./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/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_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/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_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/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 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:12,542 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:12,698 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-23 20:36:12,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:12,716 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:12,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:12,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:12,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:12,775 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:12,782 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:12,783 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:12,784 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:12,784 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:12,787 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:36:12,787 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:12,788 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:12,788 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:36:12,789 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:36:12,790 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:12,790 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:36:12,791 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:36:12,792 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:36:12,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:12,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:12,794 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:36:12,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:36:12,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:36:12,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:12,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:12,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:12,799 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:12,800 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 20:36:12,800 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:36:12,800 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:36:12,801 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:12,801 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:12,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:12,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:12,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:12,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:12,804 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:12,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:12,805 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:36:12,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:36:12,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:12,806 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:12,807 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:12,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:12,807 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_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bf2f5f336333cdf96c271b32cdeb9b70ee932e1c07acf27a63b4425ec902f3e [2023-11-23 20:36:13,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:13,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:13,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:13,254 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:13,255 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:13,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2023-11-23 20:36:16,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:17,194 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:17,195 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/sv-benchmarks/c/goblint-regression/04-mutex_36-trylock_nr.i [2023-11-23 20:36:17,229 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/bin/utaipan-verify-mE87zJ7Ire/data/c8ccf02d2/5e0fb6161b4d4ac8a1d4be192357f3cd/FLAG01d338ea3 [2023-11-23 20:36:17,248 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/bin/utaipan-verify-mE87zJ7Ire/data/c8ccf02d2/5e0fb6161b4d4ac8a1d4be192357f3cd [2023-11-23 20:36:17,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:17,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:17,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:17,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:17,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:17,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:17" (1/1) ... [2023-11-23 20:36:17,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c48d2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:17, skipping insertion in model container [2023-11-23 20:36:17,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:17" (1/1) ... [2023-11-23 20:36:17,373 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:18,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:18,622 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:36:18,779 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:19,073 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:36:19,074 WARN L675 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:36:19,074 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:36:19,075 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:36:19,085 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:36:19,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19 WrapperNode [2023-11-23 20:36:19,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:19,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:19,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:36:19,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:36:19,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (1/1) ... [2023-11-23 20:36:19,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (1/1) ... [2023-11-23 20:36:19,233 INFO L138 Inliner]: procedures = 525, calls = 71, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 151 [2023-11-23 20:36:19,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:19,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:36:19,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:36:19,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:36:19,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (1/1) ... [2023-11-23 20:36:19,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (1/1) ... [2023-11-23 20:36:19,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (1/1) ... [2023-11-23 20:36:19,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (1/1) ... [2023-11-23 20:36:19,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (1/1) ... [2023-11-23 20:36:19,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (1/1) ... [2023-11-23 20:36:19,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (1/1) ... [2023-11-23 20:36:19,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (1/1) ... [2023-11-23 20:36:19,334 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:36:19,335 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:36:19,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:36:19,336 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:36:19,337 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (1/1) ... [2023-11-23 20:36:19,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:19,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:19,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:36:19,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba180bce-b1f0-4e2c-827b-a6dc2c306c3d/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:36:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-11-23 20:36:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-11-23 20:36:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-11-23 20:36:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-11-23 20:36:19,425 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-11-23 20:36:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-23 20:36:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:36:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:36:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 20:36:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:36:19,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:36:19,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:36:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-11-23 20:36:19,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:36:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-11-23 20:36:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 20:36:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:36:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:36:19,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:36:19,431 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 20:36:19,788 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:36:19,791 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:20,255 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:20,320 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:20,320 INFO L309 CfgBuilder]: Removed 19 assume(true) statements. [2023-11-23 20:36:20,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:20 BoogieIcfgContainer [2023-11-23 20:36:20,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:20,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:20,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:20,334 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:20,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:17" (1/3) ... [2023-11-23 20:36:20,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c8ef38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:20, skipping insertion in model container [2023-11-23 20:36:20,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:19" (2/3) ... [2023-11-23 20:36:20,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c8ef38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:20, skipping insertion in model container [2023-11-23 20:36:20,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:20" (3/3) ... [2023-11-23 20:36:20,343 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr.i [2023-11-23 20:36:20,356 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 20:36:20,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:20,379 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-23 20:36:20,380 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 20:36:20,557 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 20:36:20,609 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 265 places, 290 transitions, 594 flow [2023-11-23 20:36:24,706 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 72223 states, 72116 states have (on average 3.3615286482888678) internal successors, (242420), 72222 states have internal predecessors, (242420), 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 20:36:24,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:24,796 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;@355315f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:24,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2023-11-23 20:36:24,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 72223 states, 72116 states have (on average 3.3615286482888678) internal successors, (242420), 72222 states have internal predecessors, (242420), 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 20:36:24,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-23 20:36:24,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:24,959 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] [2023-11-23 20:36:24,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 20:36:24,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:24,968 INFO L85 PathProgramCache]: Analyzing trace with hash -933493537, now seen corresponding path program 1 times [2023-11-23 20:36:24,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:24,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254108549] [2023-11-23 20:36:24,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:24,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:25,500 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 20:36:25,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:25,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254108549] [2023-11-23 20:36:25,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254108549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:25,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:25,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:36:25,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827018989] [2023-11-23 20:36:25,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:25,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:36:25,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:25,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:36:25,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:25,695 INFO L87 Difference]: Start difference. First operand has 72223 states, 72116 states have (on average 3.3615286482888678) internal successors, (242420), 72222 states have internal predecessors, (242420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 20:36:27,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:27,452 INFO L93 Difference]: Finished difference Result 64192 states and 189802 transitions. [2023-11-23 20:36:27,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:36:27,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2023-11-23 20:36:27,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:28,000 INFO L225 Difference]: With dead ends: 64192 [2023-11-23 20:36:28,000 INFO L226 Difference]: Without dead ends: 62140 [2023-11-23 20:36:28,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:28,008 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 1 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:28,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 444 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:36:28,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62140 states. [2023-11-23 20:36:31,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62140 to 62140. [2023-11-23 20:36:31,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62140 states, 61902 states have (on average 2.970307906045039) internal successors, (183868), 62139 states have internal predecessors, (183868), 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 20:36:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62140 states to 62140 states and 183868 transitions. [2023-11-23 20:36:32,982 INFO L78 Accepts]: Start accepts. Automaton has 62140 states and 183868 transitions. Word has length 51 [2023-11-23 20:36:32,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:32,983 INFO L495 AbstractCegarLoop]: Abstraction has 62140 states and 183868 transitions. [2023-11-23 20:36:32,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 20:36:32,984 INFO L276 IsEmpty]: Start isEmpty. Operand 62140 states and 183868 transitions. [2023-11-23 20:36:32,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 20:36:32,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:32,988 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] [2023-11-23 20:36:32,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:36:32,989 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 20:36:32,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:32,990 INFO L85 PathProgramCache]: Analyzing trace with hash 856656402, now seen corresponding path program 1 times [2023-11-23 20:36:32,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:32,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067376697] [2023-11-23 20:36:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:32,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:33,167 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 20:36:33,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:33,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067376697] [2023-11-23 20:36:33,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067376697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:33,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:33,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:36:33,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722160292] [2023-11-23 20:36:33,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:33,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:36:33,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:33,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:36:33,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:33,176 INFO L87 Difference]: Start difference. First operand 62140 states and 183868 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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 20:36:33,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:33,951 INFO L93 Difference]: Finished difference Result 54722 states and 161818 transitions. [2023-11-23 20:36:33,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:36:33,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2023-11-23 20:36:33,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:34,525 INFO L225 Difference]: With dead ends: 54722 [2023-11-23 20:36:34,525 INFO L226 Difference]: Without dead ends: 52718 [2023-11-23 20:36:34,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:34,528 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 154 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:34,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 484 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:36:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52718 states. [2023-11-23 20:36:36,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52718 to 52718. [2023-11-23 20:36:36,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52718 states, 52636 states have (on average 2.962896116726195) internal successors, (155955), 52717 states have internal predecessors, (155955), 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 20:36:37,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52718 states to 52718 states and 155955 transitions. [2023-11-23 20:36:37,625 INFO L78 Accepts]: Start accepts. Automaton has 52718 states and 155955 transitions. Word has length 62 [2023-11-23 20:36:37,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:37,626 INFO L495 AbstractCegarLoop]: Abstraction has 52718 states and 155955 transitions. [2023-11-23 20:36:37,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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 20:36:37,627 INFO L276 IsEmpty]: Start isEmpty. Operand 52718 states and 155955 transitions. [2023-11-23 20:36:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 20:36:37,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:37,634 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] [2023-11-23 20:36:37,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:36:37,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 20:36:37,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:37,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1584624902, now seen corresponding path program 1 times [2023-11-23 20:36:37,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:37,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283868055] [2023-11-23 20:36:37,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:37,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:37,927 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 20:36:37,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:37,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283868055] [2023-11-23 20:36:37,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283868055] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:37,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:37,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:36:37,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137938306] [2023-11-23 20:36:37,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:37,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:36:37,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:37,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:36:37,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:37,940 INFO L87 Difference]: Start difference. First operand 52718 states and 155955 transitions. Second operand has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 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 20:36:38,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:38,467 INFO L93 Difference]: Finished difference Result 51191 states and 151398 transitions. [2023-11-23 20:36:38,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:36:38,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-11-23 20:36:38,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:38,698 INFO L225 Difference]: With dead ends: 51191 [2023-11-23 20:36:38,699 INFO L226 Difference]: Without dead ends: 51191 [2023-11-23 20:36:38,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:38,711 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 157 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:38,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 349 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:36:38,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51191 states. [2023-11-23 20:36:40,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51191 to 50603. [2023-11-23 20:36:40,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50603 states, 50554 states have (on average 2.961368042093603) internal successors, (149709), 50602 states have internal predecessors, (149709), 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 20:36:41,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50603 states to 50603 states and 149709 transitions. [2023-11-23 20:36:41,797 INFO L78 Accepts]: Start accepts. Automaton has 50603 states and 149709 transitions. Word has length 63 [2023-11-23 20:36:41,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:41,799 INFO L495 AbstractCegarLoop]: Abstraction has 50603 states and 149709 transitions. [2023-11-23 20:36:41,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 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 20:36:41,800 INFO L276 IsEmpty]: Start isEmpty. Operand 50603 states and 149709 transitions. [2023-11-23 20:36:41,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 20:36:41,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:41,814 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] [2023-11-23 20:36:41,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:36:41,815 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 20:36:41,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:41,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1538662214, now seen corresponding path program 1 times [2023-11-23 20:36:41,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:41,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961512825] [2023-11-23 20:36:41,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:41,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:42,039 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 20:36:42,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:42,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961512825] [2023-11-23 20:36:42,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961512825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:42,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:42,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:36:42,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626324472] [2023-11-23 20:36:42,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:42,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:36:42,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:42,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:36:42,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:42,043 INFO L87 Difference]: Start difference. First operand 50603 states and 149709 transitions. Second operand has 3 states, 2 states have (on average 36.5) internal successors, (73), 3 states have internal predecessors, (73), 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 20:36:42,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:42,642 INFO L93 Difference]: Finished difference Result 88858 states and 263536 transitions. [2023-11-23 20:36:42,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:36:42,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 36.5) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2023-11-23 20:36:42,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:42,934 INFO L225 Difference]: With dead ends: 88858 [2023-11-23 20:36:42,934 INFO L226 Difference]: Without dead ends: 79978 [2023-11-23 20:36:42,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:42,936 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 154 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:42,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 533 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:36:43,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79978 states. [2023-11-23 20:36:44,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79978 to 45696. [2023-11-23 20:36:44,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45696 states, 45660 states have (on average 2.9512483574244417) internal successors, (134754), 45695 states have internal predecessors, (134754), 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 20:36:45,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45696 states to 45696 states and 134754 transitions. [2023-11-23 20:36:45,330 INFO L78 Accepts]: Start accepts. Automaton has 45696 states and 134754 transitions. Word has length 73 [2023-11-23 20:36:45,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:45,331 INFO L495 AbstractCegarLoop]: Abstraction has 45696 states and 134754 transitions. [2023-11-23 20:36:45,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.5) internal successors, (73), 3 states have internal predecessors, (73), 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 20:36:45,331 INFO L276 IsEmpty]: Start isEmpty. Operand 45696 states and 134754 transitions. [2023-11-23 20:36:45,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 20:36:45,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:45,335 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] [2023-11-23 20:36:45,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:36:45,335 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 20:36:45,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1898563886, now seen corresponding path program 1 times [2023-11-23 20:36:45,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:45,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215202076] [2023-11-23 20:36:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:45,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:46,174 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 20:36:46,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:46,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215202076] [2023-11-23 20:36:46,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215202076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:46,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:46,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:36:46,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553348042] [2023-11-23 20:36:46,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:46,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:36:46,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:46,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:36:46,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:36:46,179 INFO L87 Difference]: Start difference. First operand 45696 states and 134754 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 20:36:46,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:46,557 INFO L93 Difference]: Finished difference Result 43061 states and 126751 transitions. [2023-11-23 20:36:46,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:36:46,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 74 [2023-11-23 20:36:46,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:46,663 INFO L225 Difference]: With dead ends: 43061 [2023-11-23 20:36:46,664 INFO L226 Difference]: Without dead ends: 35413 [2023-11-23 20:36:46,664 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 20:36:46,665 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 432 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:46,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 1633 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:36:46,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35413 states. [2023-11-23 20:36:47,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35413 to 35413. [2023-11-23 20:36:47,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35413 states, 35393 states have (on average 2.948803435707626) internal successors, (104367), 35412 states have internal predecessors, (104367), 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 20:36:48,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35413 states to 35413 states and 104367 transitions. [2023-11-23 20:36:48,054 INFO L78 Accepts]: Start accepts. Automaton has 35413 states and 104367 transitions. Word has length 74 [2023-11-23 20:36:48,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:48,055 INFO L495 AbstractCegarLoop]: Abstraction has 35413 states and 104367 transitions. [2023-11-23 20:36:48,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 20:36:48,056 INFO L276 IsEmpty]: Start isEmpty. Operand 35413 states and 104367 transitions. [2023-11-23 20:36:48,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-23 20:36:48,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:48,062 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] [2023-11-23 20:36:48,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:36:48,063 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 20:36:48,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:48,064 INFO L85 PathProgramCache]: Analyzing trace with hash 337761272, now seen corresponding path program 1 times [2023-11-23 20:36:48,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:48,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887065456] [2023-11-23 20:36:48,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:48,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:48,213 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 20:36:48,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:48,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887065456] [2023-11-23 20:36:48,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887065456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:48,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:48,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:36:48,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611571743] [2023-11-23 20:36:48,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:48,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:36:48,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:48,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:36:48,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:48,219 INFO L87 Difference]: Start difference. First operand 35413 states and 104367 transitions. Second operand has 3 states, 2 states have (on average 39.0) internal successors, (78), 3 states have internal predecessors, (78), 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 20:36:48,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:48,544 INFO L93 Difference]: Finished difference Result 37791 states and 111448 transitions. [2023-11-23 20:36:48,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:36:48,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 39.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2023-11-23 20:36:48,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:48,691 INFO L225 Difference]: With dead ends: 37791 [2023-11-23 20:36:48,691 INFO L226 Difference]: Without dead ends: 31647 [2023-11-23 20:36:48,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:48,693 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 84 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:48,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 478 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:36:48,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31647 states. [2023-11-23 20:36:49,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31647 to 30311. [2023-11-23 20:36:49,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30311 states, 30294 states have (on average 2.9371492704826037) internal successors, (88978), 30310 states have internal predecessors, (88978), 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 20:36:49,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30311 states to 30311 states and 88978 transitions. [2023-11-23 20:36:49,935 INFO L78 Accepts]: Start accepts. Automaton has 30311 states and 88978 transitions. Word has length 78 [2023-11-23 20:36:49,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:49,936 INFO L495 AbstractCegarLoop]: Abstraction has 30311 states and 88978 transitions. [2023-11-23 20:36:49,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 39.0) internal successors, (78), 3 states have internal predecessors, (78), 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 20:36:49,936 INFO L276 IsEmpty]: Start isEmpty. Operand 30311 states and 88978 transitions. [2023-11-23 20:36:49,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-23 20:36:49,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:49,982 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, 1, 1] [2023-11-23 20:36:49,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 20:36:49,982 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 20:36:49,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:49,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1058953584, now seen corresponding path program 1 times [2023-11-23 20:36:49,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:49,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923981273] [2023-11-23 20:36:49,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:49,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:51,074 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 20:36:51,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:51,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923981273] [2023-11-23 20:36:51,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923981273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:51,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:51,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:36:51,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028149993] [2023-11-23 20:36:51,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:51,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:36:51,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:51,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:36:51,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:36:51,078 INFO L87 Difference]: Start difference. First operand 30311 states and 88978 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 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 20:36:51,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:51,326 INFO L93 Difference]: Finished difference Result 30262 states and 88879 transitions. [2023-11-23 20:36:51,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:36:51,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 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 95 [2023-11-23 20:36:51,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:51,382 INFO L225 Difference]: With dead ends: 30262 [2023-11-23 20:36:51,382 INFO L226 Difference]: Without dead ends: 20116 [2023-11-23 20:36:51,382 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 20:36:51,383 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 198 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:51,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 935 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:36:51,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20116 states. [2023-11-23 20:36:52,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20116 to 20116. [2023-11-23 20:36:52,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20116 states, 20103 states have (on average 2.945281798736507) internal successors, (59209), 20115 states have internal predecessors, (59209), 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 20:36:52,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20116 states to 20116 states and 59209 transitions. [2023-11-23 20:36:52,159 INFO L78 Accepts]: Start accepts. Automaton has 20116 states and 59209 transitions. Word has length 95 [2023-11-23 20:36:52,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:52,159 INFO L495 AbstractCegarLoop]: Abstraction has 20116 states and 59209 transitions. [2023-11-23 20:36:52,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 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 20:36:52,159 INFO L276 IsEmpty]: Start isEmpty. Operand 20116 states and 59209 transitions. [2023-11-23 20:36:52,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 20:36:52,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:52,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:52,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 20:36:52,197 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 20:36:52,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1083647760, now seen corresponding path program 1 times [2023-11-23 20:36:52,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:52,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150422909] [2023-11-23 20:36:52,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:52,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:52,511 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 20:36:52,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:52,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150422909] [2023-11-23 20:36:52,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150422909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:52,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:52,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:36:52,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419269800] [2023-11-23 20:36:52,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:52,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:36:52,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:52,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:36:52,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:36:52,514 INFO L87 Difference]: Start difference. First operand 20116 states and 59209 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 20:36:52,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:52,818 INFO L93 Difference]: Finished difference Result 35962 states and 106863 transitions. [2023-11-23 20:36:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 20:36:52,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 104 [2023-11-23 20:36:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:52,939 INFO L225 Difference]: With dead ends: 35962 [2023-11-23 20:36:52,940 INFO L226 Difference]: Without dead ends: 35962 [2023-11-23 20:36:52,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:36:52,941 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 418 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:52,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 790 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:36:53,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35962 states. [2023-11-23 20:36:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35962 to 21940. [2023-11-23 20:36:53,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21940 states, 21927 states have (on average 2.952387467505815) internal successors, (64737), 21939 states have internal predecessors, (64737), 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 20:36:53,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21940 states to 21940 states and 64737 transitions. [2023-11-23 20:36:53,972 INFO L78 Accepts]: Start accepts. Automaton has 21940 states and 64737 transitions. Word has length 104 [2023-11-23 20:36:53,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:53,972 INFO L495 AbstractCegarLoop]: Abstraction has 21940 states and 64737 transitions. [2023-11-23 20:36:53,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 20:36:53,977 INFO L276 IsEmpty]: Start isEmpty. Operand 21940 states and 64737 transitions. [2023-11-23 20:36:54,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 20:36:54,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:54,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:54,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 20:36:54,025 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 20:36:54,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:54,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1779074714, now seen corresponding path program 2 times [2023-11-23 20:36:54,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:54,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695927505] [2023-11-23 20:36:54,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:54,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:54,401 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 20:36:54,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:54,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695927505] [2023-11-23 20:36:54,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695927505] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:54,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:54,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:36:54,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056544307] [2023-11-23 20:36:54,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:54,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:36:54,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:54,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:36:54,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:36:54,405 INFO L87 Difference]: Start difference. First operand 21940 states and 64737 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 20:36:54,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:54,863 INFO L93 Difference]: Finished difference Result 45766 states and 136291 transitions. [2023-11-23 20:36:54,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 20:36:54,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 104 [2023-11-23 20:36:54,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:55,002 INFO L225 Difference]: With dead ends: 45766 [2023-11-23 20:36:55,002 INFO L226 Difference]: Without dead ends: 44854 [2023-11-23 20:36:55,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 20:36:55,003 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 368 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:55,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1089 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:36:55,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44854 states. [2023-11-23 20:36:56,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44854 to 23080. [2023-11-23 20:36:56,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23080 states, 23067 states have (on average 2.9529631074695453) internal successors, (68116), 23079 states have internal predecessors, (68116), 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 20:36:56,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23080 states to 23080 states and 68116 transitions. [2023-11-23 20:36:56,161 INFO L78 Accepts]: Start accepts. Automaton has 23080 states and 68116 transitions. Word has length 104 [2023-11-23 20:36:56,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:56,161 INFO L495 AbstractCegarLoop]: Abstraction has 23080 states and 68116 transitions. [2023-11-23 20:36:56,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 20:36:56,162 INFO L276 IsEmpty]: Start isEmpty. Operand 23080 states and 68116 transitions. [2023-11-23 20:36:56,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-23 20:36:56,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:56,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:56,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 20:36:56,207 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE, monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 20:36:56,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:56,208 INFO L85 PathProgramCache]: Analyzing trace with hash -725049340, now seen corresponding path program 3 times [2023-11-23 20:36:56,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:56,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180723860] [2023-11-23 20:36:56,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:56,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:56,549 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 20:36:56,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:56,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180723860] [2023-11-23 20:36:56,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180723860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:56,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:56,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:36:56,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608530035] [2023-11-23 20:36:56,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:56,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:36:56,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:56,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:36:56,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:36:56,552 INFO L87 Difference]: Start difference. First operand 23080 states and 68116 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 20:36:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:57,061 INFO L93 Difference]: Finished difference Result 45804 states and 136251 transitions. [2023-11-23 20:36:57,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 20:36:57,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 104 [2023-11-23 20:36:57,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:57,259 INFO L225 Difference]: With dead ends: 45804 [2023-11-23 20:36:57,259 INFO L226 Difference]: Without dead ends: 44892 [2023-11-23 20:36:57,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-23 20:36:57,260 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 241 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1304 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:57,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1304 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:36:57,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44892 states.