./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/airline-5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/airline-5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh --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 b3375d634339bd0477387b7559c4eae5ae554f112c0f1d9d1b21e4edc4514353 --- 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-2329fc7 [2022-12-14 10:10:53,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:10:53,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:10:53,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:10:53,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:10:53,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:10:53,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:10:53,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:10:53,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:10:53,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:10:53,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:10:53,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:10:53,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:10:53,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:10:53,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:10:53,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:10:53,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:10:53,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:10:53,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:10:53,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:10:53,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:10:53,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:10:53,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:10:53,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:10:53,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:10:53,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:10:53,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:10:53,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:10:53,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:10:53,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:10:53,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:10:53,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:10:53,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:10:53,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:10:53,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:10:53,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:10:53,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:10:53,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:10:53,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:10:53,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:10:53,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:10:53,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 10:10:53,437 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:10:53,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:10:53,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:10:53,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:10:53,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:10:53,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:10:53,439 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:10:53,439 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:10:53,439 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:10:53,439 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:10:53,439 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:10:53,439 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:10:53,439 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:10:53,440 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:10:53,440 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:10:53,440 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:10:53,440 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:10:53,440 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:10:53,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:10:53,441 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:10:53,441 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:10:53,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:10:53,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:10:53,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:10:53,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:10:53,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:10:53,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:10:53,442 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 10:10:53,442 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:10:53,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:10:53,443 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:10:53,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:10:53,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:10:53,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:10:53,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:10:53,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:10:53,444 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:10:53,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:10:53,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:10:53,444 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:10:53,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:10:53,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:10:53,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:10:53,445 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_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3375d634339bd0477387b7559c4eae5ae554f112c0f1d9d1b21e4edc4514353 [2022-12-14 10:10:53,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:10:53,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:10:53,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:10:53,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:10:53,665 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:10:53,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-deagle/airline-5.i [2022-12-14 10:10:56,236 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:10:56,457 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:10:56,457 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/sv-benchmarks/c/pthread-deagle/airline-5.i [2022-12-14 10:10:56,471 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/data/1858ba308/d153c66e0e1b4534afcf4fd1b9dd9a58/FLAGd61e7647e [2022-12-14 10:10:56,812 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/data/1858ba308/d153c66e0e1b4534afcf4fd1b9dd9a58 [2022-12-14 10:10:56,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:10:56,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:10:56,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:10:56,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:10:56,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:10:56,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:10:56" (1/1) ... [2022-12-14 10:10:56,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70203ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:56, skipping insertion in model container [2022-12-14 10:10:56,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:10:56" (1/1) ... [2022-12-14 10:10:56,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:10:56,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:10:57,062 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:10:57,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:10:57,063 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:10:57,064 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:10:57,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:10:57,066 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:10:57,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:10:57,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:10:57,067 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:10:57,068 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:10:57,074 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_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/sv-benchmarks/c/pthread-deagle/airline-5.i[32089,32102] [2022-12-14 10:10:57,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:10:57,082 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:10:57,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:10:57,109 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:10:57,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:10:57,110 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:10:57,111 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:10:57,112 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:10:57,112 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:10:57,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:10:57,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 10:10:57,113 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 10:10:57,116 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_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/sv-benchmarks/c/pthread-deagle/airline-5.i[32089,32102] [2022-12-14 10:10:57,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:10:57,138 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:10:57,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57 WrapperNode [2022-12-14 10:10:57,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:10:57,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:10:57,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:10:57,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:10:57,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (1/1) ... [2022-12-14 10:10:57,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (1/1) ... [2022-12-14 10:10:57,170 INFO L138 Inliner]: procedures = 162, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-12-14 10:10:57,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:10:57,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:10:57,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:10:57,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:10:57,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (1/1) ... [2022-12-14 10:10:57,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (1/1) ... [2022-12-14 10:10:57,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (1/1) ... [2022-12-14 10:10:57,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (1/1) ... [2022-12-14 10:10:57,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (1/1) ... [2022-12-14 10:10:57,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (1/1) ... [2022-12-14 10:10:57,197 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (1/1) ... [2022-12-14 10:10:57,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (1/1) ... [2022-12-14 10:10:57,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:10:57,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:10:57,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:10:57,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:10:57,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (1/1) ... [2022-12-14 10:10:57,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:10:57,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:10:57,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:10:57,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:10:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:10:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:10:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 10:10:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:10:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:10:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2022-12-14 10:10:57,267 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2022-12-14 10:10:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:10:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:10:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 10:10:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:10:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:10:57,269 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 10:10:57,373 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:10:57,375 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:10:57,523 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:10:57,557 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:10:57,557 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 10:10:57,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:10:57 BoogieIcfgContainer [2022-12-14 10:10:57,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:10:57,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:10:57,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:10:57,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:10:57,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:10:56" (1/3) ... [2022-12-14 10:10:57,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c74c4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:10:57, skipping insertion in model container [2022-12-14 10:10:57,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:10:57" (2/3) ... [2022-12-14 10:10:57,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c74c4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:10:57, skipping insertion in model container [2022-12-14 10:10:57,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:10:57" (3/3) ... [2022-12-14 10:10:57,568 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-5.i [2022-12-14 10:10:57,577 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 10:10:57,585 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:10:57,585 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-12-14 10:10:57,585 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 10:10:57,627 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 10:10:57,648 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:10:57,658 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 88 transitions, 184 flow [2022-12-14 10:10:57,660 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 88 transitions, 184 flow [2022-12-14 10:10:57,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 88 transitions, 184 flow [2022-12-14 10:10:57,695 INFO L130 PetriNetUnfolder]: 9/119 cut-off events. [2022-12-14 10:10:57,695 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 10:10:57,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 119 events. 9/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 240 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 58. Up to 4 conditions per place. [2022-12-14 10:10:57,700 INFO L119 LiptonReduction]: Number of co-enabled transitions 1332 [2022-12-14 10:10:59,559 INFO L134 LiptonReduction]: Checked pairs total: 2057 [2022-12-14 10:10:59,559 INFO L136 LiptonReduction]: Total number of compositions: 100 [2022-12-14 10:10:59,566 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 24 transitions, 56 flow [2022-12-14 10:10:59,577 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82 states, 51 states have (on average 3.0) internal successors, (153), 81 states have internal predecessors, (153), 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) [2022-12-14 10:10:59,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:10:59,594 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;@2b211fc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:10:59,594 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-12-14 10:10:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 51 states have (on average 3.0) internal successors, (153), 81 states have internal predecessors, (153), 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) [2022-12-14 10:10:59,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 10:10:59,599 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:59,600 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 10:10:59,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-12-14 10:10:59,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:59,603 INFO L85 PathProgramCache]: Analyzing trace with hash 401, now seen corresponding path program 1 times [2022-12-14 10:10:59,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:59,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279261866] [2022-12-14 10:10:59,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:59,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:10:59,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:10:59,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:10:59,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279261866] [2022-12-14 10:10:59,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279261866] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:10:59,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:10:59,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 10:10:59,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818334954] [2022-12-14 10:10:59,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:10:59,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:10:59,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:10:59,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:10:59,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:10:59,712 INFO L87 Difference]: Start difference. First operand has 82 states, 51 states have (on average 3.0) internal successors, (153), 81 states have internal predecessors, (153), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 10:10:59,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:10:59,740 INFO L93 Difference]: Finished difference Result 31 states and 53 transitions. [2022-12-14 10:10:59,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:10:59,742 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 10:10:59,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:10:59,747 INFO L225 Difference]: With dead ends: 31 [2022-12-14 10:10:59,747 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 10:10:59,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:10:59,750 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:10:59,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:10:59,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 10:10:59,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 10:10:59,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 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) [2022-12-14 10:10:59,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 24 transitions. [2022-12-14 10:10:59,772 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 24 transitions. Word has length 1 [2022-12-14 10:10:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:10:59,773 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 24 transitions. [2022-12-14 10:10:59,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 10:10:59,773 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2022-12-14 10:10:59,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 10:10:59,773 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:10:59,773 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 10:10:59,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:10:59,774 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-12-14 10:10:59,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:10:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1013855672, now seen corresponding path program 1 times [2022-12-14 10:10:59,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:10:59,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829472239] [2022-12-14 10:10:59,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:10:59,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:10:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:10:59,800 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:10:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:10:59,825 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:10:59,825 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:10:59,827 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2022-12-14 10:10:59,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-12-14 10:10:59,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-12-14 10:10:59,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-12-14 10:10:59,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-12-14 10:10:59,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-12-14 10:10:59,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-12-14 10:10:59,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-12-14 10:10:59,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-12-14 10:10:59,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-12-14 10:10:59,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-12-14 10:10:59,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-12-14 10:10:59,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-12-14 10:10:59,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-12-14 10:10:59,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:10:59,833 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 10:10:59,835 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 10:10:59,835 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-14 10:10:59,849 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 10:10:59,851 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:10:59,856 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 108 transitions, 234 flow [2022-12-14 10:10:59,856 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 108 transitions, 234 flow [2022-12-14 10:10:59,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 108 transitions, 234 flow [2022-12-14 10:10:59,886 INFO L130 PetriNetUnfolder]: 18/209 cut-off events. [2022-12-14 10:10:59,886 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-14 10:10:59,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 209 events. 18/209 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 515 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 121. Up to 8 conditions per place. [2022-12-14 10:10:59,889 INFO L119 LiptonReduction]: Number of co-enabled transitions 3708 [2022-12-14 10:11:01,842 INFO L134 LiptonReduction]: Checked pairs total: 13948 [2022-12-14 10:11:01,843 INFO L136 LiptonReduction]: Total number of compositions: 115 [2022-12-14 10:11:01,843 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 46 transitions, 110 flow [2022-12-14 10:11:01,899 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2005 states, 1845 states have (on average 3.1235772357723577) internal successors, (5763), 2004 states have internal predecessors, (5763), 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) [2022-12-14 10:11:01,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:11:01,901 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;@2b211fc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:11:01,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-12-14 10:11:01,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 2005 states, 1845 states have (on average 3.1235772357723577) internal successors, (5763), 2004 states have internal predecessors, (5763), 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) [2022-12-14 10:11:01,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 10:11:01,906 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:01,906 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 10:11:01,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-12-14 10:11:01,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:01,907 INFO L85 PathProgramCache]: Analyzing trace with hash 644, now seen corresponding path program 1 times [2022-12-14 10:11:01,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:01,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157500369] [2022-12-14 10:11:01,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:01,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:01,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:01,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157500369] [2022-12-14 10:11:01,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157500369] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:01,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:01,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 10:11:01,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940432808] [2022-12-14 10:11:01,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:01,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:11:01,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:01,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:11:01,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:11:01,928 INFO L87 Difference]: Start difference. First operand has 2005 states, 1845 states have (on average 3.1235772357723577) internal successors, (5763), 2004 states have internal predecessors, (5763), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 10:11:01,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:01,984 INFO L93 Difference]: Finished difference Result 1309 states and 3621 transitions. [2022-12-14 10:11:01,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:11:01,985 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 10:11:01,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:02,000 INFO L225 Difference]: With dead ends: 1309 [2022-12-14 10:11:02,000 INFO L226 Difference]: Without dead ends: 1260 [2022-12-14 10:11:02,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:11:02,002 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:02,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:11:02,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2022-12-14 10:11:02,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1260. [2022-12-14 10:11:02,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 1215 states have (on average 2.8576131687242796) internal successors, (3472), 1259 states have internal predecessors, (3472), 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) [2022-12-14 10:11:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 3472 transitions. [2022-12-14 10:11:02,074 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 3472 transitions. Word has length 1 [2022-12-14 10:11:02,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:02,074 INFO L495 AbstractCegarLoop]: Abstraction has 1260 states and 3472 transitions. [2022-12-14 10:11:02,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 10:11:02,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 3472 transitions. [2022-12-14 10:11:02,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 10:11:02,075 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:02,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 10:11:02,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:11:02,075 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-12-14 10:11:02,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:02,075 INFO L85 PathProgramCache]: Analyzing trace with hash 19755252, now seen corresponding path program 1 times [2022-12-14 10:11:02,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:02,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379054326] [2022-12-14 10:11:02,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:02,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:02,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:02,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:02,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379054326] [2022-12-14 10:11:02,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379054326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:02,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:02,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:11:02,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889316401] [2022-12-14 10:11:02,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:02,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:11:02,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:02,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:11:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:11:02,145 INFO L87 Difference]: Start difference. First operand 1260 states and 3472 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:02,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:02,187 INFO L93 Difference]: Finished difference Result 1260 states and 3471 transitions. [2022-12-14 10:11:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:11:02,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 10:11:02,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:02,203 INFO L225 Difference]: With dead ends: 1260 [2022-12-14 10:11:02,203 INFO L226 Difference]: Without dead ends: 1260 [2022-12-14 10:11:02,203 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 [2022-12-14 10:11:02,204 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 13 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:02,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 34 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:11:02,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2022-12-14 10:11:02,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1260. [2022-12-14 10:11:02,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 1215 states have (on average 2.8567901234567903) internal successors, (3471), 1259 states have internal predecessors, (3471), 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) [2022-12-14 10:11:02,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 3471 transitions. [2022-12-14 10:11:02,229 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 3471 transitions. Word has length 4 [2022-12-14 10:11:02,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:02,229 INFO L495 AbstractCegarLoop]: Abstraction has 1260 states and 3471 transitions. [2022-12-14 10:11:02,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:02,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 3471 transitions. [2022-12-14 10:11:02,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:11:02,229 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:02,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:11:02,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:11:02,230 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-12-14 10:11:02,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:02,230 INFO L85 PathProgramCache]: Analyzing trace with hash 613562878, now seen corresponding path program 1 times [2022-12-14 10:11:02,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:02,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114482359] [2022-12-14 10:11:02,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:02,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:02,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:02,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114482359] [2022-12-14 10:11:02,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114482359] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:02,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:02,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:11:02,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294788034] [2022-12-14 10:11:02,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:02,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:11:02,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:02,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:11:02,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:11:02,258 INFO L87 Difference]: Start difference. First operand 1260 states and 3471 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) [2022-12-14 10:11:02,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:02,312 INFO L93 Difference]: Finished difference Result 1379 states and 3493 transitions. [2022-12-14 10:11:02,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:11:02,313 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 [2022-12-14 10:11:02,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:02,319 INFO L225 Difference]: With dead ends: 1379 [2022-12-14 10:11:02,319 INFO L226 Difference]: Without dead ends: 1379 [2022-12-14 10:11:02,320 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 [2022-12-14 10:11:02,321 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 29 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:02,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 32 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:11:02,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2022-12-14 10:11:02,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1107. [2022-12-14 10:11:02,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1074 states have (on average 2.793296089385475) internal successors, (3000), 1106 states have internal predecessors, (3000), 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) [2022-12-14 10:11:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 3000 transitions. [2022-12-14 10:11:02,350 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 3000 transitions. Word has length 5 [2022-12-14 10:11:02,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:02,351 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 3000 transitions. [2022-12-14 10:11:02,351 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) [2022-12-14 10:11:02,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 3000 transitions. [2022-12-14 10:11:02,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 10:11:02,351 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:02,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:11:02,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:11:02,351 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-12-14 10:11:02,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:02,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1223460521, now seen corresponding path program 1 times [2022-12-14 10:11:02,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:02,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509173077] [2022-12-14 10:11:02,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:02,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:02,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:02,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509173077] [2022-12-14 10:11:02,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509173077] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:02,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:02,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:11:02,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561411487] [2022-12-14 10:11:02,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:02,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:11:02,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:02,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:11:02,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:11:02,386 INFO L87 Difference]: Start difference. First operand 1107 states and 3000 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) [2022-12-14 10:11:02,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:02,443 INFO L93 Difference]: Finished difference Result 991 states and 2491 transitions. [2022-12-14 10:11:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:11:02,443 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 [2022-12-14 10:11:02,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:02,447 INFO L225 Difference]: With dead ends: 991 [2022-12-14 10:11:02,448 INFO L226 Difference]: Without dead ends: 879 [2022-12-14 10:11:02,448 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 [2022-12-14 10:11:02,449 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 27 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:02,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 32 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:11:02,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2022-12-14 10:11:02,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 823. [2022-12-14 10:11:02,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 799 states have (on average 2.6057571964956194) internal successors, (2082), 822 states have internal predecessors, (2082), 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) [2022-12-14 10:11:02,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 2082 transitions. [2022-12-14 10:11:02,470 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 2082 transitions. Word has length 7 [2022-12-14 10:11:02,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:02,471 INFO L495 AbstractCegarLoop]: Abstraction has 823 states and 2082 transitions. [2022-12-14 10:11:02,471 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) [2022-12-14 10:11:02,471 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 2082 transitions. [2022-12-14 10:11:02,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:11:02,471 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:02,471 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 10:11:02,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:11:02,472 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-12-14 10:11:02,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:02,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1424026580, now seen corresponding path program 1 times [2022-12-14 10:11:02,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:02,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934766187] [2022-12-14 10:11:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:02,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:11:02,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:11:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:11:02,493 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:11:02,493 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:11:02,493 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-12-14 10:11:02,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2022-12-14 10:11:02,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2022-12-14 10:11:02,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2022-12-14 10:11:02,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2022-12-14 10:11:02,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2022-12-14 10:11:02,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2022-12-14 10:11:02,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2022-12-14 10:11:02,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2022-12-14 10:11:02,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2022-12-14 10:11:02,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2022-12-14 10:11:02,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2022-12-14 10:11:02,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2022-12-14 10:11:02,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2022-12-14 10:11:02,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2022-12-14 10:11:02,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2022-12-14 10:11:02,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2022-12-14 10:11:02,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2022-12-14 10:11:02,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:11:02,496 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 10:11:02,496 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 10:11:02,496 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-14 10:11:02,509 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-14 10:11:02,511 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:11:02,511 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 128 transitions, 286 flow [2022-12-14 10:11:02,512 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 128 transitions, 286 flow [2022-12-14 10:11:02,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 128 transitions, 286 flow [2022-12-14 10:11:02,558 INFO L130 PetriNetUnfolder]: 34/360 cut-off events. [2022-12-14 10:11:02,558 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-14 10:11:02,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 360 events. 34/360 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1094 event pairs, 1 based on Foata normal form. 0/291 useless extension candidates. Maximal degree in co-relation 217. Up to 16 conditions per place. [2022-12-14 10:11:02,568 INFO L119 LiptonReduction]: Number of co-enabled transitions 6696 [2022-12-14 10:11:04,411 INFO L134 LiptonReduction]: Checked pairs total: 31607 [2022-12-14 10:11:04,411 INFO L136 LiptonReduction]: Total number of compositions: 129 [2022-12-14 10:11:04,412 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 64 transitions, 158 flow [2022-12-14 10:11:04,964 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 29692 states, 28792 states have (on average 4.097804945818283) internal successors, (117984), 29691 states have internal predecessors, (117984), 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) [2022-12-14 10:11:04,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:11:04,965 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;@2b211fc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:11:04,966 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-14 10:11:05,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 29692 states, 28792 states have (on average 4.097804945818283) internal successors, (117984), 29691 states have internal predecessors, (117984), 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) [2022-12-14 10:11:05,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 10:11:05,026 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:05,026 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 10:11:05,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 10:11:05,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:05,027 INFO L85 PathProgramCache]: Analyzing trace with hash 913, now seen corresponding path program 1 times [2022-12-14 10:11:05,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:05,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291488326] [2022-12-14 10:11:05,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:05,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:05,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:05,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:05,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291488326] [2022-12-14 10:11:05,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291488326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:05,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:05,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 10:11:05,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959293393] [2022-12-14 10:11:05,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:05,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:11:05,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:05,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:11:05,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:11:05,063 INFO L87 Difference]: Start difference. First operand has 29692 states, 28792 states have (on average 4.097804945818283) internal successors, (117984), 29691 states have internal predecessors, (117984), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 10:11:05,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:05,318 INFO L93 Difference]: Finished difference Result 16783 states and 65102 transitions. [2022-12-14 10:11:05,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:11:05,319 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 10:11:05,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:05,437 INFO L225 Difference]: With dead ends: 16783 [2022-12-14 10:11:05,437 INFO L226 Difference]: Without dead ends: 16424 [2022-12-14 10:11:05,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:11:05,438 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:05,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:11:05,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16424 states. [2022-12-14 10:11:05,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16424 to 16424. [2022-12-14 10:11:05,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16424 states, 16251 states have (on average 3.9100978401329147) internal successors, (63543), 16423 states have internal predecessors, (63543), 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) [2022-12-14 10:11:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16424 states to 16424 states and 63543 transitions. [2022-12-14 10:11:06,003 INFO L78 Accepts]: Start accepts. Automaton has 16424 states and 63543 transitions. Word has length 1 [2022-12-14 10:11:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:06,003 INFO L495 AbstractCegarLoop]: Abstraction has 16424 states and 63543 transitions. [2022-12-14 10:11:06,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 10:11:06,003 INFO L276 IsEmpty]: Start isEmpty. Operand 16424 states and 63543 transitions. [2022-12-14 10:11:06,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 10:11:06,004 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:06,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 10:11:06,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:11:06,004 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 10:11:06,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:06,005 INFO L85 PathProgramCache]: Analyzing trace with hash 28304241, now seen corresponding path program 1 times [2022-12-14 10:11:06,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:06,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935389066] [2022-12-14 10:11:06,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:06,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:06,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:06,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:06,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935389066] [2022-12-14 10:11:06,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935389066] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:06,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:06,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:11:06,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260686077] [2022-12-14 10:11:06,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:06,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:11:06,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:06,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:11:06,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:11:06,037 INFO L87 Difference]: Start difference. First operand 16424 states and 63543 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:06,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:06,242 INFO L93 Difference]: Finished difference Result 16424 states and 63542 transitions. [2022-12-14 10:11:06,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:11:06,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 10:11:06,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:06,297 INFO L225 Difference]: With dead ends: 16424 [2022-12-14 10:11:06,298 INFO L226 Difference]: Without dead ends: 16424 [2022-12-14 10:11:06,298 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 [2022-12-14 10:11:06,299 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 13 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:06,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 42 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:11:06,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16424 states. [2022-12-14 10:11:06,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16424 to 16424. [2022-12-14 10:11:06,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16424 states, 16251 states have (on average 3.9100363054581257) internal successors, (63542), 16423 states have internal predecessors, (63542), 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) [2022-12-14 10:11:06,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16424 states to 16424 states and 63542 transitions. [2022-12-14 10:11:06,700 INFO L78 Accepts]: Start accepts. Automaton has 16424 states and 63542 transitions. Word has length 4 [2022-12-14 10:11:06,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:06,701 INFO L495 AbstractCegarLoop]: Abstraction has 16424 states and 63542 transitions. [2022-12-14 10:11:06,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:06,701 INFO L276 IsEmpty]: Start isEmpty. Operand 16424 states and 63542 transitions. [2022-12-14 10:11:06,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:11:06,701 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:06,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:11:06,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:11:06,701 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 10:11:06,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:06,702 INFO L85 PathProgramCache]: Analyzing trace with hash 878813789, now seen corresponding path program 1 times [2022-12-14 10:11:06,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:06,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138571569] [2022-12-14 10:11:06,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:06,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:06,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:06,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138571569] [2022-12-14 10:11:06,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138571569] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:06,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:06,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:11:06,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521643870] [2022-12-14 10:11:06,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:06,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:11:06,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:06,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:11:06,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:11:06,719 INFO L87 Difference]: Start difference. First operand 16424 states and 63542 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) [2022-12-14 10:11:06,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:06,901 INFO L93 Difference]: Finished difference Result 19618 states and 68953 transitions. [2022-12-14 10:11:06,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:11:06,902 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 [2022-12-14 10:11:06,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:06,989 INFO L225 Difference]: With dead ends: 19618 [2022-12-14 10:11:06,989 INFO L226 Difference]: Without dead ends: 19618 [2022-12-14 10:11:06,989 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 [2022-12-14 10:11:06,990 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 42 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:06,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 37 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:11:07,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19618 states. [2022-12-14 10:11:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19618 to 14734. [2022-12-14 10:11:07,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14734 states, 14589 states have (on average 3.8263760367400095) internal successors, (55823), 14733 states have internal predecessors, (55823), 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) [2022-12-14 10:11:07,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14734 states to 14734 states and 55823 transitions. [2022-12-14 10:11:07,482 INFO L78 Accepts]: Start accepts. Automaton has 14734 states and 55823 transitions. Word has length 5 [2022-12-14 10:11:07,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:07,483 INFO L495 AbstractCegarLoop]: Abstraction has 14734 states and 55823 transitions. [2022-12-14 10:11:07,483 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) [2022-12-14 10:11:07,483 INFO L276 IsEmpty]: Start isEmpty. Operand 14734 states and 55823 transitions. [2022-12-14 10:11:07,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 10:11:07,483 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:07,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:11:07,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 10:11:07,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 10:11:07,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:07,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1568428425, now seen corresponding path program 1 times [2022-12-14 10:11:07,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:07,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581803011] [2022-12-14 10:11:07,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:07,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:07,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:07,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581803011] [2022-12-14 10:11:07,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581803011] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:07,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:07,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:11:07,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117621553] [2022-12-14 10:11:07,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:07,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:11:07,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:07,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:11:07,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:11:07,510 INFO L87 Difference]: Start difference. First operand 14734 states and 55823 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) [2022-12-14 10:11:07,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:07,671 INFO L93 Difference]: Finished difference Result 15472 states and 53563 transitions. [2022-12-14 10:11:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:11:07,672 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 [2022-12-14 10:11:07,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:07,783 INFO L225 Difference]: With dead ends: 15472 [2022-12-14 10:11:07,783 INFO L226 Difference]: Without dead ends: 14729 [2022-12-14 10:11:07,784 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 [2022-12-14 10:11:07,784 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 40 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:07,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 38 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:11:07,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14729 states. [2022-12-14 10:11:08,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14729 to 12153. [2022-12-14 10:11:08,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12153 states, 12053 states have (on average 3.5635941259437485) internal successors, (42952), 12152 states have internal predecessors, (42952), 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) [2022-12-14 10:11:08,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12153 states to 12153 states and 42952 transitions. [2022-12-14 10:11:08,056 INFO L78 Accepts]: Start accepts. Automaton has 12153 states and 42952 transitions. Word has length 7 [2022-12-14 10:11:08,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:08,056 INFO L495 AbstractCegarLoop]: Abstraction has 12153 states and 42952 transitions. [2022-12-14 10:11:08,056 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) [2022-12-14 10:11:08,056 INFO L276 IsEmpty]: Start isEmpty. Operand 12153 states and 42952 transitions. [2022-12-14 10:11:08,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 10:11:08,059 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:08,059 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:11:08,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 10:11:08,059 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 10:11:08,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:08,059 INFO L85 PathProgramCache]: Analyzing trace with hash -293065867, now seen corresponding path program 1 times [2022-12-14 10:11:08,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:08,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717930816] [2022-12-14 10:11:08,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:08,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:08,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:08,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:08,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717930816] [2022-12-14 10:11:08,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717930816] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:11:08,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212731164] [2022-12-14 10:11:08,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:08,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:11:08,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:11:08,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:11:08,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:11:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:08,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 10:11:08,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:11:08,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:11:08,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:11:08,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212731164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:08,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:11:08,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-14 10:11:08,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733747311] [2022-12-14 10:11:08,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:08,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:11:08,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:08,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:11:08,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:11:08,174 INFO L87 Difference]: Start difference. First operand 12153 states and 42952 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-12-14 10:11:08,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:08,266 INFO L93 Difference]: Finished difference Result 9513 states and 33230 transitions. [2022-12-14 10:11:08,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:11:08,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-12-14 10:11:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:08,297 INFO L225 Difference]: With dead ends: 9513 [2022-12-14 10:11:08,297 INFO L226 Difference]: Without dead ends: 9507 [2022-12-14 10:11:08,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:11:08,298 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 38 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:08,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 58 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:11:08,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9507 states. [2022-12-14 10:11:08,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9507 to 9393. [2022-12-14 10:11:08,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9393 states, 9320 states have (on average 3.538841201716738) internal successors, (32982), 9392 states have internal predecessors, (32982), 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) [2022-12-14 10:11:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9393 states to 9393 states and 32982 transitions. [2022-12-14 10:11:08,497 INFO L78 Accepts]: Start accepts. Automaton has 9393 states and 32982 transitions. Word has length 14 [2022-12-14 10:11:08,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:08,498 INFO L495 AbstractCegarLoop]: Abstraction has 9393 states and 32982 transitions. [2022-12-14 10:11:08,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-12-14 10:11:08,498 INFO L276 IsEmpty]: Start isEmpty. Operand 9393 states and 32982 transitions. [2022-12-14 10:11:08,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 10:11:08,500 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:08,500 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:11:08,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:11:08,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 10:11:08,702 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 10:11:08,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:08,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2076939116, now seen corresponding path program 1 times [2022-12-14 10:11:08,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:08,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280449547] [2022-12-14 10:11:08,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:08,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:08,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:11:08,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:08,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280449547] [2022-12-14 10:11:08,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280449547] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:08,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:08,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:11:08,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496838711] [2022-12-14 10:11:08,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:08,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:11:08,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:08,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:11:08,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:11:08,901 INFO L87 Difference]: Start difference. First operand 9393 states and 32982 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-12-14 10:11:09,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:09,135 INFO L93 Difference]: Finished difference Result 11136 states and 34673 transitions. [2022-12-14 10:11:09,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:11:09,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 15 [2022-12-14 10:11:09,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:09,184 INFO L225 Difference]: With dead ends: 11136 [2022-12-14 10:11:09,185 INFO L226 Difference]: Without dead ends: 11118 [2022-12-14 10:11:09,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:11:09,185 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 223 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:09,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 77 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:11:09,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11118 states. [2022-12-14 10:11:09,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11118 to 8632. [2022-12-14 10:11:09,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8632 states, 8578 states have (on average 3.3556773140592213) internal successors, (28785), 8631 states have internal predecessors, (28785), 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) [2022-12-14 10:11:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8632 states to 8632 states and 28785 transitions. [2022-12-14 10:11:09,468 INFO L78 Accepts]: Start accepts. Automaton has 8632 states and 28785 transitions. Word has length 15 [2022-12-14 10:11:09,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:09,469 INFO L495 AbstractCegarLoop]: Abstraction has 8632 states and 28785 transitions. [2022-12-14 10:11:09,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-12-14 10:11:09,469 INFO L276 IsEmpty]: Start isEmpty. Operand 8632 states and 28785 transitions. [2022-12-14 10:11:09,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 10:11:09,470 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:09,470 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-12-14 10:11:09,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 10:11:09,471 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 10:11:09,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:09,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1003416675, now seen corresponding path program 1 times [2022-12-14 10:11:09,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:09,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461458399] [2022-12-14 10:11:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:09,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:11:09,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:11:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:11:09,496 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:11:09,496 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:11:09,496 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2022-12-14 10:11:09,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-12-14 10:11:09,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-12-14 10:11:09,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-12-14 10:11:09,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-12-14 10:11:09,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-12-14 10:11:09,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-12-14 10:11:09,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-12-14 10:11:09,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-12-14 10:11:09,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-12-14 10:11:09,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-12-14 10:11:09,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-12-14 10:11:09,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-12-14 10:11:09,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-12-14 10:11:09,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-12-14 10:11:09,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-12-14 10:11:09,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-12-14 10:11:09,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-12-14 10:11:09,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-12-14 10:11:09,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-12-14 10:11:09,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-12-14 10:11:09,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-12-14 10:11:09,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 10:11:09,499 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:11:09,500 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 10:11:09,500 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-12-14 10:11:09,514 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-14 10:11:09,515 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 10:11:09,515 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 148 transitions, 340 flow [2022-12-14 10:11:09,515 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 148 transitions, 340 flow [2022-12-14 10:11:09,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 148 transitions, 340 flow [2022-12-14 10:11:09,582 INFO L130 PetriNetUnfolder]: 66/635 cut-off events. [2022-12-14 10:11:09,582 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-12-14 10:11:09,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 690 conditions, 635 events. 66/635 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2535 event pairs, 6 based on Foata normal form. 0/518 useless extension candidates. Maximal degree in co-relation 380. Up to 32 conditions per place. [2022-12-14 10:11:09,597 INFO L119 LiptonReduction]: Number of co-enabled transitions 10440 [2022-12-14 10:11:11,554 INFO L134 LiptonReduction]: Checked pairs total: 50795 [2022-12-14 10:11:11,554 INFO L136 LiptonReduction]: Total number of compositions: 155 [2022-12-14 10:11:11,555 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 76 transitions, 196 flow [2022-12-14 10:11:19,244 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 352330 states, 347190 states have (on average 4.913882888332037) internal successors, (1706051), 352329 states have internal predecessors, (1706051), 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) [2022-12-14 10:11:19,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:11:19,245 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;@2b211fc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:11:19,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-12-14 10:11:19,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 352330 states, 347190 states have (on average 4.913882888332037) internal successors, (1706051), 352329 states have internal predecessors, (1706051), 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) [2022-12-14 10:11:19,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 10:11:19,680 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:19,680 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 10:11:19,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 10:11:19,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:19,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1235, now seen corresponding path program 1 times [2022-12-14 10:11:19,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:19,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331345623] [2022-12-14 10:11:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:19,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:19,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:19,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:19,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331345623] [2022-12-14 10:11:19,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331345623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:19,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:19,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 10:11:19,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000600330] [2022-12-14 10:11:19,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:19,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:11:19,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:19,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:11:19,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:11:20,125 INFO L87 Difference]: Start difference. First operand has 352330 states, 347190 states have (on average 4.913882888332037) internal successors, (1706051), 352329 states have internal predecessors, (1706051), 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 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 10:11:22,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:22,016 INFO L93 Difference]: Finished difference Result 165617 states and 782239 transitions. [2022-12-14 10:11:22,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:11:22,016 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 10:11:22,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:23,304 INFO L225 Difference]: With dead ends: 165617 [2022-12-14 10:11:23,304 INFO L226 Difference]: Without dead ends: 164118 [2022-12-14 10:11:23,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:11:23,305 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:23,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:11:23,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164118 states. [2022-12-14 10:11:27,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164118 to 164118. [2022-12-14 10:11:27,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164118 states, 163461 states have (on average 4.738072078355081) internal successors, (774490), 164117 states have internal predecessors, (774490), 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) [2022-12-14 10:11:29,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164118 states to 164118 states and 774490 transitions. [2022-12-14 10:11:29,179 INFO L78 Accepts]: Start accepts. Automaton has 164118 states and 774490 transitions. Word has length 1 [2022-12-14 10:11:29,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:29,179 INFO L495 AbstractCegarLoop]: Abstraction has 164118 states and 774490 transitions. [2022-12-14 10:11:29,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 10:11:29,179 INFO L276 IsEmpty]: Start isEmpty. Operand 164118 states and 774490 transitions. [2022-12-14 10:11:29,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 10:11:29,179 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:29,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 10:11:29,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 10:11:29,179 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 10:11:29,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:29,180 INFO L85 PathProgramCache]: Analyzing trace with hash 38201764, now seen corresponding path program 1 times [2022-12-14 10:11:29,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:29,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432601748] [2022-12-14 10:11:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:29,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:29,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:29,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:29,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432601748] [2022-12-14 10:11:29,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432601748] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:29,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:29,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:11:29,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648980731] [2022-12-14 10:11:29,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:29,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:11:29,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:29,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:11:29,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:11:29,199 INFO L87 Difference]: Start difference. First operand 164118 states and 774490 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:30,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:30,781 INFO L93 Difference]: Finished difference Result 164118 states and 774489 transitions. [2022-12-14 10:11:30,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:11:30,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 10:11:30,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:32,060 INFO L225 Difference]: With dead ends: 164118 [2022-12-14 10:11:32,060 INFO L226 Difference]: Without dead ends: 164118 [2022-12-14 10:11:32,061 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 [2022-12-14 10:11:32,061 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 13 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:32,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 56 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:11:32,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164118 states. [2022-12-14 10:11:36,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164118 to 164118. [2022-12-14 10:11:37,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164118 states, 163461 states have (on average 4.73806596068787) internal successors, (774489), 164117 states have internal predecessors, (774489), 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) [2022-12-14 10:11:38,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164118 states to 164118 states and 774489 transitions. [2022-12-14 10:11:38,130 INFO L78 Accepts]: Start accepts. Automaton has 164118 states and 774489 transitions. Word has length 4 [2022-12-14 10:11:38,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:38,130 INFO L495 AbstractCegarLoop]: Abstraction has 164118 states and 774489 transitions. [2022-12-14 10:11:38,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 10:11:38,130 INFO L276 IsEmpty]: Start isEmpty. Operand 164118 states and 774489 transitions. [2022-12-14 10:11:38,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 10:11:38,131 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:38,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 10:11:38,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 10:11:38,131 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 10:11:38,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:38,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1185745637, now seen corresponding path program 1 times [2022-12-14 10:11:38,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:38,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710185857] [2022-12-14 10:11:38,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:38,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:38,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:38,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710185857] [2022-12-14 10:11:38,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710185857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:38,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:38,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:11:38,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295468934] [2022-12-14 10:11:38,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:38,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:11:38,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:38,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:11:38,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:11:38,147 INFO L87 Difference]: Start difference. First operand 164118 states and 774489 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) [2022-12-14 10:11:40,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:40,151 INFO L93 Difference]: Finished difference Result 213573 states and 910895 transitions. [2022-12-14 10:11:40,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:11:40,152 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 [2022-12-14 10:11:40,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:41,509 INFO L225 Difference]: With dead ends: 213573 [2022-12-14 10:11:41,509 INFO L226 Difference]: Without dead ends: 213573 [2022-12-14 10:11:41,510 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 [2022-12-14 10:11:41,510 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 49 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:41,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 48 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:11:42,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213573 states. [2022-12-14 10:11:46,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213573 to 155244. [2022-12-14 10:11:46,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155244 states, 154647 states have (on average 4.614147057492224) internal successors, (713564), 155243 states have internal predecessors, (713564), 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) [2022-12-14 10:11:47,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155244 states to 155244 states and 713564 transitions. [2022-12-14 10:11:47,552 INFO L78 Accepts]: Start accepts. Automaton has 155244 states and 713564 transitions. Word has length 5 [2022-12-14 10:11:47,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:47,552 INFO L495 AbstractCegarLoop]: Abstraction has 155244 states and 713564 transitions. [2022-12-14 10:11:47,552 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) [2022-12-14 10:11:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand 155244 states and 713564 transitions. [2022-12-14 10:11:47,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 10:11:47,552 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:47,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:11:47,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 10:11:47,552 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 10:11:47,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:47,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1335347142, now seen corresponding path program 1 times [2022-12-14 10:11:47,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:47,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62717648] [2022-12-14 10:11:47,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:47,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:47,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:47,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:47,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62717648] [2022-12-14 10:11:47,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62717648] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:47,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:11:47,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:11:47,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945831120] [2022-12-14 10:11:47,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:47,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:11:47,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:47,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:11:47,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:11:47,568 INFO L87 Difference]: Start difference. First operand 155244 states and 713564 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) [2022-12-14 10:11:49,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:49,241 INFO L93 Difference]: Finished difference Result 185257 states and 780760 transitions. [2022-12-14 10:11:49,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:11:49,242 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 [2022-12-14 10:11:49,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:50,149 INFO L225 Difference]: With dead ends: 185257 [2022-12-14 10:11:50,149 INFO L226 Difference]: Without dead ends: 182978 [2022-12-14 10:11:50,149 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 [2022-12-14 10:11:50,149 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 47 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:50,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 52 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:11:50,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182978 states. [2022-12-14 10:11:54,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182978 to 146723. [2022-12-14 10:11:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146723 states, 146226 states have (on average 4.3232120142792665) internal successors, (632166), 146722 states have internal predecessors, (632166), 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) [2022-12-14 10:11:55,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146723 states to 146723 states and 632166 transitions. [2022-12-14 10:11:55,359 INFO L78 Accepts]: Start accepts. Automaton has 146723 states and 632166 transitions. Word has length 7 [2022-12-14 10:11:55,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:11:55,359 INFO L495 AbstractCegarLoop]: Abstraction has 146723 states and 632166 transitions. [2022-12-14 10:11:55,359 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) [2022-12-14 10:11:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 146723 states and 632166 transitions. [2022-12-14 10:11:55,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 10:11:55,360 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:11:55,360 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:11:55,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 10:11:55,360 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 10:11:55,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:11:55,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1769449026, now seen corresponding path program 1 times [2022-12-14 10:11:55,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:11:55,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389523422] [2022-12-14 10:11:55,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:55,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:11:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:11:55,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:11:55,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389523422] [2022-12-14 10:11:55,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389523422] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:11:55,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789483567] [2022-12-14 10:11:55,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:11:55,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:11:55,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:11:55,389 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:11:55,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:11:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:11:55,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 10:11:55,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:11:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 10:11:55,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:11:55,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789483567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:11:55,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:11:55,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-14 10:11:55,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217842389] [2022-12-14 10:11:55,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:11:55,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:11:55,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:11:55,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:11:55,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:11:55,456 INFO L87 Difference]: Start difference. First operand 146723 states and 632166 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-12-14 10:11:56,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:11:56,662 INFO L93 Difference]: Finished difference Result 116081 states and 491928 transitions. [2022-12-14 10:11:56,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:11:56,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-12-14 10:11:56,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:11:57,305 INFO L225 Difference]: With dead ends: 116081 [2022-12-14 10:11:57,306 INFO L226 Difference]: Without dead ends: 116075 [2022-12-14 10:11:57,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:11:57,306 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 48 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:11:57,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 79 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:11:57,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116075 states. [2022-12-14 10:11:59,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116075 to 114347. [2022-12-14 10:11:59,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114347 states, 113966 states have (on average 4.268474808276152) internal successors, (486461), 114346 states have internal predecessors, (486461), 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) [2022-12-14 10:12:00,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114347 states to 114347 states and 486461 transitions. [2022-12-14 10:12:00,629 INFO L78 Accepts]: Start accepts. Automaton has 114347 states and 486461 transitions. Word has length 14 [2022-12-14 10:12:00,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:00,629 INFO L495 AbstractCegarLoop]: Abstraction has 114347 states and 486461 transitions. [2022-12-14 10:12:00,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-12-14 10:12:00,630 INFO L276 IsEmpty]: Start isEmpty. Operand 114347 states and 486461 transitions. [2022-12-14 10:12:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 10:12:00,631 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:00,631 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:12:00,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:12:00,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:12:00,832 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 10:12:00,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:00,833 INFO L85 PathProgramCache]: Analyzing trace with hash -2141533893, now seen corresponding path program 1 times [2022-12-14 10:12:00,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:12:00,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513351138] [2022-12-14 10:12:00,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:00,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:12:00,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:12:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:12:00,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:12:00,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513351138] [2022-12-14 10:12:00,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513351138] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:12:00,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:12:00,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:12:00,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113213569] [2022-12-14 10:12:00,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:12:00,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:12:00,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:12:00,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:12:00,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:12:00,896 INFO L87 Difference]: Start difference. First operand 114347 states and 486461 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-12-14 10:12:02,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:02,483 INFO L93 Difference]: Finished difference Result 174919 states and 675960 transitions. [2022-12-14 10:12:02,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:12:02,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 15 [2022-12-14 10:12:02,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:03,242 INFO L225 Difference]: With dead ends: 174919 [2022-12-14 10:12:03,242 INFO L226 Difference]: Without dead ends: 174832 [2022-12-14 10:12:03,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:12:03,243 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 245 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:03,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 115 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 10:12:03,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174832 states. [2022-12-14 10:12:06,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174832 to 115199. [2022-12-14 10:12:06,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115199 states, 114845 states have (on average 4.196012016195742) internal successors, (481891), 115198 states have internal predecessors, (481891), 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) [2022-12-14 10:12:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115199 states to 115199 states and 481891 transitions. [2022-12-14 10:12:07,029 INFO L78 Accepts]: Start accepts. Automaton has 115199 states and 481891 transitions. Word has length 15 [2022-12-14 10:12:07,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:07,029 INFO L495 AbstractCegarLoop]: Abstraction has 115199 states and 481891 transitions. [2022-12-14 10:12:07,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-12-14 10:12:07,029 INFO L276 IsEmpty]: Start isEmpty. Operand 115199 states and 481891 transitions. [2022-12-14 10:12:07,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 10:12:07,030 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:07,030 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:12:07,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 10:12:07,030 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 10:12:07,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:07,031 INFO L85 PathProgramCache]: Analyzing trace with hash 258658133, now seen corresponding path program 1 times [2022-12-14 10:12:07,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:12:07,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988014462] [2022-12-14 10:12:07,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:07,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:12:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:12:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:12:07,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:12:07,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988014462] [2022-12-14 10:12:07,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988014462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:12:07,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:12:07,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:12:07,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775351722] [2022-12-14 10:12:07,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:12:07,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:12:07,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:12:07,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:12:07,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:12:07,082 INFO L87 Difference]: Start difference. First operand 115199 states and 481891 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-12-14 10:12:08,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:12:08,865 INFO L93 Difference]: Finished difference Result 169558 states and 657482 transitions. [2022-12-14 10:12:08,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:12:08,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 15 [2022-12-14 10:12:08,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:12:09,619 INFO L225 Difference]: With dead ends: 169558 [2022-12-14 10:12:09,619 INFO L226 Difference]: Without dead ends: 169471 [2022-12-14 10:12:09,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:12:09,620 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 220 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:12:09,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 138 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 10:12:10,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169471 states. [2022-12-14 10:12:12,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169471 to 109805. [2022-12-14 10:12:13,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109805 states, 109475 states have (on average 4.174167618177666) internal successors, (456967), 109804 states have internal predecessors, (456967), 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) [2022-12-14 10:12:13,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109805 states to 109805 states and 456967 transitions. [2022-12-14 10:12:13,740 INFO L78 Accepts]: Start accepts. Automaton has 109805 states and 456967 transitions. Word has length 15 [2022-12-14 10:12:13,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:12:13,740 INFO L495 AbstractCegarLoop]: Abstraction has 109805 states and 456967 transitions. [2022-12-14 10:12:13,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-12-14 10:12:13,741 INFO L276 IsEmpty]: Start isEmpty. Operand 109805 states and 456967 transitions. [2022-12-14 10:12:13,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 10:12:13,743 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:12:13,743 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:12:13,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 10:12:13,743 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 10:12:13,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:12:13,744 INFO L85 PathProgramCache]: Analyzing trace with hash 2145910652, now seen corresponding path program 1 times [2022-12-14 10:12:13,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:12:13,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355927748] [2022-12-14 10:12:13,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:12:13,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:12:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:12:13,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:12:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:12:13,769 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:12:13,769 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:12:13,769 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2022-12-14 10:12:13,769 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2022-12-14 10:12:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2022-12-14 10:12:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2022-12-14 10:12:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2022-12-14 10:12:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2022-12-14 10:12:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2022-12-14 10:12:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2022-12-14 10:12:13,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2022-12-14 10:12:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2022-12-14 10:12:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2022-12-14 10:12:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2022-12-14 10:12:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2022-12-14 10:12:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2022-12-14 10:12:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2022-12-14 10:12:13,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2022-12-14 10:12:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2022-12-14 10:12:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2022-12-14 10:12:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2022-12-14 10:12:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2022-12-14 10:12:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2022-12-14 10:12:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2022-12-14 10:12:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2022-12-14 10:12:13,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2022-12-14 10:12:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2022-12-14 10:12:13,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2022-12-14 10:12:13,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 10:12:13,773 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:12:13,777 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2022-12-14 10:12:13,777 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:12:13,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:12:13 BasicIcfg [2022-12-14 10:12:13,811 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:12:13,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:12:13,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:12:13,812 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:12:13,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:10:57" (3/4) ... [2022-12-14 10:12:13,814 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 10:12:13,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:12:13,814 INFO L158 Benchmark]: Toolchain (without parser) took 76998.47ms. Allocated memory was 132.1MB in the beginning and 14.7GB in the end (delta: 14.6GB). Free memory was 98.0MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 9.8GB. Max. memory is 16.1GB. [2022-12-14 10:12:13,814 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:12:13,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.72ms. Allocated memory is still 132.1MB. Free memory was 97.6MB in the beginning and 77.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 10:12:13,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.41ms. Allocated memory is still 132.1MB. Free memory was 77.1MB in the beginning and 75.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:12:13,815 INFO L158 Benchmark]: Boogie Preprocessor took 29.43ms. Allocated memory is still 132.1MB. Free memory was 75.0MB in the beginning and 73.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:12:13,815 INFO L158 Benchmark]: RCFGBuilder took 358.03ms. Allocated memory is still 132.1MB. Free memory was 73.4MB in the beginning and 57.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 10:12:13,816 INFO L158 Benchmark]: TraceAbstraction took 76248.56ms. Allocated memory was 132.1MB in the beginning and 14.7GB in the end (delta: 14.6GB). Free memory was 56.6MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 9.8GB. Max. memory is 16.1GB. [2022-12-14 10:12:13,816 INFO L158 Benchmark]: Witness Printer took 2.78ms. Allocated memory is still 14.7GB. Free memory is still 4.9GB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:12:13,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.72ms. Allocated memory is still 132.1MB. Free memory was 97.6MB in the beginning and 77.1MB in the end (delta: 20.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.41ms. Allocated memory is still 132.1MB. Free memory was 77.1MB in the beginning and 75.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.43ms. Allocated memory is still 132.1MB. Free memory was 75.0MB in the beginning and 73.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 358.03ms. Allocated memory is still 132.1MB. Free memory was 73.4MB in the beginning and 57.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 76248.56ms. Allocated memory was 132.1MB in the beginning and 14.7GB in the end (delta: 14.6GB). Free memory was 56.6MB in the beginning and 4.9GB in the end (delta: -4.8GB). Peak memory consumption was 9.8GB. Max. memory is 16.1GB. * Witness Printer took 2.78ms. Allocated memory is still 14.7GB. Free memory is still 4.9GB. 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: 1.9s, 85 PlacesBefore, 24 PlacesAfterwards, 88 TransitionsBefore, 24 TransitionsAfterwards, 1332 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 3 ChoiceCompositions, 100 TotalNumberOfCompositions, 2057 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1836, independent: 1794, independent conditional: 0, independent unconditional: 1794, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1094, independent: 1069, independent conditional: 0, independent unconditional: 1069, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1094, independent: 1043, independent conditional: 0, independent unconditional: 1043, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, independent: 26, independent conditional: 0, independent unconditional: 26, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1836, independent: 725, independent conditional: 0, independent unconditional: 725, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 1094, unknown conditional: 0, unknown unconditional: 1094] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 104 PlacesBefore, 46 PlacesAfterwards, 108 TransitionsBefore, 46 TransitionsAfterwards, 3708 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 115 TotalNumberOfCompositions, 13948 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7825, independent: 7535, independent conditional: 0, independent unconditional: 7535, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3163, independent: 3062, independent conditional: 0, independent unconditional: 3062, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3163, independent: 2892, independent conditional: 0, independent unconditional: 2892, dependent: 271, dependent conditional: 0, dependent unconditional: 271, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 271, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 236, independent: 74, independent conditional: 0, independent unconditional: 74, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7825, independent: 4473, independent conditional: 0, independent unconditional: 4473, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 3163, unknown conditional: 0, unknown unconditional: 3163] , Statistics on independence cache: Total cache size (in pairs): 555, Positive cache size: 518, Positive conditional cache size: 0, Positive unconditional cache size: 518, Negative cache size: 37, Negative conditional cache size: 0, Negative unconditional cache size: 37, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 123 PlacesBefore, 62 PlacesAfterwards, 128 TransitionsBefore, 64 TransitionsAfterwards, 6696 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 23 ConcurrentYvCompositions, 3 ChoiceCompositions, 129 TotalNumberOfCompositions, 31607 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13906, independent: 13444, independent conditional: 0, independent unconditional: 13444, dependent: 462, dependent conditional: 0, dependent unconditional: 462, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5677, independent: 5528, independent conditional: 0, independent unconditional: 5528, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5677, independent: 5112, independent conditional: 0, independent unconditional: 5112, dependent: 565, dependent conditional: 0, dependent unconditional: 565, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 565, independent: 416, independent conditional: 0, independent unconditional: 416, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 277, independent: 141, independent conditional: 0, independent unconditional: 141, dependent: 135, dependent conditional: 0, dependent unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13906, independent: 7916, independent conditional: 0, independent unconditional: 7916, dependent: 313, dependent conditional: 0, dependent unconditional: 313, unknown: 5677, unknown conditional: 0, unknown unconditional: 5677] , Statistics on independence cache: Total cache size (in pairs): 1144, Positive cache size: 1088, Positive conditional cache size: 0, Positive unconditional cache size: 1088, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 142 PlacesBefore, 75 PlacesAfterwards, 148 TransitionsBefore, 76 TransitionsAfterwards, 10440 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 92 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 23 ConcurrentYvCompositions, 5 ChoiceCompositions, 155 TotalNumberOfCompositions, 50795 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22846, independent: 22273, independent conditional: 0, independent unconditional: 22273, dependent: 573, dependent conditional: 0, dependent unconditional: 573, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8408, independent: 8234, independent conditional: 0, independent unconditional: 8234, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8408, independent: 7459, independent conditional: 0, independent unconditional: 7459, dependent: 949, dependent conditional: 0, dependent unconditional: 949, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 949, independent: 775, independent conditional: 0, independent unconditional: 775, dependent: 174, dependent conditional: 0, dependent unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 355, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 137, dependent conditional: 0, dependent unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22846, independent: 14039, independent conditional: 0, independent unconditional: 14039, dependent: 399, dependent conditional: 0, dependent unconditional: 399, unknown: 8408, unknown conditional: 0, unknown unconditional: 8408] , Statistics on independence cache: Total cache size (in pairs): 1645, Positive cache size: 1579, Positive conditional cache size: 0, Positive unconditional cache size: 1579, Negative cache size: 66, Negative conditional cache size: 0, Negative unconditional cache size: 66, 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: 722]: Data race detected Data race detected The following path leads to a data race: [L717] 0 int numberOfSeatsSold; [L718] 0 int stopSales; [L719] 0 int numOfTickets; [L736] 0 pthread_t salethreads[5]; [L738] 0 numOfTickets = 5 [L741] 0 numberOfSeatsSold = 0 [L744] 0 stopSales = 0 [L746] 0 int i = 0; VAL [\old(argc)=50, argc=50, argv={52:51}, argv={52:51}, i=0, numberOfSeatsSold=0, numOfTickets=5, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 5 [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=50, arg={0:0}, argc=50, argv={52:51}, argv={52:51}, i=0, numberOfSeatsSold=0, numOfTickets=5, pthread_create(&salethreads[i], 0, salethread, ((void *)0))=-1, salethreads={3:0}, stopSales=0] [L721] 1 !stopSales [L721] COND TRUE 1 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=5, stopSales=0] [L746] 0 i++ VAL [\old(argc)=50, arg={0:0}, arg={0:0}, argc=50, argv={52:51}, argv={52:51}, i=1, numberOfSeatsSold=0, numOfTickets=5, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 5 [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=5, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=50, arg={0:0}, arg={0:0}, argc=50, argv={52:51}, argv={52:51}, i=1, numberOfSeatsSold=0, numOfTickets=5, pthread_create(&salethreads[i], 0, salethread, ((void *)0))=0, salethreads={3:0}, stopSales=0] [L721] 2 !stopSales [L721] COND TRUE 2 !stopSales VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=5, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=5, stopSales=0] [L723] COND FALSE 2 !(_numberOfSeatsSold >= (5 - (((5 / 10) == 0) ? 1 : (5 / 10)))) [L729] 2 numberOfSeatsSold = _numberOfSeatsSold + 1 [L733] 2 return ((void *)0); [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\result={0:0}, _numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=1, numberOfSeatsSold = _numberOfSeatsSold + 1=49, numOfTickets=5, stopSales=0, stopSales = 1=53] Now there is a data race on ~numberOfSeatsSold~0 between C: numberOfSeatsSold = _numberOfSeatsSold + 1 [729] and C: int _numberOfSeatsSold = numberOfSeatsSold; [722] - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: 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 3 procedures, 100 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 1 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 117 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 115 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 167 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 76 mSDtfsCounter, 167 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2005occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 328 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 134 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 356 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 356 mSDsluCounter, 273 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 114 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 514 IncrementalHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 159 mSDtfsCounter, 514 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29692occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 10060 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 151 locations, 26 error locations. Started 1 CEGAR loops. OverallTime: 64.3s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 19.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 622 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 622 mSDsluCounter, 516 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 268 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 941 IncrementalHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 248 mSDtfsCounter, 941 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352330occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 34.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 215611 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 100 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 5/6 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! [2022-12-14 10:12:13,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a020461-3ce2-4e5c-9d63-f53e60cb19d5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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