./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_2b-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/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_aac79f36-6558-43f9-aeb4-700e877635ff/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_2b-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/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_aac79f36-6558-43f9-aeb4-700e877635ff/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 ee1ef439d2384e570357ab989c81c348d4e66a30456afde529ceafc93ab03ac3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:15:02,402 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:15:02,514 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-23 21:15:02,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:15:02,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:15:02,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:15:02,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:15:02,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:15:02,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:15:02,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:15:02,578 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:15:02,578 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:15:02,579 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:15:02,579 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:15:02,579 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:15:02,580 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:15:02,580 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:15:02,581 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:15:02,581 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:15:02,582 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:15:02,582 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:15:02,583 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:15:02,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:15:02,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:15:02,585 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:15:02,585 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:15:02,585 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:15:02,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:15:02,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:15:02,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:15:02,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:15:02,588 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:15:02,588 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:15:02,588 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:15:02,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:15:02,589 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:15:02,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:15:02,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:15:02,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:02,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:15:02,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:15:02,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:15:02,592 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:15:02,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:15:02,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:15:02,593 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:15:02,594 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:15:02,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:15:02,594 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_aac79f36-6558-43f9-aeb4-700e877635ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee1ef439d2384e570357ab989c81c348d4e66a30456afde529ceafc93ab03ac3 [2023-11-23 21:15:02,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:15:02,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:15:02,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:15:02,937 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:15:02,938 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:15:02,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-races/race-2_2b-container_of.i [2023-11-23 21:15:06,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:15:06,496 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:15:06,496 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/sv-benchmarks/c/ldv-races/race-2_2b-container_of.i [2023-11-23 21:15:06,539 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/bin/utaipan-verify-mE87zJ7Ire/data/9c53a3bb0/1c745fcc878d4b33913dfc7bd53ad5e5/FLAG1107179c4 [2023-11-23 21:15:06,554 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/bin/utaipan-verify-mE87zJ7Ire/data/9c53a3bb0/1c745fcc878d4b33913dfc7bd53ad5e5 [2023-11-23 21:15:06,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:15:06,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:15:06,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:06,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:15:06,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:15:06,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:06" (1/1) ... [2023-11-23 21:15:06,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d82470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:06, skipping insertion in model container [2023-11-23 21:15:06,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:06" (1/1) ... [2023-11-23 21:15:06,660 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:15:07,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:07,366 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:15:07,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:07,613 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:15:07,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07 WrapperNode [2023-11-23 21:15:07,614 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:07,615 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:07,615 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:15:07,615 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:15:07,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (1/1) ... [2023-11-23 21:15:07,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (1/1) ... [2023-11-23 21:15:07,712 INFO L138 Inliner]: procedures = 244, calls = 42, calls flagged for inlining = 11, calls inlined = 14, statements flattened = 186 [2023-11-23 21:15:07,720 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:07,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:15:07,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:15:07,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:15:07,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (1/1) ... [2023-11-23 21:15:07,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (1/1) ... [2023-11-23 21:15:07,738 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (1/1) ... [2023-11-23 21:15:07,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (1/1) ... [2023-11-23 21:15:07,773 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (1/1) ... [2023-11-23 21:15:07,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (1/1) ... [2023-11-23 21:15:07,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (1/1) ... [2023-11-23 21:15:07,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (1/1) ... [2023-11-23 21:15:07,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:15:07,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:15:07,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:15:07,808 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:15:07,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (1/1) ... [2023-11-23 21:15:07,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:07,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:15:07,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:15:07,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac79f36-6558-43f9-aeb4-700e877635ff/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:15:07,925 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-23 21:15:07,926 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-23 21:15:07,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:15:07,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:15:07,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:15:07,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:15:07,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:15:07,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:15:07,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:15:07,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:15:07,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:15:07,928 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:15:08,257 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:15:08,260 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:15:08,774 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:15:08,789 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:15:08,790 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:15:08,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:08 BoogieIcfgContainer [2023-11-23 21:15:08,792 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:15:08,795 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:15:08,795 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:15:08,799 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:15:08,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:15:06" (1/3) ... [2023-11-23 21:15:08,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63eac2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:08, skipping insertion in model container [2023-11-23 21:15:08,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:07" (2/3) ... [2023-11-23 21:15:08,801 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63eac2cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:08, skipping insertion in model container [2023-11-23 21:15:08,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:08" (3/3) ... [2023-11-23 21:15:08,803 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_2b-container_of.i [2023-11-23 21:15:08,813 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:15:08,825 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:15:08,825 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-23 21:15:08,826 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:15:08,953 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 21:15:09,002 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 291 places, 295 transitions, 604 flow [2023-11-23 21:15:13,598 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 124009 states, 123884 states have (on average 2.9745164831616675) internal successors, (368495), 124008 states have internal predecessors, (368495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:13,630 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:15:13,646 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;@586b6709, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:15:13,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-23 21:15:13,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 124009 states, 123884 states have (on average 2.9745164831616675) internal successors, (368495), 124008 states have internal predecessors, (368495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:13,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 21:15:13,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:13,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:13,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-23 21:15:13,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1080201866, now seen corresponding path program 1 times [2023-11-23 21:15:13,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:13,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947902090] [2023-11-23 21:15:13,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:13,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:15,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:15,401 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:15,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947902090] [2023-11-23 21:15:15,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947902090] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:15,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:15,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:15:15,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981422193] [2023-11-23 21:15:15,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:15,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:15:15,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:15,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:15:15,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:15:15,643 INFO L87 Difference]: Start difference. First operand has 124009 states, 123884 states have (on average 2.9745164831616675) internal successors, (368495), 124008 states have internal predecessors, (368495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:18,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:18,401 INFO L93 Difference]: Finished difference Result 115785 states and 338805 transitions. [2023-11-23 21:15:18,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:15:18,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2023-11-23 21:15:18,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:19,359 INFO L225 Difference]: With dead ends: 115785 [2023-11-23 21:15:19,360 INFO L226 Difference]: Without dead ends: 115250 [2023-11-23 21:15:19,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:15:19,366 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 3 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:19,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 589 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:15:19,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115250 states. [2023-11-23 21:15:23,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115250 to 115250. [2023-11-23 21:15:23,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115250 states, 115098 states have (on average 2.92985108342456) internal successors, (337220), 115249 states have internal predecessors, (337220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:24,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115250 states to 115250 states and 337220 transitions. [2023-11-23 21:15:24,468 INFO L78 Accepts]: Start accepts. Automaton has 115250 states and 337220 transitions. Word has length 36 [2023-11-23 21:15:24,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:24,469 INFO L495 AbstractCegarLoop]: Abstraction has 115250 states and 337220 transitions. [2023-11-23 21:15:24,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:24,469 INFO L276 IsEmpty]: Start isEmpty. Operand 115250 states and 337220 transitions. [2023-11-23 21:15:24,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 21:15:24,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:24,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:24,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:15:24,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-23 21:15:24,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:24,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1968426718, now seen corresponding path program 1 times [2023-11-23 21:15:24,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:24,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293583852] [2023-11-23 21:15:24,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:24,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:25,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:25,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293583852] [2023-11-23 21:15:25,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293583852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:25,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:25,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:15:25,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124960197] [2023-11-23 21:15:25,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:25,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:15:25,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:25,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:15:25,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:15:25,669 INFO L87 Difference]: Start difference. First operand 115250 states and 337220 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:27,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:27,402 INFO L93 Difference]: Finished difference Result 115249 states and 337219 transitions. [2023-11-23 21:15:27,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:15:27,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2023-11-23 21:15:27,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:27,923 INFO L225 Difference]: With dead ends: 115249 [2023-11-23 21:15:27,923 INFO L226 Difference]: Without dead ends: 115249 [2023-11-23 21:15:27,923 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 21:15:27,925 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 2 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:27,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 727 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:15:28,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115249 states. [2023-11-23 21:15:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115249 to 115249. [2023-11-23 21:15:31,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115249 states, 115098 states have (on average 2.9298423951762844) internal successors, (337219), 115248 states have internal predecessors, (337219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:32,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115249 states to 115249 states and 337219 transitions. [2023-11-23 21:15:32,395 INFO L78 Accepts]: Start accepts. Automaton has 115249 states and 337219 transitions. Word has length 44 [2023-11-23 21:15:32,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:32,395 INFO L495 AbstractCegarLoop]: Abstraction has 115249 states and 337219 transitions. [2023-11-23 21:15:32,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:32,396 INFO L276 IsEmpty]: Start isEmpty. Operand 115249 states and 337219 transitions. [2023-11-23 21:15:32,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-23 21:15:32,400 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:32,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:32,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:15:32,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-23 21:15:32,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:32,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1669608471, now seen corresponding path program 1 times [2023-11-23 21:15:32,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:32,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912273082] [2023-11-23 21:15:32,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:32,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:33,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:33,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:33,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912273082] [2023-11-23 21:15:33,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912273082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:33,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:33,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:15:33,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651058896] [2023-11-23 21:15:33,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:33,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:15:33,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:33,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:15:33,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:15:33,064 INFO L87 Difference]: Start difference. First operand 115249 states and 337219 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:34,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:34,948 INFO L93 Difference]: Finished difference Result 121367 states and 355205 transitions. [2023-11-23 21:15:34,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:15:34,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-23 21:15:34,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:35,831 INFO L225 Difference]: With dead ends: 121367 [2023-11-23 21:15:35,831 INFO L226 Difference]: Without dead ends: 121367 [2023-11-23 21:15:35,832 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 21:15:35,839 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 194 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:35,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 730 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:15:36,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121367 states. [2023-11-23 21:15:39,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121367 to 120119. [2023-11-23 21:15:39,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120119 states, 119969 states have (on average 2.9302153056206186) internal successors, (351535), 120118 states have internal predecessors, (351535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:40,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120119 states to 120119 states and 351535 transitions. [2023-11-23 21:15:40,034 INFO L78 Accepts]: Start accepts. Automaton has 120119 states and 351535 transitions. Word has length 67 [2023-11-23 21:15:40,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:40,035 INFO L495 AbstractCegarLoop]: Abstraction has 120119 states and 351535 transitions. [2023-11-23 21:15:40,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:40,035 INFO L276 IsEmpty]: Start isEmpty. Operand 120119 states and 351535 transitions. [2023-11-23 21:15:40,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-23 21:15:40,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:40,040 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] [2023-11-23 21:15:40,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:15:40,040 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-23 21:15:40,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:40,041 INFO L85 PathProgramCache]: Analyzing trace with hash 532656298, now seen corresponding path program 1 times [2023-11-23 21:15:40,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:40,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608532830] [2023-11-23 21:15:40,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:40,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:40,213 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 21:15:40,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:40,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608532830] [2023-11-23 21:15:40,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608532830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:40,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:40,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:15:40,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735901398] [2023-11-23 21:15:40,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:40,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:15:40,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:40,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:15:40,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:15:40,216 INFO L87 Difference]: Start difference. First operand 120119 states and 351535 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:41,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:15:41,787 INFO L93 Difference]: Finished difference Result 120148 states and 351563 transitions. [2023-11-23 21:15:41,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:15:41,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 68 [2023-11-23 21:15:41,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:15:42,270 INFO L225 Difference]: With dead ends: 120148 [2023-11-23 21:15:42,271 INFO L226 Difference]: Without dead ends: 120148 [2023-11-23 21:15:42,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:15:42,283 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 87 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:15:42,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1016 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:15:42,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120148 states. [2023-11-23 21:15:46,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120148 to 120108. [2023-11-23 21:15:46,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120108 states, 119959 states have (on average 2.930367875690861) internal successors, (351524), 120107 states have internal predecessors, (351524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:46,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120108 states to 120108 states and 351524 transitions. [2023-11-23 21:15:46,540 INFO L78 Accepts]: Start accepts. Automaton has 120108 states and 351524 transitions. Word has length 68 [2023-11-23 21:15:46,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:15:46,540 INFO L495 AbstractCegarLoop]: Abstraction has 120108 states and 351524 transitions. [2023-11-23 21:15:46,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:15:46,541 INFO L276 IsEmpty]: Start isEmpty. Operand 120108 states and 351524 transitions. [2023-11-23 21:15:46,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-23 21:15:46,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:46,545 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] [2023-11-23 21:15:46,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:15:46,546 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-23 21:15:46,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:46,546 INFO L85 PathProgramCache]: Analyzing trace with hash -900585563, now seen corresponding path program 1 times [2023-11-23 21:15:46,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:46,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214579852] [2023-11-23 21:15:46,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:46,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:47,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:47,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:47,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214579852] [2023-11-23 21:15:47,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214579852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:47,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:47,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:15:47,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146751457] [2023-11-23 21:15:47,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:47,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:15:47,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:47,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:15:47,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:15:47,842 INFO L87 Difference]: Start difference. First operand 120108 states and 351524 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 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)