] [2023-11-23 20:34:08,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:08,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:34:08,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:08,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:34:08,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:08,640 INFO L87 Difference]: Start difference. First operand has 10160 states, 10077 states have (on average 2.0064503324402105) internal successors, (20219), 10159 states have internal predecessors, (20219), 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 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 20:34:09,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:09,350 INFO L93 Difference]: Finished difference Result 10159 states and 20136 transitions. [2023-11-23 20:34:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:34:09,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2023-11-23 20:34:09,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:09,479 INFO L225 Difference]: With dead ends: 10159 [2023-11-23 20:34:09,479 INFO L226 Difference]: Without dead ends: 10159 [2023-11-23 20:34:09,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:09,488 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 6 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:09,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 520 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 20:34:09,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10159 states. [2023-11-23 20:34:10,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10159 to 10159. [2023-11-23 20:34:10,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10159 states, 10077 states have (on average 1.9982137540934801) internal successors, (20136), 10158 states have internal predecessors, (20136), 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 20:34:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10159 states to 10159 states and 20136 transitions. [2023-11-23 20:34:10,127 INFO L78 Accepts]: Start accepts. Automaton has 10159 states and 20136 transitions. Word has length 31 [2023-11-23 20:34:10,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:10,128 INFO L495 AbstractCegarLoop]: Abstraction has 10159 states and 20136 transitions. [2023-11-23 20:34:10,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 20:34:10,128 INFO L276 IsEmpty]: Start isEmpty. Operand 10159 states and 20136 transitions. [2023-11-23 20:34:10,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 20:34:10,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:10,130 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] [2023-11-23 20:34:10,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:34:10,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:10,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:10,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1123742549, now seen corresponding path program 1 times [2023-11-23 20:34:10,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:10,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163514398] [2023-11-23 20:34:10,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:10,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:10,738 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 20:34:10,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:10,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163514398] [2023-11-23 20:34:10,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163514398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:10,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:10,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:34:10,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407641396] [2023-11-23 20:34:10,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:10,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:34:10,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:10,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:34:10,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:10,743 INFO L87 Difference]: Start difference. First operand 10159 states and 20136 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 20:34:11,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:11,799 INFO L93 Difference]: Finished difference Result 13464 states and 26704 transitions. [2023-11-23 20:34:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:34:11,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2023-11-23 20:34:11,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:11,920 INFO L225 Difference]: With dead ends: 13464 [2023-11-23 20:34:11,920 INFO L226 Difference]: Without dead ends: 13464 [2023-11-23 20:34:11,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:11,922 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 314 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:11,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 830 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 20:34:11,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13464 states. [2023-11-23 20:34:12,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13464 to 10463. [2023-11-23 20:34:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10463 states, 10382 states have (on average 1.9977846272394528) internal successors, (20741), 10462 states have internal predecessors, (20741), 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 20:34:12,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10463 states to 10463 states and 20741 transitions. [2023-11-23 20:34:12,356 INFO L78 Accepts]: Start accepts. Automaton has 10463 states and 20741 transitions. Word has length 39 [2023-11-23 20:34:12,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:12,357 INFO L495 AbstractCegarLoop]: Abstraction has 10463 states and 20741 transitions. [2023-11-23 20:34:12,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 20:34:12,358 INFO L276 IsEmpty]: Start isEmpty. Operand 10463 states and 20741 transitions. [2023-11-23 20:34:12,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-23 20:34:12,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:12,362 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] [2023-11-23 20:34:12,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:34:12,364 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:12,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:12,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1384719745, now seen corresponding path program 1 times [2023-11-23 20:34:12,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:12,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652818051] [2023-11-23 20:34:12,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:12,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:12,854 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 20:34:12,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:12,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652818051] [2023-11-23 20:34:12,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652818051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:12,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:12,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:34:12,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748955912] [2023-11-23 20:34:12,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:12,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:34:12,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:12,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:34:12,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:12,859 INFO L87 Difference]: Start difference. First operand 10463 states and 20741 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 20:34:13,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:13,598 INFO L93 Difference]: Finished difference Result 10846 states and 21503 transitions. [2023-11-23 20:34:13,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:34:13,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 50 [2023-11-23 20:34:13,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:13,636 INFO L225 Difference]: With dead ends: 10846 [2023-11-23 20:34:13,636 INFO L226 Difference]: Without dead ends: 10846 [2023-11-23 20:34:13,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:13,645 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 250 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:13,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 725 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 20:34:13,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10846 states. [2023-11-23 20:34:14,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10846 to 10767. [2023-11-23 20:34:14,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10767 states, 10687 states have (on average 1.9973799943857022) internal successors, (21346), 10766 states have internal predecessors, (21346), 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 20:34:14,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10767 states to 10767 states and 21346 transitions. [2023-11-23 20:34:14,101 INFO L78 Accepts]: Start accepts. Automaton has 10767 states and 21346 transitions. Word has length 50 [2023-11-23 20:34:14,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:14,102 INFO L495 AbstractCegarLoop]: Abstraction has 10767 states and 21346 transitions. [2023-11-23 20:34:14,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 20:34:14,103 INFO L276 IsEmpty]: Start isEmpty. Operand 10767 states and 21346 transitions. [2023-11-23 20:34:14,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 20:34:14,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:14,105 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] [2023-11-23 20:34:14,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:34:14,105 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:14,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:14,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1143514296, now seen corresponding path program 1 times [2023-11-23 20:34:14,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:14,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455435973] [2023-11-23 20:34:14,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:14,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:14,684 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 20:34:14,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:14,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455435973] [2023-11-23 20:34:14,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455435973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:14,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:14,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:34:14,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46830883] [2023-11-23 20:34:14,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:14,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:34:14,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:14,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:34:14,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:14,689 INFO L87 Difference]: Start difference. First operand 10767 states and 21346 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 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 20:34:15,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:15,549 INFO L93 Difference]: Finished difference Result 11150 states and 22108 transitions. [2023-11-23 20:34:15,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:34:15,550 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 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 58 [2023-11-23 20:34:15,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:15,595 INFO L225 Difference]: With dead ends: 11150 [2023-11-23 20:34:15,595 INFO L226 Difference]: Without dead ends: 11150 [2023-11-23 20:34:15,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:15,608 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 250 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:15,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 724 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 20:34:15,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11150 states. [2023-11-23 20:34:15,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11150 to 11071. [2023-11-23 20:34:15,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11071 states, 10992 states have (on average 1.9969978165938864) internal successors, (21951), 11070 states have internal predecessors, (21951), 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 20:34:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11071 states to 11071 states and 21951 transitions. [2023-11-23 20:34:15,938 INFO L78 Accepts]: Start accepts. Automaton has 11071 states and 21951 transitions. Word has length 58 [2023-11-23 20:34:15,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:15,939 INFO L495 AbstractCegarLoop]: Abstraction has 11071 states and 21951 transitions. [2023-11-23 20:34:15,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 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 20:34:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 11071 states and 21951 transitions. [2023-11-23 20:34:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 20:34:15,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:15,953 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:15,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:34:15,955 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:15,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:15,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1982707980, now seen corresponding path program 1 times [2023-11-23 20:34:15,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:15,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279836618] [2023-11-23 20:34:15,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:15,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:16,686 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 20:34:16,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:16,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279836618] [2023-11-23 20:34:16,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279836618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:16,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:16,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:34:16,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503718556] [2023-11-23 20:34:16,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:16,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:34:16,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:16,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:34:16,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:16,691 INFO L87 Difference]: Start difference. First operand 11071 states and 21951 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 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 20:34:17,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:17,516 INFO L93 Difference]: Finished difference Result 11570 states and 22949 transitions. [2023-11-23 20:34:17,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:34:17,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 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 81 [2023-11-23 20:34:17,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:17,563 INFO L225 Difference]: With dead ends: 11570 [2023-11-23 20:34:17,563 INFO L226 Difference]: Without dead ends: 11570 [2023-11-23 20:34:17,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:17,565 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 310 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:17,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 939 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 20:34:17,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11570 states. [2023-11-23 20:34:17,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11570 to 11460. [2023-11-23 20:34:17,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11460 states, 11381 states have (on average 1.9971004305421316) internal successors, (22729), 11459 states have internal predecessors, (22729), 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 20:34:17,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11460 states to 11460 states and 22729 transitions. [2023-11-23 20:34:17,981 INFO L78 Accepts]: Start accepts. Automaton has 11460 states and 22729 transitions. Word has length 81 [2023-11-23 20:34:17,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:17,982 INFO L495 AbstractCegarLoop]: Abstraction has 11460 states and 22729 transitions. [2023-11-23 20:34:17,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 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 20:34:17,983 INFO L276 IsEmpty]: Start isEmpty. Operand 11460 states and 22729 transitions. [2023-11-23 20:34:17,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 20:34:17,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:17,986 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, 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 20:34:17,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:34:17,987 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:17,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:17,987 INFO L85 PathProgramCache]: Analyzing trace with hash -199277295, now seen corresponding path program 1 times [2023-11-23 20:34:17,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:17,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579336851] [2023-11-23 20:34:17,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:17,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:18,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:18,639 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 20:34:18,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:18,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579336851] [2023-11-23 20:34:18,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579336851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:18,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:18,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:34:18,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971823373] [2023-11-23 20:34:18,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:18,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:34:18,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:18,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:34:18,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:18,649 INFO L87 Difference]: Start difference. First operand 11460 states and 22729 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 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 20:34:19,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:19,594 INFO L93 Difference]: Finished difference Result 11959 states and 23727 transitions. [2023-11-23 20:34:19,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:34:19,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 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 89 [2023-11-23 20:34:19,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:19,644 INFO L225 Difference]: With dead ends: 11959 [2023-11-23 20:34:19,645 INFO L226 Difference]: Without dead ends: 11959 [2023-11-23 20:34:19,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:34:19,647 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 311 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:19,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 831 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 20:34:19,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11959 states. [2023-11-23 20:34:20,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11959 to 11849. [2023-11-23 20:34:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11849 states, 11770 states have (on average 1.997196261682243) internal successors, (23507), 11848 states have internal predecessors, (23507), 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 20:34:20,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11849 states to 11849 states and 23507 transitions. [2023-11-23 20:34:20,076 INFO L78 Accepts]: Start accepts. Automaton has 11849 states and 23507 transitions. Word has length 89 [2023-11-23 20:34:20,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:20,077 INFO L495 AbstractCegarLoop]: Abstraction has 11849 states and 23507 transitions. [2023-11-23 20:34:20,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 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 20:34:20,077 INFO L276 IsEmpty]: Start isEmpty. Operand 11849 states and 23507 transitions. [2023-11-23 20:34:20,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 20:34:20,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:20,080 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, 1, 1, 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 20:34:20,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 20:34:20,080 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:20,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:20,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1956805818, now seen corresponding path program 1 times [2023-11-23 20:34:20,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:20,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291220277] [2023-11-23 20:34:20,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:20,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:21,313 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 20:34:21,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:21,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291220277] [2023-11-23 20:34:21,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291220277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:21,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:21,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 20:34:21,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014364680] [2023-11-23 20:34:21,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:21,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 20:34:21,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:21,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 20:34:21,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-11-23 20:34:21,317 INFO L87 Difference]: Start difference. First operand 11849 states and 23507 transitions. Second operand has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 20:34:24,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:24,870 INFO L93 Difference]: Finished difference Result 16950 states and 33626 transitions. [2023-11-23 20:34:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-23 20:34:24,870 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 93 [2023-11-23 20:34:24,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:24,933 INFO L225 Difference]: With dead ends: 16950 [2023-11-23 20:34:24,933 INFO L226 Difference]: Without dead ends: 16950 [2023-11-23 20:34:24,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=309, Invalid=951, Unknown=0, NotChecked=0, Total=1260 [2023-11-23 20:34:24,935 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 1312 mSDsluCounter, 4421 mSDsCounter, 0 mSdLazyCounter, 3191 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 5201 SdHoareTripleChecker+Invalid, 3238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 3191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:24,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 5201 Invalid, 3238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 3191 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-23 20:34:24,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16950 states. [2023-11-23 20:34:25,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16950 to 11889. [2023-11-23 20:34:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11889 states, 11810 states have (on average 1.9972057578323454) internal successors, (23587), 11888 states have internal predecessors, (23587), 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 20:34:25,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11889 states to 11889 states and 23587 transitions. [2023-11-23 20:34:25,257 INFO L78 Accepts]: Start accepts. Automaton has 11889 states and 23587 transitions. Word has length 93 [2023-11-23 20:34:25,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:25,257 INFO L495 AbstractCegarLoop]: Abstraction has 11889 states and 23587 transitions. [2023-11-23 20:34:25,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 20:34:25,258 INFO L276 IsEmpty]: Start isEmpty. Operand 11889 states and 23587 transitions. [2023-11-23 20:34:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 20:34:25,265 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:25,266 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, 1, 1, 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 20:34:25,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 20:34:25,267 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:25,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:25,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1017710726, now seen corresponding path program 2 times [2023-11-23 20:34:25,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:25,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525041928] [2023-11-23 20:34:25,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:25,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:26,173 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 20:34:26,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:26,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525041928] [2023-11-23 20:34:26,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525041928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:26,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:26,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 20:34:26,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217279110] [2023-11-23 20:34:26,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:26,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 20:34:26,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:26,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 20:34:26,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-11-23 20:34:26,176 INFO L87 Difference]: Start difference. First operand 11889 states and 23587 transitions. Second operand has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 20:34:30,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:30,509 INFO L93 Difference]: Finished difference Result 17023 states and 33772 transitions. [2023-11-23 20:34:30,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-23 20:34:30,510 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 93 [2023-11-23 20:34:30,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:30,555 INFO L225 Difference]: With dead ends: 17023 [2023-11-23 20:34:30,556 INFO L226 Difference]: Without dead ends: 17023 [2023-11-23 20:34:30,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2023-11-23 20:34:30,557 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 1403 mSDsluCounter, 5218 mSDsCounter, 0 mSdLazyCounter, 4396 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 5997 SdHoareTripleChecker+Invalid, 4441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 4396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:30,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 5997 Invalid, 4441 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 4396 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-23 20:34:30,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17023 states. [2023-11-23 20:34:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17023 to 11914. [2023-11-23 20:34:30,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11914 states, 11835 states have (on average 1.9972961554710604) internal successors, (23638), 11913 states have internal predecessors, (23638), 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 20:34:30,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11914 states to 11914 states and 23638 transitions. [2023-11-23 20:34:30,950 INFO L78 Accepts]: Start accepts. Automaton has 11914 states and 23638 transitions. Word has length 93 [2023-11-23 20:34:30,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:30,951 INFO L495 AbstractCegarLoop]: Abstraction has 11914 states and 23638 transitions. [2023-11-23 20:34:30,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 20:34:30,951 INFO L276 IsEmpty]: Start isEmpty. Operand 11914 states and 23638 transitions. [2023-11-23 20:34:30,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 20:34:30,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:30,953 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, 1, 1, 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 20:34:30,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 20:34:30,954 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:30,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:30,958 INFO L85 PathProgramCache]: Analyzing trace with hash 527481030, now seen corresponding path program 3 times [2023-11-23 20:34:30,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:30,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673285403] [2023-11-23 20:34:30,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:30,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:31,771 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 20:34:31,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:31,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673285403] [2023-11-23 20:34:31,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673285403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:31,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:31,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 20:34:31,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24823517] [2023-11-23 20:34:31,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:31,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 20:34:31,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:31,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 20:34:31,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-11-23 20:34:31,776 INFO L87 Difference]: Start difference. First operand 11914 states and 23638 transitions. Second operand has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 20:34:35,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:35,632 INFO L93 Difference]: Finished difference Result 17096 states and 33918 transitions. [2023-11-23 20:34:35,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-23 20:34:35,638 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 93 [2023-11-23 20:34:35,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:35,674 INFO L225 Difference]: With dead ends: 17096 [2023-11-23 20:34:35,675 INFO L226 Difference]: Without dead ends: 17096 [2023-11-23 20:34:35,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=436, Invalid=1286, Unknown=0, NotChecked=0, Total=1722 [2023-11-23 20:34:35,677 INFO L413 NwaCegarLoop]: 778 mSDtfsCounter, 1307 mSDsluCounter, 4972 mSDsCounter, 0 mSdLazyCounter, 4047 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 5750 SdHoareTripleChecker+Invalid, 4102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 4047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:35,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 5750 Invalid, 4102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 4047 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-23 20:34:35,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17096 states. [2023-11-23 20:34:36,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17096 to 11939. [2023-11-23 20:34:36,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11939 states, 11860 states have (on average 1.9973861720067454) internal successors, (23689), 11938 states have internal predecessors, (23689), 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 20:34:36,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11939 states to 11939 states and 23689 transitions. [2023-11-23 20:34:36,079 INFO L78 Accepts]: Start accepts. Automaton has 11939 states and 23689 transitions. Word has length 93 [2023-11-23 20:34:36,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:36,080 INFO L495 AbstractCegarLoop]: Abstraction has 11939 states and 23689 transitions. [2023-11-23 20:34:36,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 20:34:36,080 INFO L276 IsEmpty]: Start isEmpty. Operand 11939 states and 23689 transitions. [2023-11-23 20:34:36,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 20:34:36,083 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:36,083 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, 1, 1, 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 20:34:36,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 20:34:36,084 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:36,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:36,084 INFO L85 PathProgramCache]: Analyzing trace with hash 212452284, now seen corresponding path program 4 times [2023-11-23 20:34:36,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:36,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290832581] [2023-11-23 20:34:36,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:36,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:37,049 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 20:34:37,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:37,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290832581] [2023-11-23 20:34:37,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290832581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:37,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:37,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 20:34:37,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978322441] [2023-11-23 20:34:37,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:37,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 20:34:37,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:37,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 20:34:37,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-23 20:34:37,051 INFO L87 Difference]: Start difference. First operand 11939 states and 23689 transitions. Second operand has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 20:34:41,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:41,180 INFO L93 Difference]: Finished difference Result 17149 states and 34024 transitions. [2023-11-23 20:34:41,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-23 20:34:41,185 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 93 [2023-11-23 20:34:41,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:41,212 INFO L225 Difference]: With dead ends: 17149 [2023-11-23 20:34:41,213 INFO L226 Difference]: Without dead ends: 17149 [2023-11-23 20:34:41,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=446, Invalid=1360, Unknown=0, NotChecked=0, Total=1806 [2023-11-23 20:34:41,214 INFO L413 NwaCegarLoop]: 777 mSDtfsCounter, 1427 mSDsluCounter, 5598 mSDsCounter, 0 mSdLazyCounter, 4921 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 6375 SdHoareTripleChecker+Invalid, 4983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:41,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 6375 Invalid, 4983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4921 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-23 20:34:41,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17149 states. [2023-11-23 20:34:41,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17149 to 11941. [2023-11-23 20:34:41,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11941 states, 11862 states have (on average 1.9973866127128646) internal successors, (23693), 11940 states have internal predecessors, (23693), 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 20:34:41,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11941 states to 11941 states and 23693 transitions. [2023-11-23 20:34:41,531 INFO L78 Accepts]: Start accepts. Automaton has 11941 states and 23693 transitions. Word has length 93 [2023-11-23 20:34:41,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:41,531 INFO L495 AbstractCegarLoop]: Abstraction has 11941 states and 23693 transitions. [2023-11-23 20:34:41,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 20:34:41,532 INFO L276 IsEmpty]: Start isEmpty. Operand 11941 states and 23693 transitions. [2023-11-23 20:34:41,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 20:34:41,534 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:41,534 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, 1, 1, 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 20:34:41,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 20:34:41,535 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:41,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:41,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1989195128, now seen corresponding path program 5 times [2023-11-23 20:34:41,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:41,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293755549] [2023-11-23 20:34:41,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:41,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:42,306 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 20:34:42,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:42,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293755549] [2023-11-23 20:34:42,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293755549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:42,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:42,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 20:34:42,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281452430] [2023-11-23 20:34:42,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:42,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 20:34:42,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:42,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 20:34:42,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-23 20:34:42,309 INFO L87 Difference]: Start difference. First operand 11941 states and 23693 transitions. Second operand has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 20:34:45,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:45,712 INFO L93 Difference]: Finished difference Result 17160 states and 34046 transitions. [2023-11-23 20:34:45,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-23 20:34:45,713 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 93 [2023-11-23 20:34:45,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:45,736 INFO L225 Difference]: With dead ends: 17160 [2023-11-23 20:34:45,736 INFO L226 Difference]: Without dead ends: 17160 [2023-11-23 20:34:45,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=459, Invalid=1433, Unknown=0, NotChecked=0, Total=1892 [2023-11-23 20:34:45,737 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 1444 mSDsluCounter, 4921 mSDsCounter, 0 mSdLazyCounter, 3956 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 5696 SdHoareTripleChecker+Invalid, 4034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 3956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:45,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1444 Valid, 5696 Invalid, 4034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 3956 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-23 20:34:45,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17160 states. [2023-11-23 20:34:45,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17160 to 11964. [2023-11-23 20:34:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11964 states, 11885 states have (on average 1.9974758098443417) internal successors, (23740), 11963 states have internal predecessors, (23740), 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 20:34:45,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11964 states to 11964 states and 23740 transitions. [2023-11-23 20:34:45,983 INFO L78 Accepts]: Start accepts. Automaton has 11964 states and 23740 transitions. Word has length 93 [2023-11-23 20:34:45,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:45,984 INFO L495 AbstractCegarLoop]: Abstraction has 11964 states and 23740 transitions. [2023-11-23 20:34:45,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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 20:34:45,984 INFO L276 IsEmpty]: Start isEmpty. Operand 11964 states and 23740 transitions. [2023-11-23 20:34:45,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 20:34:45,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:45,987 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, 1, 1, 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 20:34:45,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 20:34:45,988 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2023-11-23 20:34:45,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:45,988 INFO L85 PathProgramCache]: Analyzing trace with hash 540044102, now seen corresponding path program 6 times [2023-11-23 20:34:45,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:45,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938905391] [2023-11-23 20:34:45,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:45,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:46,697 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 20:34:46,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:46,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938905391] [2023-11-23 20:34:46,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938905391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:46,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:46,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-23 20:34:46,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461416015] [2023-11-23 20:34:46,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:46,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 20:34:46,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:46,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 20:34:46,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-11-23 20:34:46,699 INFO L87 Difference]: Start difference. First operand 11964 states and 23740 transitions. Second operand has 15 states, 14 states have (on average 6.642857142857143) internal successors, (93), 15 states have internal predecessors, (93), 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)