./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --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 30be2d02c76302b32ef0f3489a863fd4dd7369a786303f9fa3ce3f9985de18bf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:11:45,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:11:45,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:11:45,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:11:45,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:11:45,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:11:45,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:11:45,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:11:45,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:11:45,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:11:45,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:11:45,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:11:45,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:11:45,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:11:45,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:11:45,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:11:45,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:11:45,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:11:45,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:11:45,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:11:45,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:11:45,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:11:45,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:11:45,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:11:45,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:11:45,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:11:45,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:11:45,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:11:45,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:11:45,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:11:45,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:11:45,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:11:45,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:11:45,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:11:46,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:11:46,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:11:46,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:11:46,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:11:46,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:11:46,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:11:46,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:11:46,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 00:11:46,045 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:11:46,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:11:46,049 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:11:46,050 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:11:46,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:11:46,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:11:46,051 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:11:46,051 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:11:46,052 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:11:46,052 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:11:46,053 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:11:46,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:11:46,053 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:11:46,054 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:11:46,054 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:11:46,054 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:11:46,054 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:11:46,055 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:11:46,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:11:46,056 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:11:46,056 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:11:46,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:11:46,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:11:46,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:11:46,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:11:46,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:11:46,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:11:46,058 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 00:11:46,058 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:11:46,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:11:46,059 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:11:46,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:11:46,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:11:46,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:11:46,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:11:46,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:11:46,060 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:11:46,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:11:46,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:11:46,061 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:11:46,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:11:46,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:11:46,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:11:46,062 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30be2d02c76302b32ef0f3489a863fd4dd7369a786303f9fa3ce3f9985de18bf [2022-11-22 00:11:46,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:11:46,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:11:46,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:11:46,376 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:11:46,377 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:11:46,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-atomic/szymanski-b.i [2022-11-22 00:11:49,368 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:11:49,734 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:11:49,743 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/sv-benchmarks/c/pthread-atomic/szymanski-b.i [2022-11-22 00:11:49,754 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/data/426eab9f6/b0bb6e2f53924cdda95cc720d0b14af4/FLAGf3d93eb11 [2022-11-22 00:11:49,768 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/data/426eab9f6/b0bb6e2f53924cdda95cc720d0b14af4 [2022-11-22 00:11:49,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:11:49,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:11:49,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:11:49,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:11:49,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:11:49,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b2ed6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49, skipping insertion in model container [2022-11-22 00:11:49,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:11:49,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:11:50,224 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30088,30101] [2022-11-22 00:11:50,235 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30375,30388] [2022-11-22 00:11:50,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:11:50,260 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:11:50,319 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30088,30101] [2022-11-22 00:11:50,322 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30375,30388] [2022-11-22 00:11:50,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:11:50,376 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:11:50,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50 WrapperNode [2022-11-22 00:11:50,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:11:50,379 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:11:50,379 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:11:50,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:11:50,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (1/1) ... [2022-11-22 00:11:50,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (1/1) ... [2022-11-22 00:11:50,426 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-11-22 00:11:50,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:11:50,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:11:50,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:11:50,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:11:50,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (1/1) ... [2022-11-22 00:11:50,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (1/1) ... [2022-11-22 00:11:50,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (1/1) ... [2022-11-22 00:11:50,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (1/1) ... [2022-11-22 00:11:50,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (1/1) ... [2022-11-22 00:11:50,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (1/1) ... [2022-11-22 00:11:50,457 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (1/1) ... [2022-11-22 00:11:50,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (1/1) ... [2022-11-22 00:11:50,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:11:50,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:11:50,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:11:50,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:11:50,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (1/1) ... [2022-11-22 00:11:50,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:11:50,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:11:50,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:11:50,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:11:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:11:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-22 00:11:50,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-22 00:11:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-22 00:11:50,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-22 00:11:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:11:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:11:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:11:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:11:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:11:50,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:11:50,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:11:50,559 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 00:11:50,715 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:11:50,721 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:11:51,033 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:11:51,042 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:11:51,049 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-22 00:11:51,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:11:51 BoogieIcfgContainer [2022-11-22 00:11:51,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:11:51,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:11:51,059 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:11:51,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:11:51,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:11:49" (1/3) ... [2022-11-22 00:11:51,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d3f2b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:11:51, skipping insertion in model container [2022-11-22 00:11:51,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:50" (2/3) ... [2022-11-22 00:11:51,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d3f2b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:11:51, skipping insertion in model container [2022-11-22 00:11:51,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:11:51" (3/3) ... [2022-11-22 00:11:51,067 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski-b.i [2022-11-22 00:11:51,079 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:11:51,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:11:51,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-11-22 00:11:51,091 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:11:51,230 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-22 00:11:51,266 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:11:51,281 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 225 transitions, 466 flow [2022-11-22 00:11:51,284 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 225 transitions, 466 flow [2022-11-22 00:11:51,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 225 transitions, 466 flow [2022-11-22 00:11:51,393 INFO L130 PetriNetUnfolder]: 22/223 cut-off events. [2022-11-22 00:11:51,394 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 00:11:51,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 223 events. 22/223 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 506 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 187. Up to 3 conditions per place. [2022-11-22 00:11:51,416 INFO L119 LiptonReduction]: Number of co-enabled transitions 19656 [2022-11-22 00:11:54,625 INFO L134 LiptonReduction]: Checked pairs total: 83572 [2022-11-22 00:11:54,626 INFO L136 LiptonReduction]: Total number of compositions: 116 [2022-11-22 00:11:54,635 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 137 transitions, 290 flow [2022-11-22 00:11:54,928 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8373 states, 7968 states have (on average 3.1779618473895583) internal successors, (25322), 8372 states have internal predecessors, (25322), 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) [2022-11-22 00:11:54,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:11:54,953 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=LoopsAndPotentialCycles, 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;@449b490e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:11:54,953 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-11-22 00:11:54,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 8373 states, 7968 states have (on average 3.1779618473895583) internal successors, (25322), 8372 states have internal predecessors, (25322), 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) [2022-11-22 00:11:54,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:11:54,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:54,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:11:54,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-22 00:11:54,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:54,991 INFO L85 PathProgramCache]: Analyzing trace with hash 818188540, now seen corresponding path program 1 times [2022-11-22 00:11:55,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:55,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831914303] [2022-11-22 00:11:55,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:55,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:11:55,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:55,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831914303] [2022-11-22 00:11:55,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831914303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:55,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:11:55,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:11:55,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489476418] [2022-11-22 00:11:55,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:55,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 00:11:55,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:55,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 00:11:55,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:11:55,318 INFO L87 Difference]: Start difference. First operand has 8373 states, 7968 states have (on average 3.1779618473895583) internal successors, (25322), 8372 states have internal predecessors, (25322), 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, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-22 00:11:55,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:55,511 INFO L93 Difference]: Finished difference Result 5617 states and 14996 transitions. [2022-11-22 00:11:55,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 00:11:55,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-22 00:11:55,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:55,577 INFO L225 Difference]: With dead ends: 5617 [2022-11-22 00:11:55,577 INFO L226 Difference]: Without dead ends: 5614 [2022-11-22 00:11:55,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:11:55,583 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:55,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:11:55,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5614 states. [2022-11-22 00:11:55,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5614 to 5614. [2022-11-22 00:11:55,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5614 states, 5419 states have (on average 2.7660084886510425) internal successors, (14989), 5613 states have internal predecessors, (14989), 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) [2022-11-22 00:11:55,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5614 states to 5614 states and 14989 transitions. [2022-11-22 00:11:55,854 INFO L78 Accepts]: Start accepts. Automaton has 5614 states and 14989 transitions. Word has length 5 [2022-11-22 00:11:55,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:55,855 INFO L495 AbstractCegarLoop]: Abstraction has 5614 states and 14989 transitions. [2022-11-22 00:11:55,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-22 00:11:55,855 INFO L276 IsEmpty]: Start isEmpty. Operand 5614 states and 14989 transitions. [2022-11-22 00:11:55,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:11:55,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:55,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:11:55,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:11:55,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-22 00:11:55,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:55,857 INFO L85 PathProgramCache]: Analyzing trace with hash 818129971, now seen corresponding path program 1 times [2022-11-22 00:11:55,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:55,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246926652] [2022-11-22 00:11:55,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:55,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:55,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:11:55,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:55,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246926652] [2022-11-22 00:11:55,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246926652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:55,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:11:55,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:11:55,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221337428] [2022-11-22 00:11:55,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:55,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:11:55,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:55,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:11:55,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:11:55,938 INFO L87 Difference]: Start difference. First operand 5614 states and 14989 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-22 00:11:56,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:56,199 INFO L93 Difference]: Finished difference Result 5700 states and 15215 transitions. [2022-11-22 00:11:56,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:11:56,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-22 00:11:56,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:56,233 INFO L225 Difference]: With dead ends: 5700 [2022-11-22 00:11:56,233 INFO L226 Difference]: Without dead ends: 5700 [2022-11-22 00:11:56,234 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 [2022-11-22 00:11:56,235 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 54 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:56,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 163 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:11:56,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-11-22 00:11:56,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2022-11-22 00:11:56,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5506 states have (on average 2.7633490737377406) internal successors, (15215), 5699 states have internal predecessors, (15215), 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) [2022-11-22 00:11:56,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 15215 transitions. [2022-11-22 00:11:56,440 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 15215 transitions. Word has length 5 [2022-11-22 00:11:56,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:56,440 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 15215 transitions. [2022-11-22 00:11:56,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-22 00:11:56,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 15215 transitions. [2022-11-22 00:11:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 00:11:56,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:56,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:11:56,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:11:56,448 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-22 00:11:56,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:56,449 INFO L85 PathProgramCache]: Analyzing trace with hash 300149876, now seen corresponding path program 1 times [2022-11-22 00:11:56,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:56,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310872933] [2022-11-22 00:11:56,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:56,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:56,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:11:56,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:56,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310872933] [2022-11-22 00:11:56,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310872933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:56,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:11:56,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:11:56,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723933501] [2022-11-22 00:11:56,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:56,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:11:56,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:56,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:11:56,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:11:56,500 INFO L87 Difference]: Start difference. First operand 5700 states and 15215 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-22 00:11:56,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:56,701 INFO L93 Difference]: Finished difference Result 5792 states and 15454 transitions. [2022-11-22 00:11:56,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:11:56,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-22 00:11:56,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:56,753 INFO L225 Difference]: With dead ends: 5792 [2022-11-22 00:11:56,754 INFO L226 Difference]: Without dead ends: 5792 [2022-11-22 00:11:56,754 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 [2022-11-22 00:11:56,756 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 53 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:56,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 162 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:11:56,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5792 states. [2022-11-22 00:11:56,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5792 to 5792. [2022-11-22 00:11:56,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5792 states, 5598 states have (on average 2.760628795998571) internal successors, (15454), 5791 states have internal predecessors, (15454), 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) [2022-11-22 00:11:56,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5792 states to 5792 states and 15454 transitions. [2022-11-22 00:11:56,932 INFO L78 Accepts]: Start accepts. Automaton has 5792 states and 15454 transitions. Word has length 7 [2022-11-22 00:11:56,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:56,934 INFO L495 AbstractCegarLoop]: Abstraction has 5792 states and 15454 transitions. [2022-11-22 00:11:56,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-22 00:11:56,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5792 states and 15454 transitions. [2022-11-22 00:11:56,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 00:11:56,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:56,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:11:56,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:11:56,937 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-22 00:11:56,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:56,937 INFO L85 PathProgramCache]: Analyzing trace with hash 244045701, now seen corresponding path program 1 times [2022-11-22 00:11:56,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:56,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638138747] [2022-11-22 00:11:56,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:56,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:56,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:11:56,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:56,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638138747] [2022-11-22 00:11:56,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638138747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:56,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:11:56,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:11:56,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370257182] [2022-11-22 00:11:56,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:56,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:11:56,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:56,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:11:56,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:11:56,985 INFO L87 Difference]: Start difference. First operand 5792 states and 15454 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-22 00:11:57,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:57,217 INFO L93 Difference]: Finished difference Result 9936 states and 26691 transitions. [2022-11-22 00:11:57,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:11:57,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-22 00:11:57,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:57,259 INFO L225 Difference]: With dead ends: 9936 [2022-11-22 00:11:57,260 INFO L226 Difference]: Without dead ends: 9936 [2022-11-22 00:11:57,260 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 [2022-11-22 00:11:57,263 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 98 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:57,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 165 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:11:57,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9936 states. [2022-11-22 00:11:57,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9936 to 6308. [2022-11-22 00:11:57,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6308 states, 6120 states have (on average 2.746732026143791) internal successors, (16810), 6307 states have internal predecessors, (16810), 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) [2022-11-22 00:11:57,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6308 states to 6308 states and 16810 transitions. [2022-11-22 00:11:57,540 INFO L78 Accepts]: Start accepts. Automaton has 6308 states and 16810 transitions. Word has length 7 [2022-11-22 00:11:57,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:57,541 INFO L495 AbstractCegarLoop]: Abstraction has 6308 states and 16810 transitions. [2022-11-22 00:11:57,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-22 00:11:57,541 INFO L276 IsEmpty]: Start isEmpty. Operand 6308 states and 16810 transitions. [2022-11-22 00:11:57,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 00:11:57,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:57,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:11:57,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:11:57,544 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-22 00:11:57,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:57,545 INFO L85 PathProgramCache]: Analyzing trace with hash 681466466, now seen corresponding path program 1 times [2022-11-22 00:11:57,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:57,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796769910] [2022-11-22 00:11:57,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:57,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:57,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:11:57,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:57,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796769910] [2022-11-22 00:11:57,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796769910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:57,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:11:57,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:11:57,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762455082] [2022-11-22 00:11:57,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:57,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:11:57,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:57,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:11:57,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:11:57,615 INFO L87 Difference]: Start difference. First operand 6308 states and 16810 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-22 00:11:57,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:57,856 INFO L93 Difference]: Finished difference Result 10112 states and 27115 transitions. [2022-11-22 00:11:57,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:11:57,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-22 00:11:57,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:57,909 INFO L225 Difference]: With dead ends: 10112 [2022-11-22 00:11:57,909 INFO L226 Difference]: Without dead ends: 10112 [2022-11-22 00:11:57,909 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 [2022-11-22 00:11:57,910 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 96 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:57,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 162 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:11:57,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10112 states. [2022-11-22 00:11:58,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10112 to 6632. [2022-11-22 00:11:58,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6632 states, 6486 states have (on average 2.724946037619488) internal successors, (17674), 6631 states have internal predecessors, (17674), 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) [2022-11-22 00:11:58,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6632 states to 6632 states and 17674 transitions. [2022-11-22 00:11:58,188 INFO L78 Accepts]: Start accepts. Automaton has 6632 states and 17674 transitions. Word has length 9 [2022-11-22 00:11:58,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:58,189 INFO L495 AbstractCegarLoop]: Abstraction has 6632 states and 17674 transitions. [2022-11-22 00:11:58,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2022-11-22 00:11:58,189 INFO L276 IsEmpty]: Start isEmpty. Operand 6632 states and 17674 transitions. [2022-11-22 00:11:58,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 00:11:58,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:58,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:11:58,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:11:58,191 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-22 00:11:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:58,191 INFO L85 PathProgramCache]: Analyzing trace with hash -728320390, now seen corresponding path program 1 times [2022-11-22 00:11:58,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:58,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223169790] [2022-11-22 00:11:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:58,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:11:58,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:11:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:11:58,245 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:11:58,246 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:11:58,247 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2022-11-22 00:11:58,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2022-11-22 00:11:58,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2022-11-22 00:11:58,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2022-11-22 00:11:58,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2022-11-22 00:11:58,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2022-11-22 00:11:58,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2022-11-22 00:11:58,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2022-11-22 00:11:58,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2022-11-22 00:11:58,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2022-11-22 00:11:58,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2022-11-22 00:11:58,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2022-11-22 00:11:58,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2022-11-22 00:11:58,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2022-11-22 00:11:58,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2022-11-22 00:11:58,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2022-11-22 00:11:58,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2022-11-22 00:11:58,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2022-11-22 00:11:58,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2022-11-22 00:11:58,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2022-11-22 00:11:58,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2022-11-22 00:11:58,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2022-11-22 00:11:58,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2022-11-22 00:11:58,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2022-11-22 00:11:58,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2022-11-22 00:11:58,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2022-11-22 00:11:58,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2022-11-22 00:11:58,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2022-11-22 00:11:58,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2022-11-22 00:11:58,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 56 remaining) [2022-11-22 00:11:58,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 56 remaining) [2022-11-22 00:11:58,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2022-11-22 00:11:58,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2022-11-22 00:11:58,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2022-11-22 00:11:58,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2022-11-22 00:11:58,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2022-11-22 00:11:58,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2022-11-22 00:11:58,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2022-11-22 00:11:58,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2022-11-22 00:11:58,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2022-11-22 00:11:58,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2022-11-22 00:11:58,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2022-11-22 00:11:58,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2022-11-22 00:11:58,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2022-11-22 00:11:58,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2022-11-22 00:11:58,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2022-11-22 00:11:58,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2022-11-22 00:11:58,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2022-11-22 00:11:58,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2022-11-22 00:11:58,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2022-11-22 00:11:58,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2022-11-22 00:11:58,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2022-11-22 00:11:58,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2022-11-22 00:11:58,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2022-11-22 00:11:58,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2022-11-22 00:11:58,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2022-11-22 00:11:58,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:11:58,265 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-22 00:11:58,272 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 00:11:58,272 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:11:58,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:11:58 BasicIcfg [2022-11-22 00:11:58,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:11:58,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:11:58,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:11:58,302 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:11:58,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:11:51" (3/4) ... [2022-11-22 00:11:58,306 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 00:11:58,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:11:58,307 INFO L158 Benchmark]: Toolchain (without parser) took 8534.43ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 156.3MB in the beginning and 125.1MB in the end (delta: 31.2MB). Peak memory consumption was 137.7MB. Max. memory is 16.1GB. [2022-11-22 00:11:58,307 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 136.3MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:11:58,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 603.83ms. Allocated memory is still 188.7MB. Free memory was 156.3MB in the beginning and 136.0MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 00:11:58,308 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.81ms. Allocated memory is still 188.7MB. Free memory was 136.0MB in the beginning and 134.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:11:58,308 INFO L158 Benchmark]: Boogie Preprocessor took 33.92ms. Allocated memory is still 188.7MB. Free memory was 134.0MB in the beginning and 131.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:11:58,309 INFO L158 Benchmark]: RCFGBuilder took 590.39ms. Allocated memory is still 188.7MB. Free memory was 131.9MB in the beginning and 112.9MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 00:11:58,311 INFO L158 Benchmark]: TraceAbstraction took 7246.35ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 112.2MB in the beginning and 125.1MB in the end (delta: -12.9MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. [2022-11-22 00:11:58,312 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 293.6MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:11:58,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 136.3MB. Free memory is still 77.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 603.83ms. Allocated memory is still 188.7MB. Free memory was 156.3MB in the beginning and 136.0MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.81ms. Allocated memory is still 188.7MB. Free memory was 136.0MB in the beginning and 134.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.92ms. Allocated memory is still 188.7MB. Free memory was 134.0MB in the beginning and 131.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 590.39ms. Allocated memory is still 188.7MB. Free memory was 131.9MB in the beginning and 112.9MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7246.35ms. Allocated memory was 188.7MB in the beginning and 293.6MB in the end (delta: 104.9MB). Free memory was 112.2MB in the beginning and 125.1MB in the end (delta: -12.9MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 293.6MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 210 PlacesBefore, 122 PlacesAfterwards, 225 TransitionsBefore, 137 TransitionsAfterwards, 19656 CoEnabledTransitionPairs, 5 FixpointIterations, 27 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 0 ChoiceCompositions, 116 TotalNumberOfCompositions, 83572 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21890, independent: 20911, independent conditional: 0, independent unconditional: 20911, dependent: 979, dependent conditional: 0, dependent unconditional: 979, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11083, independent: 10841, independent conditional: 0, independent unconditional: 10841, dependent: 242, dependent conditional: 0, dependent unconditional: 242, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11083, independent: 10650, independent conditional: 0, independent unconditional: 10650, dependent: 433, dependent conditional: 0, dependent unconditional: 433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 433, independent: 191, independent conditional: 0, independent unconditional: 191, dependent: 242, dependent conditional: 0, dependent unconditional: 242, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 447, independent: 165, independent conditional: 0, independent unconditional: 165, dependent: 281, dependent conditional: 0, dependent unconditional: 281, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 21890, independent: 10070, independent conditional: 0, independent unconditional: 10070, dependent: 737, dependent conditional: 0, dependent unconditional: 737, unknown: 11083, unknown conditional: 0, unknown unconditional: 11083] , Statistics on independence cache: Total cache size (in pairs): 2493, Positive cache size: 2320, Positive conditional cache size: 0, Positive unconditional cache size: 2320, Negative cache size: 173, Negative conditional cache size: 0, Negative unconditional cache size: 173, 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: 703]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; [L685] 0 int x; [L719] 0 pthread_t t1, t2; [L720] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={3:0}, t2={5:0}, x=0] [L687] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, x=0] [L721] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={3:0}, t2={5:0}, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=50, x=0] [L688] 1 flag2 >= 3 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=50, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=50, x=0] Now there is a data race on ~flag2~0 between C: flag2 >= 3 [688] and C: flag2 = 1 [703] - UnprovableResult [Line: 704]: 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: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: 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 there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: 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: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: 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: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: 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. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 354 locations, 56 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 301 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 301 mSDsluCounter, 731 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 226 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 591 IncrementalHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 505 mSDtfsCounter, 591 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8373occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 7108 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate proved your program to be incorrect! [2022-11-22 00:11:58,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c696d7f2-c9a9-4cfe-956f-cb6c924a51c6/bin/utaipan-g80aRyZoba/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