./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX --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 d12d10876782f724294e520e736e39c29f3c74eafacabb114f7449f7b8388c75 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:50,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:50,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-12 00:48:50,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:50,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:50,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:50,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:50,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:50,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:50,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:50,979 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:50,980 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:50,980 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:50,982 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:48:50,982 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:50,983 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:50,983 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:48:50,984 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:48:50,984 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:50,985 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:48:50,985 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:48:50,986 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:48:50,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:50,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:48:50,988 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:48:50,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:48:50,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:48:50,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:50,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:48:50,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:50,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:48:50,992 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 00:48:50,992 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:48:50,992 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:48:50,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:48:50,993 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:50,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:50,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:50,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:50,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:50,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:50,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:48:50,995 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:48:50,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:48:50,996 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:48:50,996 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:50,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:50,996 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_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d12d10876782f724294e520e736e39c29f3c74eafacabb114f7449f7b8388c75 [2023-11-12 00:48:51,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:51,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:51,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:51,412 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:51,413 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:51,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-2.i [2023-11-12 00:48:54,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:55,053 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:55,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race-2.i [2023-11-12 00:48:55,082 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/data/36eb10320/5585c9853f85432c8f818348f3c0955a/FLAG45ad2479a [2023-11-12 00:48:55,098 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/data/36eb10320/5585c9853f85432c8f818348f3c0955a [2023-11-12 00:48:55,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:55,105 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:55,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:55,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:55,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:55,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@116d1434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55, skipping insertion in model container [2023-11-12 00:48:55,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,172 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:55,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:55,626 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:48:55,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:55,717 WARN L672 CHandler]: The function pthread_detach is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:48:55,727 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:48:55,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55 WrapperNode [2023-11-12 00:48:55,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:55,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:55,730 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:48:55,730 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:48:55,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,790 INFO L138 Inliner]: procedures = 159, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2023-11-12 00:48:55,791 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:48:55,792 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:48:55,792 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:48:55,793 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:48:55,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,824 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:48:55,833 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:48:55,833 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:48:55,834 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:48:55,835 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:55,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:48:55,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:48:55,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:48:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:48:55,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:48:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 00:48:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:48:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:48:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:48:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2023-11-12 00:48:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:48:55,923 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-12 00:48:55,923 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-12 00:48:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:48:55,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:48:55,926 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:48:56,107 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:48:56,110 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:48:56,436 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:48:56,448 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:48:56,452 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:48:56,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:56 BoogieIcfgContainer [2023-11-12 00:48:56,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:48:56,459 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:48:56,459 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:48:56,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:48:56,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:48:55" (1/3) ... [2023-11-12 00:48:56,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249ed12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:56, skipping insertion in model container [2023-11-12 00:48:56,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55" (2/3) ... [2023-11-12 00:48:56,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249ed12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:48:56, skipping insertion in model container [2023-11-12 00:48:56,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:56" (3/3) ... [2023-11-12 00:48:56,491 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-outer-race-2.i [2023-11-12 00:48:56,514 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:48:56,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:48:56,529 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-12 00:48:56,529 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:48:56,660 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:48:56,698 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:48:56,716 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 135 transitions, 274 flow [2023-11-12 00:48:56,720 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 135 transitions, 274 flow [2023-11-12 00:48:56,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 135 transitions, 274 flow [2023-11-12 00:48:56,810 INFO L124 PetriNetUnfolderBase]: 7/176 cut-off events. [2023-11-12 00:48:56,811 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:48:56,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 176 events. 7/176 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 237 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 88. Up to 4 conditions per place. [2023-11-12 00:48:56,821 INFO L119 LiptonReduction]: Number of co-enabled transitions 3480 [2023-11-12 00:49:01,854 INFO L134 LiptonReduction]: Checked pairs total: 14290 [2023-11-12 00:49:01,855 INFO L136 LiptonReduction]: Total number of compositions: 97 [2023-11-12 00:49:01,864 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 45 transitions, 94 flow [2023-11-12 00:49:01,928 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 460 states, 429 states have (on average 2.076923076923077) internal successors, (891), 459 states have internal predecessors, (891), 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) [2023-11-12 00:49:01,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:49:01,958 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;@7aec8f67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:49:01,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-12 00:49:01,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 460 states, 429 states have (on average 2.076923076923077) internal successors, (891), 459 states have internal predecessors, (891), 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) [2023-11-12 00:49:01,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:49:01,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:01,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:49:01,970 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 00:49:01,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:01,977 INFO L85 PathProgramCache]: Analyzing trace with hash 13783179, now seen corresponding path program 1 times [2023-11-12 00:49:01,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:01,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464708883] [2023-11-12 00:49:01,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:01,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:02,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:02,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:02,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464708883] [2023-11-12 00:49:02,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464708883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:02,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:02,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:02,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981667401] [2023-11-12 00:49:02,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:02,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:02,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:02,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:02,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:02,295 INFO L87 Difference]: Start difference. First operand has 460 states, 429 states have (on average 2.076923076923077) internal successors, (891), 459 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-12 00:49:02,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:02,473 INFO L93 Difference]: Finished difference Result 578 states and 1091 transitions. [2023-11-12 00:49:02,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:02,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-12 00:49:02,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:02,505 INFO L225 Difference]: With dead ends: 578 [2023-11-12 00:49:02,506 INFO L226 Difference]: Without dead ends: 578 [2023-11-12 00:49:02,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:02,511 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 33 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:02,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 42 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:02,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2023-11-12 00:49:02,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 434. [2023-11-12 00:49:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 413 states have (on average 1.9854721549636805) internal successors, (820), 433 states have internal predecessors, (820), 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) [2023-11-12 00:49:02,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 820 transitions. [2023-11-12 00:49:02,625 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 820 transitions. Word has length 4 [2023-11-12 00:49:02,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:02,626 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 820 transitions. [2023-11-12 00:49:02,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-12 00:49:02,631 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 820 transitions. [2023-11-12 00:49:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:49:02,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:02,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:02,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:49:02,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 00:49:02,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:02,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1218407462, now seen corresponding path program 1 times [2023-11-12 00:49:02,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:02,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037761508] [2023-11-12 00:49:02,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:02,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:02,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:02,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:02,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037761508] [2023-11-12 00:49:02,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037761508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:02,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:02,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:02,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353403230] [2023-11-12 00:49:02,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:02,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:02,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:02,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:02,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:02,742 INFO L87 Difference]: Start difference. First operand 434 states and 820 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 00:49:02,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:02,830 INFO L93 Difference]: Finished difference Result 456 states and 863 transitions. [2023-11-12 00:49:02,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:02,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-12 00:49:02,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:02,834 INFO L225 Difference]: With dead ends: 456 [2023-11-12 00:49:02,835 INFO L226 Difference]: Without dead ends: 456 [2023-11-12 00:49:02,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:02,836 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 15 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:02,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 43 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:02,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-12 00:49:02,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 442. [2023-11-12 00:49:02,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 423 states have (on average 1.9763593380614657) internal successors, (836), 441 states have internal predecessors, (836), 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) [2023-11-12 00:49:02,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 836 transitions. [2023-11-12 00:49:02,857 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 836 transitions. Word has length 8 [2023-11-12 00:49:02,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:02,858 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 836 transitions. [2023-11-12 00:49:02,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 00:49:02,858 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 836 transitions. [2023-11-12 00:49:02,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:49:02,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:02,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:02,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:49:02,859 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 00:49:02,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:02,860 INFO L85 PathProgramCache]: Analyzing trace with hash 545070522, now seen corresponding path program 1 times [2023-11-12 00:49:02,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:02,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316237212] [2023-11-12 00:49:02,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:02,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:02,917 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:02,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316237212] [2023-11-12 00:49:02,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316237212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:02,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:02,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:02,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781315475] [2023-11-12 00:49:02,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:02,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:02,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:02,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:02,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:02,920 INFO L87 Difference]: Start difference. First operand 442 states and 836 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 00:49:02,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:02,979 INFO L93 Difference]: Finished difference Result 437 states and 820 transitions. [2023-11-12 00:49:02,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:02,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-12 00:49:02,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:02,983 INFO L225 Difference]: With dead ends: 437 [2023-11-12 00:49:02,983 INFO L226 Difference]: Without dead ends: 413 [2023-11-12 00:49:02,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:02,985 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 16 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:02,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 51 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:49:02,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-11-12 00:49:02,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 409. [2023-11-12 00:49:03,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 392 states have (on average 1.9668367346938775) internal successors, (771), 408 states have internal predecessors, (771), 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) [2023-11-12 00:49:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 771 transitions. [2023-11-12 00:49:03,002 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 771 transitions. Word has length 8 [2023-11-12 00:49:03,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:03,003 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 771 transitions. [2023-11-12 00:49:03,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 00:49:03,003 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 771 transitions. [2023-11-12 00:49:03,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:49:03,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:03,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:03,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:49:03,005 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 00:49:03,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:03,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1920889787, now seen corresponding path program 1 times [2023-11-12 00:49:03,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:03,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995791847] [2023-11-12 00:49:03,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:03,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:03,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:03,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:03,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995791847] [2023-11-12 00:49:03,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995791847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:03,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:03,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:03,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366770736] [2023-11-12 00:49:03,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:03,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:03,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:03,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:03,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:03,070 INFO L87 Difference]: Start difference. First operand 409 states and 771 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-12 00:49:03,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:03,142 INFO L93 Difference]: Finished difference Result 415 states and 781 transitions. [2023-11-12 00:49:03,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:03,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2023-11-12 00:49:03,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:03,145 INFO L225 Difference]: With dead ends: 415 [2023-11-12 00:49:03,146 INFO L226 Difference]: Without dead ends: 415 [2023-11-12 00:49:03,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:03,147 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 21 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:03,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 48 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:03,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-11-12 00:49:03,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2023-11-12 00:49:03,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 401 states have (on average 1.9476309226932669) internal successors, (781), 414 states have internal predecessors, (781), 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) [2023-11-12 00:49:03,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 781 transitions. [2023-11-12 00:49:03,162 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 781 transitions. Word has length 17 [2023-11-12 00:49:03,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:03,162 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 781 transitions. [2023-11-12 00:49:03,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-12 00:49:03,163 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 781 transitions. [2023-11-12 00:49:03,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 00:49:03,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:03,165 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-12 00:49:03,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:49:03,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-12 00:49:03,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:03,166 INFO L85 PathProgramCache]: Analyzing trace with hash -12325125, now seen corresponding path program 1 times [2023-11-12 00:49:03,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:03,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362689997] [2023-11-12 00:49:03,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:03,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:49:03,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:49:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:49:03,264 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:49:03,264 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:49:03,265 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2023-11-12 00:49:03,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-11-12 00:49:03,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-11-12 00:49:03,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-11-12 00:49:03,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-11-12 00:49:03,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-11-12 00:49:03,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-11-12 00:49:03,268 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-11-12 00:49:03,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-11-12 00:49:03,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-11-12 00:49:03,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-11-12 00:49:03,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-11-12 00:49:03,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:49:03,272 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-12 00:49:03,274 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 00:49:03,274 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 00:49:03,298 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:49:03,303 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:49:03,303 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 165 transitions, 340 flow [2023-11-12 00:49:03,304 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 165 transitions, 340 flow [2023-11-12 00:49:03,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 165 transitions, 340 flow [2023-11-12 00:49:03,387 INFO L124 PetriNetUnfolderBase]: 10/265 cut-off events. [2023-11-12 00:49:03,387 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 00:49:03,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 265 events. 10/265 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 405 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 177. Up to 6 conditions per place. [2023-11-12 00:49:03,398 INFO L119 LiptonReduction]: Number of co-enabled transitions 8700 [2023-11-12 00:49:07,998 INFO L134 LiptonReduction]: Checked pairs total: 37879 [2023-11-12 00:49:07,999 INFO L136 LiptonReduction]: Total number of compositions: 109 [2023-11-12 00:49:08,000 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 66 places, 63 transitions, 136 flow [2023-11-12 00:49:08,352 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8255 states, 8117 states have (on average 2.9153628187754097) internal successors, (23664), 8254 states have internal predecessors, (23664), 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) [2023-11-12 00:49:08,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:49:08,357 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;@7aec8f67, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:49:08,358 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-12 00:49:08,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 8255 states, 8117 states have (on average 2.9153628187754097) internal successors, (23664), 8254 states have internal predecessors, (23664), 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) [2023-11-12 00:49:08,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:49:08,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:08,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:49:08,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 00:49:08,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:08,395 INFO L85 PathProgramCache]: Analyzing trace with hash 23158495, now seen corresponding path program 1 times [2023-11-12 00:49:08,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:08,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245905683] [2023-11-12 00:49:08,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:08,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:08,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:08,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:08,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245905683] [2023-11-12 00:49:08,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245905683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:08,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:08,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:08,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500986071] [2023-11-12 00:49:08,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:08,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:49:08,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:08,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:49:08,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:49:08,461 INFO L87 Difference]: Start difference. First operand has 8255 states, 8117 states have (on average 2.9153628187754097) internal successors, (23664), 8254 states have internal predecessors, (23664), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-12 00:49:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:08,639 INFO L93 Difference]: Finished difference Result 7949 states and 22491 transitions. [2023-11-12 00:49:08,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:49:08,640 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-12 00:49:08,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:08,729 INFO L225 Difference]: With dead ends: 7949 [2023-11-12 00:49:08,729 INFO L226 Difference]: Without dead ends: 7949 [2023-11-12 00:49:08,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:49:08,732 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:08,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:49:08,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7949 states. [2023-11-12 00:49:09,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7949 to 7949. [2023-11-12 00:49:09,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7949 states, 7831 states have (on average 2.872046992721236) internal successors, (22491), 7948 states have internal predecessors, (22491), 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) [2023-11-12 00:49:09,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7949 states to 7949 states and 22491 transitions. [2023-11-12 00:49:09,163 INFO L78 Accepts]: Start accepts. Automaton has 7949 states and 22491 transitions. Word has length 4 [2023-11-12 00:49:09,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:09,164 INFO L495 AbstractCegarLoop]: Abstraction has 7949 states and 22491 transitions. [2023-11-12 00:49:09,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-12 00:49:09,164 INFO L276 IsEmpty]: Start isEmpty. Operand 7949 states and 22491 transitions. [2023-11-12 00:49:09,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:49:09,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:09,165 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:49:09,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:49:09,165 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 00:49:09,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:09,166 INFO L85 PathProgramCache]: Analyzing trace with hash 23151384, now seen corresponding path program 1 times [2023-11-12 00:49:09,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:09,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324712970] [2023-11-12 00:49:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:09,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:09,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:09,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:09,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324712970] [2023-11-12 00:49:09,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324712970] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:09,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:09,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:09,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563804858] [2023-11-12 00:49:09,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:09,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:09,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:09,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:09,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:09,224 INFO L87 Difference]: Start difference. First operand 7949 states and 22491 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-12 00:49:09,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:09,489 INFO L93 Difference]: Finished difference Result 12566 states and 34954 transitions. [2023-11-12 00:49:09,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:09,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-12 00:49:09,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:09,590 INFO L225 Difference]: With dead ends: 12566 [2023-11-12 00:49:09,590 INFO L226 Difference]: Without dead ends: 12566 [2023-11-12 00:49:09,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:09,592 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 48 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:09,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 51 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:09,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12566 states. [2023-11-12 00:49:10,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12566 to 8742. [2023-11-12 00:49:10,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8742 states, 8634 states have (on average 2.8436414176511464) internal successors, (24552), 8741 states have internal predecessors, (24552), 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) [2023-11-12 00:49:10,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8742 states to 8742 states and 24552 transitions. [2023-11-12 00:49:10,255 INFO L78 Accepts]: Start accepts. Automaton has 8742 states and 24552 transitions. Word has length 4 [2023-11-12 00:49:10,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:10,256 INFO L495 AbstractCegarLoop]: Abstraction has 8742 states and 24552 transitions. [2023-11-12 00:49:10,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-12 00:49:10,256 INFO L276 IsEmpty]: Start isEmpty. Operand 8742 states and 24552 transitions. [2023-11-12 00:49:10,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:49:10,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:10,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:10,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:49:10,258 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 00:49:10,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:10,258 INFO L85 PathProgramCache]: Analyzing trace with hash 457545210, now seen corresponding path program 1 times [2023-11-12 00:49:10,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:10,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479321418] [2023-11-12 00:49:10,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:10,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:10,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:10,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:10,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479321418] [2023-11-12 00:49:10,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479321418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:10,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:10,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:10,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463051743] [2023-11-12 00:49:10,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:10,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:10,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:10,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:10,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:10,291 INFO L87 Difference]: Start difference. First operand 8742 states and 24552 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 00:49:10,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:10,558 INFO L93 Difference]: Finished difference Result 8939 states and 24912 transitions. [2023-11-12 00:49:10,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:10,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-12 00:49:10,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:10,611 INFO L225 Difference]: With dead ends: 8939 [2023-11-12 00:49:10,611 INFO L226 Difference]: Without dead ends: 8883 [2023-11-12 00:49:10,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:10,613 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 32 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:10,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 66 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:10,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8883 states. [2023-11-12 00:49:11,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8883 to 8631. [2023-11-12 00:49:11,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8631 states, 8528 states have (on average 2.839000938086304) internal successors, (24211), 8630 states have internal predecessors, (24211), 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) [2023-11-12 00:49:11,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8631 states to 8631 states and 24211 transitions. [2023-11-12 00:49:11,106 INFO L78 Accepts]: Start accepts. Automaton has 8631 states and 24211 transitions. Word has length 8 [2023-11-12 00:49:11,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:11,110 INFO L495 AbstractCegarLoop]: Abstraction has 8631 states and 24211 transitions. [2023-11-12 00:49:11,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 00:49:11,111 INFO L276 IsEmpty]: Start isEmpty. Operand 8631 states and 24211 transitions. [2023-11-12 00:49:11,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:49:11,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:11,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:11,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 00:49:11,113 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 00:49:11,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:11,118 INFO L85 PathProgramCache]: Analyzing trace with hash 2101531988, now seen corresponding path program 1 times [2023-11-12 00:49:11,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:11,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332533030] [2023-11-12 00:49:11,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:11,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:11,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:11,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:11,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332533030] [2023-11-12 00:49:11,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332533030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:11,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:11,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:11,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186498651] [2023-11-12 00:49:11,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:11,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:11,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:11,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:11,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:11,176 INFO L87 Difference]: Start difference. First operand 8631 states and 24211 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 00:49:11,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:11,401 INFO L93 Difference]: Finished difference Result 9204 states and 25817 transitions. [2023-11-12 00:49:11,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:11,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-12 00:49:11,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:11,588 INFO L225 Difference]: With dead ends: 9204 [2023-11-12 00:49:11,588 INFO L226 Difference]: Without dead ends: 9204 [2023-11-12 00:49:11,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:11,590 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 29 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 54 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 [2023-11-12 00:49:11,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 54 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:11,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9204 states. [2023-11-12 00:49:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9204 to 8890. [2023-11-12 00:49:12,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8890 states, 8790 states have (on average 2.836632536973834) internal successors, (24934), 8889 states have internal predecessors, (24934), 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) [2023-11-12 00:49:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8890 states to 8890 states and 24934 transitions. [2023-11-12 00:49:12,171 INFO L78 Accepts]: Start accepts. Automaton has 8890 states and 24934 transitions. Word has length 8 [2023-11-12 00:49:12,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:12,171 INFO L495 AbstractCegarLoop]: Abstraction has 8890 states and 24934 transitions. [2023-11-12 00:49:12,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 00:49:12,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8890 states and 24934 transitions. [2023-11-12 00:49:12,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:49:12,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:12,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:12,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 00:49:12,184 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 00:49:12,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:12,185 INFO L85 PathProgramCache]: Analyzing trace with hash 824084350, now seen corresponding path program 1 times [2023-11-12 00:49:12,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:12,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854543335] [2023-11-12 00:49:12,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:12,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:12,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:12,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:12,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854543335] [2023-11-12 00:49:12,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854543335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:12,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:12,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:12,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050957623] [2023-11-12 00:49:12,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:12,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:12,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:12,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:12,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:12,244 INFO L87 Difference]: Start difference. First operand 8890 states and 24934 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-12 00:49:12,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:12,474 INFO L93 Difference]: Finished difference Result 9719 states and 27278 transitions. [2023-11-12 00:49:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:12,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2023-11-12 00:49:12,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:12,680 INFO L225 Difference]: With dead ends: 9719 [2023-11-12 00:49:12,680 INFO L226 Difference]: Without dead ends: 9719 [2023-11-12 00:49:12,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:12,689 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 39 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:12,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 62 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:12,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9719 states. [2023-11-12 00:49:13,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9719 to 9245. [2023-11-12 00:49:13,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9245 states, 9151 states have (on average 2.833242268604524) internal successors, (25927), 9244 states have internal predecessors, (25927), 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) [2023-11-12 00:49:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9245 states to 9245 states and 25927 transitions. [2023-11-12 00:49:13,181 INFO L78 Accepts]: Start accepts. Automaton has 9245 states and 25927 transitions. Word has length 17 [2023-11-12 00:49:13,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:13,182 INFO L495 AbstractCegarLoop]: Abstraction has 9245 states and 25927 transitions. [2023-11-12 00:49:13,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-12 00:49:13,182 INFO L276 IsEmpty]: Start isEmpty. Operand 9245 states and 25927 transitions. [2023-11-12 00:49:13,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 00:49:13,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:13,184 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] [2023-11-12 00:49:13,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 00:49:13,185 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 00:49:13,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:13,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1348873300, now seen corresponding path program 1 times [2023-11-12 00:49:13,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:13,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813886843] [2023-11-12 00:49:13,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:13,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:13,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:13,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813886843] [2023-11-12 00:49:13,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813886843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:13,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:13,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:13,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143534136] [2023-11-12 00:49:13,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:13,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:13,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:13,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:13,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:13,349 INFO L87 Difference]: Start difference. First operand 9245 states and 25927 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-12 00:49:13,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:13,462 INFO L93 Difference]: Finished difference Result 3716 states and 8733 transitions. [2023-11-12 00:49:13,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:13,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2023-11-12 00:49:13,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:13,475 INFO L225 Difference]: With dead ends: 3716 [2023-11-12 00:49:13,476 INFO L226 Difference]: Without dead ends: 3716 [2023-11-12 00:49:13,476 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 [2023-11-12 00:49:13,477 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 42 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:13,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 66 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:13,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2023-11-12 00:49:13,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3448. [2023-11-12 00:49:13,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 3404 states have (on average 2.420975323149236) internal successors, (8241), 3447 states have internal predecessors, (8241), 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) [2023-11-12 00:49:13,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 8241 transitions. [2023-11-12 00:49:13,574 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 8241 transitions. Word has length 21 [2023-11-12 00:49:13,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:13,574 INFO L495 AbstractCegarLoop]: Abstraction has 3448 states and 8241 transitions. [2023-11-12 00:49:13,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-12 00:49:13,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 8241 transitions. [2023-11-12 00:49:13,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 00:49:13,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:13,577 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] [2023-11-12 00:49:13,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 00:49:13,578 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 00:49:13,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:13,578 INFO L85 PathProgramCache]: Analyzing trace with hash -463377806, now seen corresponding path program 1 times [2023-11-12 00:49:13,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:13,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693840180] [2023-11-12 00:49:13,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:13,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:13,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:13,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:13,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693840180] [2023-11-12 00:49:13,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693840180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:13,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:13,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:13,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550978734] [2023-11-12 00:49:13,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:13,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:13,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:13,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:13,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:13,630 INFO L87 Difference]: Start difference. First operand 3448 states and 8241 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-12 00:49:13,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:13,783 INFO L93 Difference]: Finished difference Result 3496 states and 8343 transitions. [2023-11-12 00:49:13,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:13,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2023-11-12 00:49:13,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:13,796 INFO L225 Difference]: With dead ends: 3496 [2023-11-12 00:49:13,797 INFO L226 Difference]: Without dead ends: 3424 [2023-11-12 00:49:13,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:13,798 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 41 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 76 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 [2023-11-12 00:49:13,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 76 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:13,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3424 states. [2023-11-12 00:49:13,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3424 to 3312. [2023-11-12 00:49:13,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 3276 states have (on average 2.392246642246642) internal successors, (7837), 3311 states have internal predecessors, (7837), 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) [2023-11-12 00:49:13,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 7837 transitions. [2023-11-12 00:49:13,905 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 7837 transitions. Word has length 22 [2023-11-12 00:49:13,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:13,905 INFO L495 AbstractCegarLoop]: Abstraction has 3312 states and 7837 transitions. [2023-11-12 00:49:13,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-12 00:49:13,906 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 7837 transitions. [2023-11-12 00:49:13,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 00:49:13,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:13,907 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:13,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 00:49:13,908 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 00:49:13,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:13,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1368733699, now seen corresponding path program 1 times [2023-11-12 00:49:13,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:13,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551667509] [2023-11-12 00:49:13,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:13,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:13,956 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 00:49:13,957 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:13,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551667509] [2023-11-12 00:49:13,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551667509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:13,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:13,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:13,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320688908] [2023-11-12 00:49:13,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:13,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:13,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:13,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:13,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:13,960 INFO L87 Difference]: Start difference. First operand 3312 states and 7837 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-12 00:49:14,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:14,067 INFO L93 Difference]: Finished difference Result 3260 states and 7699 transitions. [2023-11-12 00:49:14,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:14,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-11-12 00:49:14,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:14,079 INFO L225 Difference]: With dead ends: 3260 [2023-11-12 00:49:14,079 INFO L226 Difference]: Without dead ends: 3260 [2023-11-12 00:49:14,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:14,081 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 30 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:14,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 60 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:14,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3260 states. [2023-11-12 00:49:14,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3260 to 3242. [2023-11-12 00:49:14,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3242 states, 3217 states have (on average 2.3823437985700964) internal successors, (7664), 3241 states have internal predecessors, (7664), 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) [2023-11-12 00:49:14,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3242 states to 3242 states and 7664 transitions. [2023-11-12 00:49:14,183 INFO L78 Accepts]: Start accepts. Automaton has 3242 states and 7664 transitions. Word has length 28 [2023-11-12 00:49:14,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:14,184 INFO L495 AbstractCegarLoop]: Abstraction has 3242 states and 7664 transitions. [2023-11-12 00:49:14,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-12 00:49:14,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3242 states and 7664 transitions. [2023-11-12 00:49:14,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 00:49:14,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:14,186 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] [2023-11-12 00:49:14,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 00:49:14,187 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-12 00:49:14,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:14,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1476394673, now seen corresponding path program 1 times [2023-11-12 00:49:14,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:14,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220561372] [2023-11-12 00:49:14,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:14,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:49:14,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:49:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:49:14,247 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:49:14,247 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:49:14,248 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr2ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-11-12 00:49:14,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-12 00:49:14,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-12 00:49:14,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-12 00:49:14,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-12 00:49:14,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-12 00:49:14,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-12 00:49:14,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-12 00:49:14,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-12 00:49:14,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-12 00:49:14,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-11-12 00:49:14,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-11-12 00:49:14,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-12 00:49:14,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-12 00:49:14,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-12 00:49:14,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 00:49:14,252 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:14,258 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-11-12 00:49:14,258 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:49:14,350 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-12 00:49:14,351 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,351 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 00:49:14,352 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 00:49:14,352 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 00:49:14,352 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 00:49:14,353 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,353 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 00:49:14,353 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,353 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 00:49:14,354 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,354 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 00:49:14,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:49:14 BasicIcfg [2023-11-12 00:49:14,364 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:49:14,364 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:49:14,365 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:49:14,365 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:49:14,365 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:48:56" (3/4) ... [2023-11-12 00:49:14,368 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:49:14,369 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:49:14,370 INFO L158 Benchmark]: Toolchain (without parser) took 19264.90ms. Allocated memory was 136.3MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 90.6MB in the beginning and 1.1GB in the end (delta: -962.7MB). Peak memory consumption was 127.9MB. Max. memory is 16.1GB. [2023-11-12 00:49:14,370 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 136.3MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:49:14,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 622.40ms. Allocated memory is still 136.3MB. Free memory was 90.0MB in the beginning and 70.7MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 00:49:14,371 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.95ms. Allocated memory is still 136.3MB. Free memory was 70.7MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:49:14,372 INFO L158 Benchmark]: Boogie Preprocessor took 40.37ms. Allocated memory is still 136.3MB. Free memory was 68.6MB in the beginning and 66.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:49:14,372 INFO L158 Benchmark]: RCFGBuilder took 622.28ms. Allocated memory is still 136.3MB. Free memory was 66.9MB in the beginning and 106.6MB in the end (delta: -39.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 00:49:14,373 INFO L158 Benchmark]: TraceAbstraction took 17905.04ms. Allocated memory was 136.3MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 105.7MB in the beginning and 1.1GB in the end (delta: -948.7MB). Peak memory consumption was 253.7MB. Max. memory is 16.1GB. [2023-11-12 00:49:14,373 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:49:14,375 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 136.3MB. Free memory is still 109.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 622.40ms. Allocated memory is still 136.3MB. Free memory was 90.0MB in the beginning and 70.7MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.95ms. Allocated memory is still 136.3MB. Free memory was 70.7MB in the beginning and 68.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.37ms. Allocated memory is still 136.3MB. Free memory was 68.6MB in the beginning and 66.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 622.28ms. Allocated memory is still 136.3MB. Free memory was 66.9MB in the beginning and 106.6MB in the end (delta: -39.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17905.04ms. Allocated memory was 136.3MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 105.7MB in the beginning and 1.1GB in the end (delta: -948.7MB). Peak memory consumption was 253.7MB. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.1s, 134 PlacesBefore, 46 PlacesAfterwards, 135 TransitionsBefore, 45 TransitionsAfterwards, 3480 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 97 TotalNumberOfCompositions, 14290 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5788, independent: 5271, independent conditional: 0, independent unconditional: 5271, dependent: 517, dependent conditional: 0, dependent unconditional: 517, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2336, independent: 2242, independent conditional: 0, independent unconditional: 2242, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2336, independent: 2207, independent conditional: 0, independent unconditional: 2207, dependent: 129, dependent conditional: 0, dependent unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 129, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 314, independent: 94, independent conditional: 0, independent unconditional: 94, dependent: 220, dependent conditional: 0, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5788, independent: 3029, independent conditional: 0, independent unconditional: 3029, dependent: 423, dependent conditional: 0, dependent unconditional: 423, unknown: 2336, unknown conditional: 0, unknown unconditional: 2336] , Statistics on independence cache: Total cache size (in pairs): 483, Positive cache size: 431, Positive conditional cache size: 0, Positive unconditional cache size: 431, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7s, 166 PlacesBefore, 66 PlacesAfterwards, 165 TransitionsBefore, 63 TransitionsAfterwards, 8700 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 109 TotalNumberOfCompositions, 37879 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10915, independent: 10171, independent conditional: 0, independent unconditional: 10171, dependent: 744, dependent conditional: 0, dependent unconditional: 744, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4920, independent: 4790, independent conditional: 0, independent unconditional: 4790, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4920, independent: 4733, independent conditional: 0, independent unconditional: 4733, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 187, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 311, independent: 80, independent conditional: 0, independent unconditional: 80, dependent: 231, dependent conditional: 0, dependent unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10915, independent: 5381, independent conditional: 0, independent unconditional: 5381, dependent: 614, dependent conditional: 0, dependent unconditional: 614, unknown: 4920, unknown conditional: 0, unknown unconditional: 4920] , Statistics on independence cache: Total cache size (in pairs): 808, Positive cache size: 727, Positive conditional cache size: 0, Positive unconditional cache size: 727, Negative cache size: 81, Negative conditional cache size: 0, Negative unconditional cache size: 81, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 696]: Data race detected [2023-11-12 00:49:14,406 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-12 00:49:14,407 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,407 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 00:49:14,408 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 00:49:14,408 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 00:49:14,408 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 00:49:14,408 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,409 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 00:49:14,409 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,409 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 00:49:14,410 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,410 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 00:49:14,429 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-12 00:49:14,430 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,430 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 00:49:14,431 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 00:49:14,431 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 00:49:14,431 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-12 00:49:14,432 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,432 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 00:49:14,432 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,432 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 00:49:14,433 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 00:49:14,433 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated Data race detected The following path leads to a data race: [L685] 0 int threads_alive = 0; [L686] 0 pthread_mutex_t threads_alive_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L687] 0 pthread_cond_t threads_alive_cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L688] 0 int data = 0; [L689] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L701] 0 int threads_total = __VERIFIER_nondet_int(); [L702] CALL 0 assume_abort_if_not(threads_total >= 0) [L682] COND FALSE 0 !(!cond) [L702] RET 0 assume_abort_if_not(threads_total >= 0) [L703] 0 int i = 0; VAL [data=0, data_mutex={3:0}, i=0, threads_alive=0, threads_alive_cond={2:0}, threads_alive_mutex={1:0}, threads_total=1] [L703] COND TRUE 0 i < threads_total [L705] 0 threads_alive++ [L707] 0 pthread_t tid; [L708] FCALL, FORK 0 pthread_create(&tid, ((void *)0), &thread, ((void *)0)) VAL [arg={0:0}, data=0, data_mutex={3:0}, i=0, threads_alive=1, threads_alive_cond={2:0}, threads_alive_mutex={1:0}, threads_total=1, tid={5:0}] [L709] EXPR 0 \read(tid) [L709] 0 pthread_detach(tid) [L703] 0 i++ [L692] 1 threads_alive-- [L696] 1 data = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={3:0}, threads_alive=0, threads_alive_cond={2:0}, threads_alive_mutex={1:0}] [L703] COND FALSE 0 !(i < threads_total) [L712] COND FALSE 0 !(\read(threads_alive)) VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={3:0}, threads_alive=0, threads_alive_cond={2:0}, threads_alive_mutex={1:0}, threads_total=1] [L715] 0 return data; VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={3:0}, threads_alive=0, threads_alive_cond={2:0}, threads_alive_mutex={1:0}, threads_total=1] [L696] 1 data = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={3:0}, threads_alive=0, threads_alive_cond={2:0}, threads_alive_mutex={1:0}] Now there is a data race on ~data~0 between C: return data; [715] and C: data = __VERIFIER_nondet_int() [696] - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 162 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 184 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 121 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=460occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 162 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 192 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 261 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 261 mSDsluCounter, 466 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 147 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 671 IncrementalHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 319 mSDtfsCounter, 671 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9245occurred in iteration=5, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 5262 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-12 00:49:14,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def9bd80-fa15-4cd6-be32-27e59b5ea9a3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE