./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5 --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 406569de44adfe8c1be02a1261bb34c87b6e96e16ab8124ccb5c3636d70e4f02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:02:50,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:02:50,464 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-21 19:02:50,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:02:50,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:02:50,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:02:50,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:02:50,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:02:50,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:02:50,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:02:50,548 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:02:50,548 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:02:50,549 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:02:50,551 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:02:50,552 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:02:50,552 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:02:50,553 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:02:50,558 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:02:50,558 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:02:50,559 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:02:50,559 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:02:50,560 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:02:50,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:02:50,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:02:50,562 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:02:50,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:02:50,563 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:02:50,563 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:02:50,564 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:02:50,564 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:02:50,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:02:50,566 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 19:02:50,579 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:02:50,580 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:02:50,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:02:50,580 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:02:50,580 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:02:50,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:02:50,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:02:50,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:02:50,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:02:50,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:02:50,583 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:02:50,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:02:50,584 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:02:50,584 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:02:50,584 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:02:50,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:02:50,585 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_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 406569de44adfe8c1be02a1261bb34c87b6e96e16ab8124ccb5c3636d70e4f02 [2023-11-21 19:02:50,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:02:50,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:02:50,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:02:50,973 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:02:50,974 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:02:50,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i [2023-11-21 19:02:54,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:02:54,526 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:02:54,526 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i [2023-11-21 19:02:54,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/data/d66ab5592/077cec60bcd040d4bc9b1d537a547037/FLAG783672c38 [2023-11-21 19:02:54,573 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/data/d66ab5592/077cec60bcd040d4bc9b1d537a547037 [2023-11-21 19:02:54,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:02:54,577 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:02:54,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:02:54,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:02:54,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:02:54,586 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:02:54" (1/1) ... [2023-11-21 19:02:54,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e8a19e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:54, skipping insertion in model container [2023-11-21 19:02:54,587 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:02:54" (1/1) ... [2023-11-21 19:02:54,668 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:02:55,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:02:55,440 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:02:55,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:02:55,608 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:02:55,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55 WrapperNode [2023-11-21 19:02:55,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:02:55,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:02:55,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:02:55,610 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:02:55,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (1/1) ... [2023-11-21 19:02:55,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (1/1) ... [2023-11-21 19:02:55,697 INFO L138 Inliner]: procedures = 371, calls = 32, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 245 [2023-11-21 19:02:55,698 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:02:55,699 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:02:55,699 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:02:55,699 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:02:55,709 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (1/1) ... [2023-11-21 19:02:55,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (1/1) ... [2023-11-21 19:02:55,724 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (1/1) ... [2023-11-21 19:02:55,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (1/1) ... [2023-11-21 19:02:55,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (1/1) ... [2023-11-21 19:02:55,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (1/1) ... [2023-11-21 19:02:55,762 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (1/1) ... [2023-11-21 19:02:55,765 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (1/1) ... [2023-11-21 19:02:55,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:02:55,774 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:02:55,774 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:02:55,774 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:02:55,775 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (1/1) ... [2023-11-21 19:02:55,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:02:55,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:02:55,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:02:55,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:02:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:02:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:02:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:02:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 19:02:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:02:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:02:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 19:02:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:02:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:02:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:02:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-21 19:02:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-21 19:02:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:02:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:02:55,864 WARN L212 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 19:02:56,105 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:02:56,107 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:02:56,740 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:02:56,792 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:02:56,792 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 19:02:56,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:02:56 BoogieIcfgContainer [2023-11-21 19:02:56,794 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:02:56,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:02:56,797 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:02:56,806 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:02:56,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:02:54" (1/3) ... [2023-11-21 19:02:56,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2d416d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:02:56, skipping insertion in model container [2023-11-21 19:02:56,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:02:55" (2/3) ... [2023-11-21 19:02:56,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2d416d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:02:56, skipping insertion in model container [2023-11-21 19:02:56,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:02:56" (3/3) ... [2023-11-21 19:02:56,810 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_10-arraylist_rc.i [2023-11-21 19:02:56,821 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 19:02:56,833 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:02:56,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-21 19:02:56,833 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 19:02:56,984 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 19:02:57,041 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 282 places, 284 transitions, 572 flow [2023-11-21 19:02:57,228 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3560 states, 3524 states have (on average 1.9537457434733259) internal successors, (6885), 3559 states have internal predecessors, (6885), 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) [2023-11-21 19:02:57,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:02:57,267 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;@3f4e33e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:02:57,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-21 19:02:57,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 3560 states, 3524 states have (on average 1.9537457434733259) internal successors, (6885), 3559 states have internal predecessors, (6885), 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) [2023-11-21 19:02:57,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-21 19:02:57,293 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:02:57,294 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] [2023-11-21 19:02:57,295 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:02:57,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:02:57,305 INFO L85 PathProgramCache]: Analyzing trace with hash 340414683, now seen corresponding path program 1 times [2023-11-21 19:02:57,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:02:57,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239525691] [2023-11-21 19:02:57,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:02:57,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:02:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:02:57,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:02:57,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:02:57,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239525691] [2023-11-21 19:02:57,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239525691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:02:57,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:02:57,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:02:57,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725668216] [2023-11-21 19:02:57,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:02:57,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:02:57,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:02:57,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:02:57,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:02:57,916 INFO L87 Difference]: Start difference. First operand has 3560 states, 3524 states have (on average 1.9537457434733259) internal successors, (6885), 3559 states have internal predecessors, (6885), 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, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2023-11-21 19:02:58,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:02:58,089 INFO L93 Difference]: Finished difference Result 3564 states and 6847 transitions. [2023-11-21 19:02:58,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:02:58,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2023-11-21 19:02:58,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:02:58,160 INFO L225 Difference]: With dead ends: 3564 [2023-11-21 19:02:58,160 INFO L226 Difference]: Without dead ends: 3553 [2023-11-21 19:02:58,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:02:58,168 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 3 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:02:58,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 536 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:02:58,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3553 states. [2023-11-21 19:02:58,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3553 to 3550. [2023-11-21 19:02:58,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 3511 states have (on average 1.9433209911706066) internal successors, (6823), 3549 states have internal predecessors, (6823), 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) [2023-11-21 19:02:58,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 6823 transitions. [2023-11-21 19:02:58,404 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 6823 transitions. Word has length 41 [2023-11-21 19:02:58,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:02:58,406 INFO L495 AbstractCegarLoop]: Abstraction has 3550 states and 6823 transitions. [2023-11-21 19:02:58,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2023-11-21 19:02:58,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 6823 transitions. [2023-11-21 19:02:58,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 19:02:58,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:02:58,418 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] [2023-11-21 19:02:58,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:02:58,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:02:58,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:02:58,420 INFO L85 PathProgramCache]: Analyzing trace with hash 400772245, now seen corresponding path program 1 times [2023-11-21 19:02:58,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:02:58,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876760097] [2023-11-21 19:02:58,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:02:58,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:02:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:02:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:02:58,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:02:58,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876760097] [2023-11-21 19:02:58,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876760097] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:02:58,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400590683] [2023-11-21 19:02:58,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:02:58,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:02:58,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:02:58,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:02:58,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 19:02:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:02:58,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 19:02:58,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:02:58,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:02:58,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:02:58,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:02:58,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400590683] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:02:58,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [318264130] [2023-11-21 19:02:59,008 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 19:02:59,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:02:59,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-21 19:02:59,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472202036] [2023-11-21 19:02:59,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:02:59,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 19:02:59,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:02:59,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 19:02:59,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-21 19:02:59,014 INFO L87 Difference]: Start difference. First operand 3550 states and 6823 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:02:59,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:02:59,234 INFO L93 Difference]: Finished difference Result 3560 states and 6833 transitions. [2023-11-21 19:02:59,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 19:02:59,236 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-11-21 19:02:59,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:02:59,280 INFO L225 Difference]: With dead ends: 3560 [2023-11-21 19:02:59,280 INFO L226 Difference]: Without dead ends: 3560 [2023-11-21 19:02:59,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-11-21 19:02:59,283 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 10 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:02:59,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1855 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:02:59,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2023-11-21 19:02:59,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 3560. [2023-11-21 19:02:59,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3560 states, 3521 states have (on average 1.9406418631070719) internal successors, (6833), 3559 states have internal predecessors, (6833), 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) [2023-11-21 19:02:59,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3560 states to 3560 states and 6833 transitions. [2023-11-21 19:02:59,424 INFO L78 Accepts]: Start accepts. Automaton has 3560 states and 6833 transitions. Word has length 46 [2023-11-21 19:02:59,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:02:59,425 INFO L495 AbstractCegarLoop]: Abstraction has 3560 states and 6833 transitions. [2023-11-21 19:02:59,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:02:59,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3560 states and 6833 transitions. [2023-11-21 19:02:59,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-21 19:02:59,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:02:59,428 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:02:59,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-21 19:02:59,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:02:59,643 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:02:59,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:02:59,644 INFO L85 PathProgramCache]: Analyzing trace with hash -266751915, now seen corresponding path program 2 times [2023-11-21 19:02:59,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:02:59,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843116854] [2023-11-21 19:02:59,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:02:59,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:02:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:02:59,856 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:02:59,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:02:59,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843116854] [2023-11-21 19:02:59,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843116854] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:02:59,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777356635] [2023-11-21 19:02:59,857 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 19:02:59,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:02:59,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:02:59,858 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:02:59,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 19:02:59,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-21 19:02:59,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 19:02:59,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 19:02:59,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:03:00,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 19:03:00,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-21 19:03:00,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:03:00,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-21 19:03:00,162 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:03:00,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-21 19:03:00,199 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 19:03:00,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:03:00,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777356635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:00,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 19:03:00,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-21 19:03:00,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514692828] [2023-11-21 19:03:00,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:00,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:03:00,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:00,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:03:00,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-21 19:03:00,203 INFO L87 Difference]: Start difference. First operand 3560 states and 6833 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2023-11-21 19:03:00,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:00,592 INFO L93 Difference]: Finished difference Result 3558 states and 6831 transitions. [2023-11-21 19:03:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:03:00,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-11-21 19:03:00,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:00,623 INFO L225 Difference]: With dead ends: 3558 [2023-11-21 19:03:00,623 INFO L226 Difference]: Without dead ends: 3558 [2023-11-21 19:03:00,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-21 19:03:00,632 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 4 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:00,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 561 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 19:03:00,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2023-11-21 19:03:00,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 3558. [2023-11-21 19:03:00,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3558 states, 3521 states have (on average 1.9400738426583357) internal successors, (6831), 3557 states have internal predecessors, (6831), 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) [2023-11-21 19:03:00,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3558 states to 3558 states and 6831 transitions. [2023-11-21 19:03:00,761 INFO L78 Accepts]: Start accepts. Automaton has 3558 states and 6831 transitions. Word has length 56 [2023-11-21 19:03:00,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:00,762 INFO L495 AbstractCegarLoop]: Abstraction has 3558 states and 6831 transitions. [2023-11-21 19:03:00,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2023-11-21 19:03:00,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3558 states and 6831 transitions. [2023-11-21 19:03:00,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-21 19:03:00,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:00,765 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:00,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 19:03:00,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:00,979 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:00,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:00,980 INFO L85 PathProgramCache]: Analyzing trace with hash -946276348, now seen corresponding path program 1 times [2023-11-21 19:03:00,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:00,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342973830] [2023-11-21 19:03:00,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:00,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:01,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-21 19:03:01,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:01,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342973830] [2023-11-21 19:03:01,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342973830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:01,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:03:01,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:03:01,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934190273] [2023-11-21 19:03:01,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:01,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:03:01,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:01,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:03:01,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:03:01,052 INFO L87 Difference]: Start difference. First operand 3558 states and 6831 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-21 19:03:01,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:01,145 INFO L93 Difference]: Finished difference Result 3669 states and 6942 transitions. [2023-11-21 19:03:01,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:03:01,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 57 [2023-11-21 19:03:01,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:01,171 INFO L225 Difference]: With dead ends: 3669 [2023-11-21 19:03:01,172 INFO L226 Difference]: Without dead ends: 3669 [2023-11-21 19:03:01,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:03:01,173 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 110 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:01,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 504 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:03:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3669 states. [2023-11-21 19:03:01,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3669 to 3559. [2023-11-21 19:03:01,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3559 states, 3522 states have (on average 1.9398069278818852) internal successors, (6832), 3558 states have internal predecessors, (6832), 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) [2023-11-21 19:03:01,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3559 states to 3559 states and 6832 transitions. [2023-11-21 19:03:01,304 INFO L78 Accepts]: Start accepts. Automaton has 3559 states and 6832 transitions. Word has length 57 [2023-11-21 19:03:01,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:01,304 INFO L495 AbstractCegarLoop]: Abstraction has 3559 states and 6832 transitions. [2023-11-21 19:03:01,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-21 19:03:01,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3559 states and 6832 transitions. [2023-11-21 19:03:01,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-21 19:03:01,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:01,307 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:01,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 19:03:01,308 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:01,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:01,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1720823033, now seen corresponding path program 1 times [2023-11-21 19:03:01,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:01,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108866167] [2023-11-21 19:03:01,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:01,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:01,586 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:03:01,587 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:01,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108866167] [2023-11-21 19:03:01,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108866167] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:03:01,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076551145] [2023-11-21 19:03:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:01,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:01,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:03:01,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:03:01,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 19:03:01,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:01,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 19:03:01,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:03:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:03:01,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:03:01,939 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:03:01,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076551145] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:03:01,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [636276930] [2023-11-21 19:03:01,949 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 19:03:01,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:03:01,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-21 19:03:01,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983227142] [2023-11-21 19:03:01,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:03:01,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-21 19:03:01,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:01,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-21 19:03:01,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-21 19:03:01,953 INFO L87 Difference]: Start difference. First operand 3559 states and 6832 transitions. Second operand has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 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) [2023-11-21 19:03:02,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:02,223 INFO L93 Difference]: Finished difference Result 3579 states and 6852 transitions. [2023-11-21 19:03:02,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:03:02,224 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 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 64 [2023-11-21 19:03:02,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:02,249 INFO L225 Difference]: With dead ends: 3579 [2023-11-21 19:03:02,250 INFO L226 Difference]: Without dead ends: 3579 [2023-11-21 19:03:02,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2023-11-21 19:03:02,251 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 33 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:02,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1326 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:03:02,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3579 states. [2023-11-21 19:03:02,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3579 to 3579. [2023-11-21 19:03:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3579 states, 3542 states have (on average 1.9345002823263693) internal successors, (6852), 3578 states have internal predecessors, (6852), 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) [2023-11-21 19:03:02,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3579 states to 3579 states and 6852 transitions. [2023-11-21 19:03:02,372 INFO L78 Accepts]: Start accepts. Automaton has 3579 states and 6852 transitions. Word has length 64 [2023-11-21 19:03:02,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:02,372 INFO L495 AbstractCegarLoop]: Abstraction has 3579 states and 6852 transitions. [2023-11-21 19:03:02,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 18 states have internal predecessors, (86), 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) [2023-11-21 19:03:02,372 INFO L276 IsEmpty]: Start isEmpty. Operand 3579 states and 6852 transitions. [2023-11-21 19:03:02,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-21 19:03:02,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:02,377 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:02,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 19:03:02,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:02,591 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:02,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:02,592 INFO L85 PathProgramCache]: Analyzing trace with hash -312613767, now seen corresponding path program 2 times [2023-11-21 19:03:02,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:02,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149301731] [2023-11-21 19:03:02,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:02,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:03:03,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:03,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149301731] [2023-11-21 19:03:03,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149301731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:03:03,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833424522] [2023-11-21 19:03:03,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 19:03:03,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:03,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:03:03,082 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:03:03,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 19:03:03,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-21 19:03:03,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 19:03:03,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 19:03:03,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:03:03,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-21 19:03:03,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-21 19:03:03,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:03:03,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-21 19:03:03,345 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:03:03,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-21 19:03:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-21 19:03:03,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:03:03,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833424522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:03,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 19:03:03,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-21 19:03:03,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257246506] [2023-11-21 19:03:03,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:03,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:03:03,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:03,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:03:03,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-21 19:03:03,390 INFO L87 Difference]: Start difference. First operand 3579 states and 6852 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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) [2023-11-21 19:03:03,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:03,687 INFO L93 Difference]: Finished difference Result 3577 states and 6850 transitions. [2023-11-21 19:03:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:03:03,688 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 84 [2023-11-21 19:03:03,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:03,720 INFO L225 Difference]: With dead ends: 3577 [2023-11-21 19:03:03,720 INFO L226 Difference]: Without dead ends: 3577 [2023-11-21 19:03:03,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-21 19:03:03,722 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 2 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:03,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 559 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 19:03:03,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2023-11-21 19:03:03,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 3577. [2023-11-21 19:03:03,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3577 states, 3542 states have (on average 1.9339356295878034) internal successors, (6850), 3576 states have internal predecessors, (6850), 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) [2023-11-21 19:03:03,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3577 states to 3577 states and 6850 transitions. [2023-11-21 19:03:03,832 INFO L78 Accepts]: Start accepts. Automaton has 3577 states and 6850 transitions. Word has length 84 [2023-11-21 19:03:03,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:03,833 INFO L495 AbstractCegarLoop]: Abstraction has 3577 states and 6850 transitions. [2023-11-21 19:03:03,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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) [2023-11-21 19:03:03,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3577 states and 6850 transitions. [2023-11-21 19:03:03,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-21 19:03:03,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:03,834 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:03,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 19:03:04,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:04,047 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:04,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:04,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1850098573, now seen corresponding path program 1 times [2023-11-21 19:03:04,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:04,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652885102] [2023-11-21 19:03:04,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:04,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:03:04,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:04,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652885102] [2023-11-21 19:03:04,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652885102] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:03:04,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125162494] [2023-11-21 19:03:04,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:04,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:04,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:03:04,525 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:03:04,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 19:03:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:04,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-21 19:03:04,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:03:04,800 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:03:04,801 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:03:05,025 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:03:05,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125162494] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:03:05,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1492798850] [2023-11-21 19:03:05,028 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Construction of path programs is not yet supported for concurrent programs at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 19:03:05,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:03:05,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-21 19:03:05,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257706619] [2023-11-21 19:03:05,029 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:03:05,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-21 19:03:05,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:05,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-21 19:03:05,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-21 19:03:05,032 INFO L87 Difference]: Start difference. First operand 3577 states and 6850 transitions. Second operand has 23 states, 23 states have (on average 4.913043478260869) internal successors, (113), 23 states have internal predecessors, (113), 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) [2023-11-21 19:03:05,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:05,388 INFO L93 Difference]: Finished difference Result 3592 states and 6865 transitions. [2023-11-21 19:03:05,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:03:05,389 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.913043478260869) internal successors, (113), 23 states have internal predecessors, (113), 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 96 [2023-11-21 19:03:05,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:05,411 INFO L225 Difference]: With dead ends: 3592 [2023-11-21 19:03:05,411 INFO L226 Difference]: Without dead ends: 3592 [2023-11-21 19:03:05,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 175 SyntacticMatches, 11 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=524, Invalid=1116, Unknown=0, NotChecked=0, Total=1640 [2023-11-21 19:03:05,413 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 56 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1314 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:05,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1314 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:03:05,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3592 states. [2023-11-21 19:03:05,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3592 to 3592. [2023-11-21 19:03:05,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 3557 states have (on average 1.9299971886421141) internal successors, (6865), 3591 states have internal predecessors, (6865), 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) [2023-11-21 19:03:05,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 6865 transitions. [2023-11-21 19:03:05,555 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 6865 transitions. Word has length 96 [2023-11-21 19:03:05,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:05,556 INFO L495 AbstractCegarLoop]: Abstraction has 3592 states and 6865 transitions. [2023-11-21 19:03:05,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.913043478260869) internal successors, (113), 23 states have internal predecessors, (113), 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) [2023-11-21 19:03:05,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 6865 transitions. [2023-11-21 19:03:05,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-21 19:03:05,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:05,562 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:05,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-21 19:03:05,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:05,763 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:05,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:05,764 INFO L85 PathProgramCache]: Analyzing trace with hash 363789241, now seen corresponding path program 2 times [2023-11-21 19:03:05,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:05,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051108800] [2023-11-21 19:03:05,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:05,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:06,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:06,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051108800] [2023-11-21 19:03:06,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051108800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:06,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:03:06,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:03:06,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824527520] [2023-11-21 19:03:06,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:06,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:03:06,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:06,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:03:06,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:03:06,524 INFO L87 Difference]: Start difference. First operand 3592 states and 6865 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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) [2023-11-21 19:03:06,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:06,705 INFO L93 Difference]: Finished difference Result 3591 states and 6864 transitions. [2023-11-21 19:03:06,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:03:06,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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 111 [2023-11-21 19:03:06,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:06,716 INFO L225 Difference]: With dead ends: 3591 [2023-11-21 19:03:06,716 INFO L226 Difference]: Without dead ends: 3591 [2023-11-21 19:03:06,716 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 [2023-11-21 19:03:06,718 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 6 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:06,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 412 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:03:06,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3591 states. [2023-11-21 19:03:06,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3591 to 3591. [2023-11-21 19:03:06,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3557 states have (on average 1.9297160528535282) internal successors, (6864), 3590 states have internal predecessors, (6864), 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) [2023-11-21 19:03:06,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 6864 transitions. [2023-11-21 19:03:06,814 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 6864 transitions. Word has length 111 [2023-11-21 19:03:06,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:06,814 INFO L495 AbstractCegarLoop]: Abstraction has 3591 states and 6864 transitions. [2023-11-21 19:03:06,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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) [2023-11-21 19:03:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 6864 transitions. [2023-11-21 19:03:06,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-21 19:03:06,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:06,817 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:06,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 19:03:06,817 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:06,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:06,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2144349039, now seen corresponding path program 1 times [2023-11-21 19:03:06,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:06,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045196088] [2023-11-21 19:03:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:06,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:07,720 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:07,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:07,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045196088] [2023-11-21 19:03:07,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045196088] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:07,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:03:07,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:03:07,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027138019] [2023-11-21 19:03:07,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:07,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:03:07,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:07,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:03:07,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:03:07,724 INFO L87 Difference]: Start difference. First operand 3591 states and 6864 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 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) [2023-11-21 19:03:08,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:08,065 INFO L93 Difference]: Finished difference Result 3590 states and 6863 transitions. [2023-11-21 19:03:08,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:03:08,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 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 146 [2023-11-21 19:03:08,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:08,075 INFO L225 Difference]: With dead ends: 3590 [2023-11-21 19:03:08,075 INFO L226 Difference]: Without dead ends: 3590 [2023-11-21 19:03:08,075 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 [2023-11-21 19:03:08,076 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 24 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:08,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 682 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 19:03:08,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2023-11-21 19:03:08,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 3590. [2023-11-21 19:03:08,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3590 states, 3557 states have (on average 1.9294349170649423) internal successors, (6863), 3589 states have internal predecessors, (6863), 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) [2023-11-21 19:03:08,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 6863 transitions. [2023-11-21 19:03:08,169 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 6863 transitions. Word has length 146 [2023-11-21 19:03:08,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:08,170 INFO L495 AbstractCegarLoop]: Abstraction has 3590 states and 6863 transitions. [2023-11-21 19:03:08,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 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) [2023-11-21 19:03:08,170 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 6863 transitions. [2023-11-21 19:03:08,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-21 19:03:08,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:08,172 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:08,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 19:03:08,173 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:08,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:08,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1360631682, now seen corresponding path program 1 times [2023-11-21 19:03:08,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:08,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687365292] [2023-11-21 19:03:08,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:08,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:08,939 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:08,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:08,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687365292] [2023-11-21 19:03:08,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687365292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:08,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:03:08,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:03:08,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370315069] [2023-11-21 19:03:08,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:08,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:03:08,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:08,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:03:08,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:03:08,942 INFO L87 Difference]: Start difference. First operand 3590 states and 6863 transitions. Second operand has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 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) [2023-11-21 19:03:09,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:09,271 INFO L93 Difference]: Finished difference Result 3589 states and 6862 transitions. [2023-11-21 19:03:09,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:03:09,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 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 156 [2023-11-21 19:03:09,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:09,281 INFO L225 Difference]: With dead ends: 3589 [2023-11-21 19:03:09,282 INFO L226 Difference]: Without dead ends: 3589 [2023-11-21 19:03:09,282 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 [2023-11-21 19:03:09,283 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 5 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:09,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 731 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 19:03:09,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3589 states. [2023-11-21 19:03:09,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3589 to 3589. [2023-11-21 19:03:09,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3589 states, 3557 states have (on average 1.9291537812763564) internal successors, (6862), 3588 states have internal predecessors, (6862), 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) [2023-11-21 19:03:09,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3589 states to 3589 states and 6862 transitions. [2023-11-21 19:03:09,387 INFO L78 Accepts]: Start accepts. Automaton has 3589 states and 6862 transitions. Word has length 156 [2023-11-21 19:03:09,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:09,387 INFO L495 AbstractCegarLoop]: Abstraction has 3589 states and 6862 transitions. [2023-11-21 19:03:09,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.2) internal successors, (111), 6 states have internal predecessors, (111), 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) [2023-11-21 19:03:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand 3589 states and 6862 transitions. [2023-11-21 19:03:09,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-21 19:03:09,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:09,390 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:09,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 19:03:09,390 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:09,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:09,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1527928986, now seen corresponding path program 1 times [2023-11-21 19:03:09,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:09,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111059969] [2023-11-21 19:03:09,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:09,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:10,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:10,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111059969] [2023-11-21 19:03:10,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111059969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:10,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:03:10,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:03:10,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783140359] [2023-11-21 19:03:10,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:10,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:03:10,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:10,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:03:10,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:03:10,212 INFO L87 Difference]: Start difference. First operand 3589 states and 6862 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2023-11-21 19:03:10,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:10,452 INFO L93 Difference]: Finished difference Result 3588 states and 6861 transitions. [2023-11-21 19:03:10,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:03:10,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 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 165 [2023-11-21 19:03:10,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:10,464 INFO L225 Difference]: With dead ends: 3588 [2023-11-21 19:03:10,464 INFO L226 Difference]: Without dead ends: 3588 [2023-11-21 19:03:10,465 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 [2023-11-21 19:03:10,465 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 2 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:10,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 577 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:03:10,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3588 states. [2023-11-21 19:03:10,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3588 to 3588. [2023-11-21 19:03:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3588 states, 3557 states have (on average 1.9288726454877705) internal successors, (6861), 3587 states have internal predecessors, (6861), 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) [2023-11-21 19:03:10,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 6861 transitions. [2023-11-21 19:03:10,552 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 6861 transitions. Word has length 165 [2023-11-21 19:03:10,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:10,552 INFO L495 AbstractCegarLoop]: Abstraction has 3588 states and 6861 transitions. [2023-11-21 19:03:10,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2023-11-21 19:03:10,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 6861 transitions. [2023-11-21 19:03:10,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-21 19:03:10,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:10,555 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:10,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 19:03:10,556 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:10,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:10,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1221561647, now seen corresponding path program 1 times [2023-11-21 19:03:10,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:10,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976176278] [2023-11-21 19:03:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:10,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:11,369 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:11,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:11,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976176278] [2023-11-21 19:03:11,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976176278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:11,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:03:11,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:03:11,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836461637] [2023-11-21 19:03:11,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:11,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:03:11,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:11,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:03:11,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:03:11,373 INFO L87 Difference]: Start difference. First operand 3588 states and 6861 transitions. Second operand has 6 states, 5 states have (on average 25.6) internal successors, (128), 6 states have internal predecessors, (128), 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) [2023-11-21 19:03:11,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:11,641 INFO L93 Difference]: Finished difference Result 3587 states and 6860 transitions. [2023-11-21 19:03:11,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:03:11,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.6) internal successors, (128), 6 states have internal predecessors, (128), 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 173 [2023-11-21 19:03:11,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:11,651 INFO L225 Difference]: With dead ends: 3587 [2023-11-21 19:03:11,651 INFO L226 Difference]: Without dead ends: 3587 [2023-11-21 19:03:11,652 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 [2023-11-21 19:03:11,653 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 2 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:11,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 576 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:03:11,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3587 states. [2023-11-21 19:03:11,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3587 to 3587. [2023-11-21 19:03:11,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3587 states, 3557 states have (on average 1.9285915096991848) internal successors, (6860), 3586 states have internal predecessors, (6860), 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) [2023-11-21 19:03:11,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3587 states to 3587 states and 6860 transitions. [2023-11-21 19:03:11,739 INFO L78 Accepts]: Start accepts. Automaton has 3587 states and 6860 transitions. Word has length 173 [2023-11-21 19:03:11,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:11,740 INFO L495 AbstractCegarLoop]: Abstraction has 3587 states and 6860 transitions. [2023-11-21 19:03:11,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.6) internal successors, (128), 6 states have internal predecessors, (128), 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) [2023-11-21 19:03:11,740 INFO L276 IsEmpty]: Start isEmpty. Operand 3587 states and 6860 transitions. [2023-11-21 19:03:11,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-21 19:03:11,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:11,743 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:11,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 19:03:11,744 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:11,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:11,744 INFO L85 PathProgramCache]: Analyzing trace with hash -546960638, now seen corresponding path program 1 times [2023-11-21 19:03:11,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:11,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439116837] [2023-11-21 19:03:11,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:11,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:12,001 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:12,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:12,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439116837] [2023-11-21 19:03:12,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439116837] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:03:12,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577511773] [2023-11-21 19:03:12,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:12,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:12,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:03:12,007 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:03:12,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 19:03:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:12,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 19:03:12,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:03:12,448 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:12,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:03:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:12,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577511773] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:03:12,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1465615878] [2023-11-21 19:03:12,622 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 19:03:12,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:03:12,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-21 19:03:12,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33341365] [2023-11-21 19:03:12,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:03:12,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 19:03:12,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:12,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 19:03:12,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-21 19:03:12,628 INFO L87 Difference]: Start difference. First operand 3587 states and 6860 transitions. Second operand has 10 states, 10 states have (on average 36.4) internal successors, (364), 10 states have internal predecessors, (364), 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) [2023-11-21 19:03:12,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:12,782 INFO L93 Difference]: Finished difference Result 3797 states and 7070 transitions. [2023-11-21 19:03:12,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 19:03:12,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 36.4) internal successors, (364), 10 states have internal predecessors, (364), 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 197 [2023-11-21 19:03:12,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:12,792 INFO L225 Difference]: With dead ends: 3797 [2023-11-21 19:03:12,792 INFO L226 Difference]: Without dead ends: 3797 [2023-11-21 19:03:12,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-11-21 19:03:12,793 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 212 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1320 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:12,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1320 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 19:03:12,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3797 states. [2023-11-21 19:03:12,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3797 to 3797. [2023-11-21 19:03:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3797 states, 3767 states have (on average 1.8768250597292275) internal successors, (7070), 3796 states have internal predecessors, (7070), 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) [2023-11-21 19:03:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 7070 transitions. [2023-11-21 19:03:12,917 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 7070 transitions. Word has length 197 [2023-11-21 19:03:12,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:12,917 INFO L495 AbstractCegarLoop]: Abstraction has 3797 states and 7070 transitions. [2023-11-21 19:03:12,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 36.4) internal successors, (364), 10 states have internal predecessors, (364), 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) [2023-11-21 19:03:12,918 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 7070 transitions. [2023-11-21 19:03:12,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2023-11-21 19:03:12,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:12,925 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:12,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 19:03:13,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:13,144 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:13,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:13,145 INFO L85 PathProgramCache]: Analyzing trace with hash 25044610, now seen corresponding path program 2 times [2023-11-21 19:03:13,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:13,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133374083] [2023-11-21 19:03:13,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:13,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:13,946 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:13,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:13,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133374083] [2023-11-21 19:03:13,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133374083] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:03:13,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662422149] [2023-11-21 19:03:13,947 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 19:03:13,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:13,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:03:13,949 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:03:13,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 19:03:14,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-21 19:03:14,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 19:03:14,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-21 19:03:14,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:03:14,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-21 19:03:14,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2023-11-21 19:03:14,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:03:14,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2023-11-21 19:03:14,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:03:14,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2023-11-21 19:03:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2023-11-21 19:03:14,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:03:14,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662422149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:14,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 19:03:14,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-21 19:03:14,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192103038] [2023-11-21 19:03:14,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:14,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:03:14,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:14,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:03:14,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-21 19:03:14,470 INFO L87 Difference]: Start difference. First operand 3797 states and 7070 transitions. Second operand has 6 states, 5 states have (on average 30.4) internal successors, (152), 6 states have internal predecessors, (152), 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) [2023-11-21 19:03:15,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:15,201 INFO L93 Difference]: Finished difference Result 5673 states and 10782 transitions. [2023-11-21 19:03:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:03:15,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 30.4) internal successors, (152), 6 states have internal predecessors, (152), 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 407 [2023-11-21 19:03:15,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:15,216 INFO L225 Difference]: With dead ends: 5673 [2023-11-21 19:03:15,217 INFO L226 Difference]: Without dead ends: 5673 [2023-11-21 19:03:15,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-21 19:03:15,217 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 278 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:15,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 1058 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-21 19:03:15,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5673 states. [2023-11-21 19:03:15,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5673 to 4037. [2023-11-21 19:03:15,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4037 states, 4008 states have (on average 1.8827345309381238) internal successors, (7546), 4036 states have internal predecessors, (7546), 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) [2023-11-21 19:03:15,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4037 states to 4037 states and 7546 transitions. [2023-11-21 19:03:15,317 INFO L78 Accepts]: Start accepts. Automaton has 4037 states and 7546 transitions. Word has length 407 [2023-11-21 19:03:15,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:15,318 INFO L495 AbstractCegarLoop]: Abstraction has 4037 states and 7546 transitions. [2023-11-21 19:03:15,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 30.4) internal successors, (152), 6 states have internal predecessors, (152), 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) [2023-11-21 19:03:15,319 INFO L276 IsEmpty]: Start isEmpty. Operand 4037 states and 7546 transitions. [2023-11-21 19:03:15,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2023-11-21 19:03:15,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:15,327 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:15,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 19:03:15,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:15,548 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:15,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:15,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1067711899, now seen corresponding path program 1 times [2023-11-21 19:03:15,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:15,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017291736] [2023-11-21 19:03:15,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:15,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:16,306 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:16,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:16,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017291736] [2023-11-21 19:03:16,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017291736] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:03:16,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876044003] [2023-11-21 19:03:16,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:16,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:16,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:03:16,315 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:03:16,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 19:03:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:16,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 1511 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 19:03:16,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:03:17,311 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:17,311 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:03:17,899 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:17,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876044003] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:03:17,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [625299183] [2023-11-21 19:03:17,907 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 19:03:17,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:03:17,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-21 19:03:17,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470927509] [2023-11-21 19:03:17,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:03:17,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-21 19:03:17,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:17,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-21 19:03:17,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-21 19:03:17,913 INFO L87 Difference]: Start difference. First operand 4037 states and 7546 transitions. Second operand has 18 states, 18 states have (on average 43.888888888888886) internal successors, (790), 18 states have internal predecessors, (790), 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) [2023-11-21 19:03:18,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:18,291 INFO L93 Difference]: Finished difference Result 4457 states and 7966 transitions. [2023-11-21 19:03:18,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-21 19:03:18,292 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 43.888888888888886) internal successors, (790), 18 states have internal predecessors, (790), 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 413 [2023-11-21 19:03:18,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:18,307 INFO L225 Difference]: With dead ends: 4457 [2023-11-21 19:03:18,308 INFO L226 Difference]: Without dead ends: 4457 [2023-11-21 19:03:18,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2023-11-21 19:03:18,310 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 225 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:18,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 2570 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 19:03:18,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4457 states. [2023-11-21 19:03:18,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4457 to 4457. [2023-11-21 19:03:18,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4457 states, 4428 states have (on average 1.7990063233965674) internal successors, (7966), 4456 states have internal predecessors, (7966), 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) [2023-11-21 19:03:18,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4457 states to 4457 states and 7966 transitions. [2023-11-21 19:03:18,403 INFO L78 Accepts]: Start accepts. Automaton has 4457 states and 7966 transitions. Word has length 413 [2023-11-21 19:03:18,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:18,404 INFO L495 AbstractCegarLoop]: Abstraction has 4457 states and 7966 transitions. [2023-11-21 19:03:18,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 43.888888888888886) internal successors, (790), 18 states have internal predecessors, (790), 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) [2023-11-21 19:03:18,405 INFO L276 IsEmpty]: Start isEmpty. Operand 4457 states and 7966 transitions. [2023-11-21 19:03:18,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2023-11-21 19:03:18,429 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:18,430 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:18,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 19:03:18,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-21 19:03:18,651 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:18,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:18,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1061463707, now seen corresponding path program 2 times [2023-11-21 19:03:18,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:18,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588176868] [2023-11-21 19:03:18,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:18,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:21,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:21,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:21,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588176868] [2023-11-21 19:03:21,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588176868] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:03:21,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385185958] [2023-11-21 19:03:21,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 19:03:21,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:21,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:03:21,261 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:03:21,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 19:03:21,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-11-21 19:03:21,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 19:03:21,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 19:03:21,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:03:21,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-21 19:03:21,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-21 19:03:21,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:03:21,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-21 19:03:21,988 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 19:03:21,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-21 19:03:22,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2447 trivial. 0 not checked. [2023-11-21 19:03:22,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:03:22,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385185958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:22,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 19:03:22,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-21 19:03:22,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873402357] [2023-11-21 19:03:22,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:22,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:03:22,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:22,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:03:22,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-21 19:03:22,028 INFO L87 Difference]: Start difference. First operand 4457 states and 7966 transitions. Second operand has 6 states, 5 states have (on average 31.6) internal successors, (158), 6 states have internal predecessors, (158), 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) [2023-11-21 19:03:22,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:22,631 INFO L93 Difference]: Finished difference Result 4829 states and 8704 transitions. [2023-11-21 19:03:22,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:03:22,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.6) internal successors, (158), 6 states have internal predecessors, (158), 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 833 [2023-11-21 19:03:22,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:22,647 INFO L225 Difference]: With dead ends: 4829 [2023-11-21 19:03:22,647 INFO L226 Difference]: Without dead ends: 4829 [2023-11-21 19:03:22,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 849 GetRequests, 830 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-21 19:03:22,648 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 266 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:22,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 937 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 19:03:22,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4829 states. [2023-11-21 19:03:22,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4829 to 4697. [2023-11-21 19:03:22,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4697 states, 4669 states have (on average 1.808095952023988) internal successors, (8442), 4696 states have internal predecessors, (8442), 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) [2023-11-21 19:03:22,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4697 states to 4697 states and 8442 transitions. [2023-11-21 19:03:22,747 INFO L78 Accepts]: Start accepts. Automaton has 4697 states and 8442 transitions. Word has length 833 [2023-11-21 19:03:22,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:22,748 INFO L495 AbstractCegarLoop]: Abstraction has 4697 states and 8442 transitions. [2023-11-21 19:03:22,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.6) internal successors, (158), 6 states have internal predecessors, (158), 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) [2023-11-21 19:03:22,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4697 states and 8442 transitions. [2023-11-21 19:03:22,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2023-11-21 19:03:22,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:22,780 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:22,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 19:03:23,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-21 19:03:23,001 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:23,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:23,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1402075553, now seen corresponding path program 1 times [2023-11-21 19:03:23,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:23,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869281233] [2023-11-21 19:03:23,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:23,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:25,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:25,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869281233] [2023-11-21 19:03:25,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869281233] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 19:03:25,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822539833] [2023-11-21 19:03:25,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:25,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 19:03:25,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:03:25,321 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 19:03:25,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 19:03:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:26,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 3228 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-21 19:03:26,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:03:27,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:27,461 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 19:03:28,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-21 19:03:28,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822539833] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 19:03:28,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [924768504] [2023-11-21 19:03:28,644 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 19:03:28,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 19:03:28,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-21 19:03:28,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661433238] [2023-11-21 19:03:28,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 19:03:28,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-21 19:03:28,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:28,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-21 19:03:28,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-21 19:03:28,654 INFO L87 Difference]: Start difference. First operand 4697 states and 8442 transitions. Second operand has 23 states, 23 states have (on average 48.47826086956522) internal successors, (1115), 23 states have internal predecessors, (1115), 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) [2023-11-21 19:03:29,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:29,269 INFO L93 Difference]: Finished difference Result 5012 states and 8757 transitions. [2023-11-21 19:03:29,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-21 19:03:29,270 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 48.47826086956522) internal successors, (1115), 23 states have internal predecessors, (1115), 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 843 [2023-11-21 19:03:29,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:29,286 INFO L225 Difference]: With dead ends: 5012 [2023-11-21 19:03:29,286 INFO L226 Difference]: Without dead ends: 5012 [2023-11-21 19:03:29,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1719 GetRequests, 1669 SyntacticMatches, 11 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=524, Invalid=1116, Unknown=0, NotChecked=0, Total=1640 [2023-11-21 19:03:29,288 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 147 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:29,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 2196 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 19:03:29,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2023-11-21 19:03:29,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 5012. [2023-11-21 19:03:29,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5012 states, 4984 states have (on average 1.7570224719101124) internal successors, (8757), 5011 states have internal predecessors, (8757), 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) [2023-11-21 19:03:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5012 states to 5012 states and 8757 transitions. [2023-11-21 19:03:29,418 INFO L78 Accepts]: Start accepts. Automaton has 5012 states and 8757 transitions. Word has length 843 [2023-11-21 19:03:29,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:29,420 INFO L495 AbstractCegarLoop]: Abstraction has 5012 states and 8757 transitions. [2023-11-21 19:03:29,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 48.47826086956522) internal successors, (1115), 23 states have internal predecessors, (1115), 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) [2023-11-21 19:03:29,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5012 states and 8757 transitions. [2023-11-21 19:03:29,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1159 [2023-11-21 19:03:29,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:29,440 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:29,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 19:03:29,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efe450fe-6b35-40a3-8048-0d28d90ff46d/bin/utaipan-verify-QoSU8krkJ5/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-21 19:03:29,667 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:29,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:29,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1393177179, now seen corresponding path program 2 times [2023-11-21 19:03:29,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:29,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673008373] [2023-11-21 19:03:29,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:29,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:03:34,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2023-11-21 19:03:34,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:03:34,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673008373] [2023-11-21 19:03:34,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673008373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:03:34,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:03:34,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 19:03:34,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184671349] [2023-11-21 19:03:34,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:03:34,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 19:03:34,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:03:34,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 19:03:34,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 19:03:34,243 INFO L87 Difference]: Start difference. First operand 5012 states and 8757 transitions. Second operand has 6 states, 5 states have (on average 33.6) internal successors, (168), 6 states have internal predecessors, (168), 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) [2023-11-21 19:03:34,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:03:34,962 INFO L93 Difference]: Finished difference Result 5700 states and 10111 transitions. [2023-11-21 19:03:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 19:03:34,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.6) internal successors, (168), 6 states have internal predecessors, (168), 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 1158 [2023-11-21 19:03:34,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:03:34,977 INFO L225 Difference]: With dead ends: 5700 [2023-11-21 19:03:34,977 INFO L226 Difference]: Without dead ends: 5414 [2023-11-21 19:03:34,978 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 [2023-11-21 19:03:34,978 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 268 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-21 19:03:34,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 1039 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-21 19:03:34,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5414 states. [2023-11-21 19:03:35,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5414 to 4966. [2023-11-21 19:03:35,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4966 states, 4939 states have (on average 1.7497469123304312) internal successors, (8642), 4965 states have internal predecessors, (8642), 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) [2023-11-21 19:03:35,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4966 states to 4966 states and 8642 transitions. [2023-11-21 19:03:35,112 INFO L78 Accepts]: Start accepts. Automaton has 4966 states and 8642 transitions. Word has length 1158 [2023-11-21 19:03:35,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:03:35,115 INFO L495 AbstractCegarLoop]: Abstraction has 4966 states and 8642 transitions. [2023-11-21 19:03:35,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.6) internal successors, (168), 6 states have internal predecessors, (168), 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) [2023-11-21 19:03:35,115 INFO L276 IsEmpty]: Start isEmpty. Operand 4966 states and 8642 transitions. [2023-11-21 19:03:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1160 [2023-11-21 19:03:35,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:03:35,140 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:03:35,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 19:03:35,141 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-21 19:03:35,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:03:35,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1352370101, now seen corresponding path program 1 times [2023-11-21 19:03:35,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:03:35,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074738134] [2023-11-21 19:03:35,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:03:35,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:03:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat