./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/airline-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/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_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/airline-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/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_8f3725af-6543-47e8-a9a7-6019ea7cddce/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 8e894693d2d051395e42cf40effac907db7b5be7a8f5722374b3e5b36cc0228a --- 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 09:52:31,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:52:31,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:52:31,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:52:31,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:52:31,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:52:31,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:52:31,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:52:31,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:52:31,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:52:31,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:52:31,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:52:31,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:52:31,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:52:31,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:52:31,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:52:31,081 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:52:31,082 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:52:31,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:52:31,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:52:31,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:52:31,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:52:31,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:52:31,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:52:31,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:52:31,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:52:31,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:52:31,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:52:31,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:52:31,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:52:31,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:52:31,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:52:31,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:52:31,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:52:31,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:52:31,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:52:31,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:52:31,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:52:31,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:52:31,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:52:31,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:52:31,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 09:52:31,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:52:31,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:52:31,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:52:31,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:52:31,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:52:31,129 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:52:31,130 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:52:31,130 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:52:31,130 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:52:31,130 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:52:31,130 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:52:31,131 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:52:31,131 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:52:31,131 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:52:31,131 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:52:31,131 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:52:31,132 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:52:31,132 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:52:31,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:52:31,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:52:31,133 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:52:31,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:52:31,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:52:31,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:52:31,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:52:31,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:52:31,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:52:31,134 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 09:52:31,134 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:52:31,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:52:31,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:52:31,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:52:31,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:52:31,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:52:31,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:52:31,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:52:31,136 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:52:31,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:52:31,136 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:52:31,137 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:52:31,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:52:31,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:52:31,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:52:31,137 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_8f3725af-6543-47e8-a9a7-6019ea7cddce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e894693d2d051395e42cf40effac907db7b5be7a8f5722374b3e5b36cc0228a [2022-12-14 09:52:31,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:52:31,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:52:31,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:52:31,359 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:52:31,360 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:52:31,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-deagle/airline-10.i [2022-12-14 09:52:33,995 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:52:34,161 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:52:34,162 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/sv-benchmarks/c/pthread-deagle/airline-10.i [2022-12-14 09:52:34,172 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/data/c1baecbff/39f9532da3594863afa56f6f7c2c9196/FLAG96f1a1e37 [2022-12-14 09:52:34,186 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/data/c1baecbff/39f9532da3594863afa56f6f7c2c9196 [2022-12-14 09:52:34,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:52:34,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:52:34,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:52:34,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:52:34,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:52:34,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a6c17c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34, skipping insertion in model container [2022-12-14 09:52:34,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:52:34,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:52:34,419 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:52:34,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:52:34,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:52:34,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:52:34,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:52:34,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:52:34,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:52:34,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:52:34,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:52:34,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:52:34,431 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_8f3725af-6543-47e8-a9a7-6019ea7cddce/sv-benchmarks/c/pthread-deagle/airline-10.i[32101,32114] [2022-12-14 09:52:34,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:52:34,438 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:52:34,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:52:34,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:52:34,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:52:34,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:52:34,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:52:34,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:52:34,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:52:34,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:52:34,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:52:34,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:52:34,471 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_8f3725af-6543-47e8-a9a7-6019ea7cddce/sv-benchmarks/c/pthread-deagle/airline-10.i[32101,32114] [2022-12-14 09:52:34,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:52:34,490 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:52:34,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34 WrapperNode [2022-12-14 09:52:34,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:52:34,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:52:34,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:52:34,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:52:34,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,519 INFO L138 Inliner]: procedures = 162, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-12-14 09:52:34,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:52:34,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:52:34,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:52:34,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:52:34,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,536 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:52:34,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:52:34,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:52:34,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:52:34,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (1/1) ... [2022-12-14 09:52:34,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:52:34,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:52:34,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:52:34,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 09:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2022-12-14 09:52:34,596 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2022-12-14 09:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 09:52:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:52:34,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:52:34,598 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 09:52:34,699 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:52:34,701 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:52:34,873 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:52:34,915 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:52:34,915 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 09:52:34,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:52:34 BoogieIcfgContainer [2022-12-14 09:52:34,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:52:34,920 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:52:34,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:52:34,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:52:34,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:52:34" (1/3) ... [2022-12-14 09:52:34,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ac07ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:52:34, skipping insertion in model container [2022-12-14 09:52:34,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:34" (2/3) ... [2022-12-14 09:52:34,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ac07ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:52:34, skipping insertion in model container [2022-12-14 09:52:34,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:52:34" (3/3) ... [2022-12-14 09:52:34,925 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-10.i [2022-12-14 09:52:34,934 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 09:52:34,944 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:52:34,944 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-12-14 09:52:34,945 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 09:52:34,987 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 09:52:35,021 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:52:35,036 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 88 transitions, 184 flow [2022-12-14 09:52:35,039 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 88 transitions, 184 flow [2022-12-14 09:52:35,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 88 transitions, 184 flow [2022-12-14 09:52:35,089 INFO L130 PetriNetUnfolder]: 9/119 cut-off events. [2022-12-14 09:52:35,089 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 09:52:35,094 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 09:52:35,097 INFO L119 LiptonReduction]: Number of co-enabled transitions 1332 [2022-12-14 09:52:37,056 INFO L134 LiptonReduction]: Checked pairs total: 2057 [2022-12-14 09:52:37,056 INFO L136 LiptonReduction]: Total number of compositions: 100 [2022-12-14 09:52:37,062 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 24 transitions, 56 flow [2022-12-14 09:52:37,077 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 09:52:37,093 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:52:37,097 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;@154a8ff0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:52:37,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-12-14 09:52:37,100 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 09:52:37,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 09:52:37,104 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:37,105 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 09:52:37,105 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 09:52:37,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:37,110 INFO L85 PathProgramCache]: Analyzing trace with hash 401, now seen corresponding path program 1 times [2022-12-14 09:52:37,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:37,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193628921] [2022-12-14 09:52:37,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:37,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:37,208 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 09:52:37,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:37,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193628921] [2022-12-14 09:52:37,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193628921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:37,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:52:37,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 09:52:37,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66412570] [2022-12-14 09:52:37,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:37,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:52:37,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:37,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:52:37,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:52:37,231 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 09:52:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:37,259 INFO L93 Difference]: Finished difference Result 31 states and 53 transitions. [2022-12-14 09:52:37,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:52:37,262 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 09:52:37,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:37,267 INFO L225 Difference]: With dead ends: 31 [2022-12-14 09:52:37,267 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 09:52:37,267 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 09:52:37,270 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 09:52:37,271 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 09:52:37,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 09:52:37,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 09:52:37,291 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 09:52:37,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 24 transitions. [2022-12-14 09:52:37,292 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 24 transitions. Word has length 1 [2022-12-14 09:52:37,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:37,292 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 24 transitions. [2022-12-14 09:52:37,292 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 09:52:37,293 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2022-12-14 09:52:37,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:52:37,293 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:37,293 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 09:52:37,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:52:37,293 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 09:52:37,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:37,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1013855672, now seen corresponding path program 1 times [2022-12-14 09:52:37,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:37,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803719455] [2022-12-14 09:52:37,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:37,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:52:37,329 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:52:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:52:37,354 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:52:37,354 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:52:37,355 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2022-12-14 09:52:37,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2022-12-14 09:52:37,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2022-12-14 09:52:37,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2022-12-14 09:52:37,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2022-12-14 09:52:37,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 14 remaining) [2022-12-14 09:52:37,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2022-12-14 09:52:37,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2022-12-14 09:52:37,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2022-12-14 09:52:37,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2022-12-14 09:52:37,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2022-12-14 09:52:37,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2022-12-14 09:52:37,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2022-12-14 09:52:37,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2022-12-14 09:52:37,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:52:37,361 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 09:52:37,362 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 09:52:37,363 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-14 09:52:37,380 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 09:52:37,384 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:52:37,384 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 108 transitions, 234 flow [2022-12-14 09:52:37,385 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 108 transitions, 234 flow [2022-12-14 09:52:37,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 108 transitions, 234 flow [2022-12-14 09:52:37,428 INFO L130 PetriNetUnfolder]: 18/209 cut-off events. [2022-12-14 09:52:37,428 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-14 09:52:37,430 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 09:52:37,436 INFO L119 LiptonReduction]: Number of co-enabled transitions 3708 [2022-12-14 09:52:39,449 INFO L134 LiptonReduction]: Checked pairs total: 13948 [2022-12-14 09:52:39,449 INFO L136 LiptonReduction]: Total number of compositions: 115 [2022-12-14 09:52:39,450 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 46 transitions, 110 flow [2022-12-14 09:52:39,503 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 09:52:39,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:52:39,506 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;@154a8ff0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:52:39,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-12-14 09:52:39,513 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 09:52:39,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 09:52:39,513 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:39,513 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 09:52:39,514 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 09:52:39,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:39,514 INFO L85 PathProgramCache]: Analyzing trace with hash 644, now seen corresponding path program 1 times [2022-12-14 09:52:39,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:39,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394177482] [2022-12-14 09:52:39,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:39,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:39,529 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 09:52:39,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:39,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394177482] [2022-12-14 09:52:39,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394177482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:39,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:52:39,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 09:52:39,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933915481] [2022-12-14 09:52:39,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:39,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:52:39,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:39,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:52:39,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:52:39,538 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 09:52:39,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:39,589 INFO L93 Difference]: Finished difference Result 1309 states and 3621 transitions. [2022-12-14 09:52:39,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:52:39,590 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 09:52:39,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:39,600 INFO L225 Difference]: With dead ends: 1309 [2022-12-14 09:52:39,600 INFO L226 Difference]: Without dead ends: 1260 [2022-12-14 09:52:39,600 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 09:52:39,601 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 09:52:39,601 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 09:52:39,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2022-12-14 09:52:39,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1260. [2022-12-14 09:52:39,657 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 09:52:39,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 3472 transitions. [2022-12-14 09:52:39,661 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 3472 transitions. Word has length 1 [2022-12-14 09:52:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:39,661 INFO L495 AbstractCegarLoop]: Abstraction has 1260 states and 3472 transitions. [2022-12-14 09:52:39,661 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 09:52:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 3472 transitions. [2022-12-14 09:52:39,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:52:39,661 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:39,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:52:39,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:52:39,661 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 09:52:39,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:39,662 INFO L85 PathProgramCache]: Analyzing trace with hash 19755252, now seen corresponding path program 1 times [2022-12-14 09:52:39,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:39,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901908355] [2022-12-14 09:52:39,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:39,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:39,710 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 09:52:39,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:39,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901908355] [2022-12-14 09:52:39,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901908355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:39,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:52:39,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:52:39,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879908987] [2022-12-14 09:52:39,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:39,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:52:39,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:39,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:52:39,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:52:39,712 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 09:52:39,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:39,756 INFO L93 Difference]: Finished difference Result 1260 states and 3471 transitions. [2022-12-14 09:52:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:52:39,756 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 09:52:39,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:39,761 INFO L225 Difference]: With dead ends: 1260 [2022-12-14 09:52:39,761 INFO L226 Difference]: Without dead ends: 1260 [2022-12-14 09:52:39,761 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 09:52:39,762 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 09:52:39,762 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 09:52:39,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2022-12-14 09:52:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1260. [2022-12-14 09:52:39,785 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 09:52:39,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 3471 transitions. [2022-12-14 09:52:39,789 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 3471 transitions. Word has length 4 [2022-12-14 09:52:39,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:39,789 INFO L495 AbstractCegarLoop]: Abstraction has 1260 states and 3471 transitions. [2022-12-14 09:52:39,789 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 09:52:39,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 3471 transitions. [2022-12-14 09:52:39,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:52:39,790 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:39,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:52:39,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:52:39,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-12-14 09:52:39,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:39,790 INFO L85 PathProgramCache]: Analyzing trace with hash 613562878, now seen corresponding path program 1 times [2022-12-14 09:52:39,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:39,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841578633] [2022-12-14 09:52:39,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:39,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:39,817 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 09:52:39,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:39,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841578633] [2022-12-14 09:52:39,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841578633] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:39,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:52:39,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:52:39,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621846228] [2022-12-14 09:52:39,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:39,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:52:39,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:39,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:52:39,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:52:39,819 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 09:52:39,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:39,879 INFO L93 Difference]: Finished difference Result 1379 states and 3493 transitions. [2022-12-14 09:52:39,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:52:39,880 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 09:52:39,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:39,892 INFO L225 Difference]: With dead ends: 1379 [2022-12-14 09:52:39,892 INFO L226 Difference]: Without dead ends: 1379 [2022-12-14 09:52:39,892 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 09:52:39,893 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 09:52:39,894 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 09:52:39,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2022-12-14 09:52:39,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1107. [2022-12-14 09:52:39,926 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 09:52:39,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 3000 transitions. [2022-12-14 09:52:39,929 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 3000 transitions. Word has length 5 [2022-12-14 09:52:39,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:39,929 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 3000 transitions. [2022-12-14 09:52:39,929 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 09:52:39,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 3000 transitions. [2022-12-14 09:52:39,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 09:52:39,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:39,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:52:39,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:52:39,930 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2022-12-14 09:52:39,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:39,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1223460521, now seen corresponding path program 1 times [2022-12-14 09:52:39,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:39,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874797263] [2022-12-14 09:52:39,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:39,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:39,956 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 09:52:39,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:39,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874797263] [2022-12-14 09:52:39,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874797263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:39,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:52:39,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:52:39,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075865539] [2022-12-14 09:52:39,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:39,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:52:39,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:39,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:52:39,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:52:39,957 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 09:52:40,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:40,012 INFO L93 Difference]: Finished difference Result 991 states and 2491 transitions. [2022-12-14 09:52:40,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:52:40,013 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 09:52:40,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:40,015 INFO L225 Difference]: With dead ends: 991 [2022-12-14 09:52:40,015 INFO L226 Difference]: Without dead ends: 879 [2022-12-14 09:52:40,016 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 09:52:40,016 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 09:52:40,016 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 09:52:40,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2022-12-14 09:52:40,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 823. [2022-12-14 09:52:40,029 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 09:52:40,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 2082 transitions. [2022-12-14 09:52:40,031 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 2082 transitions. Word has length 7 [2022-12-14 09:52:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:40,032 INFO L495 AbstractCegarLoop]: Abstraction has 823 states and 2082 transitions. [2022-12-14 09:52:40,032 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 09:52:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 2082 transitions. [2022-12-14 09:52:40,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:52:40,032 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:40,033 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 09:52:40,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:52:40,033 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 09:52:40,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:40,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1424026580, now seen corresponding path program 1 times [2022-12-14 09:52:40,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:40,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182925650] [2022-12-14 09:52:40,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:40,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:52:40,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:52:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:52:40,066 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:52:40,066 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:52:40,066 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2022-12-14 09:52:40,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2022-12-14 09:52:40,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2022-12-14 09:52:40,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2022-12-14 09:52:40,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2022-12-14 09:52:40,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2022-12-14 09:52:40,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2022-12-14 09:52:40,067 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2022-12-14 09:52:40,068 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2022-12-14 09:52:40,068 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2022-12-14 09:52:40,068 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2022-12-14 09:52:40,068 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2022-12-14 09:52:40,068 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2022-12-14 09:52:40,068 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2022-12-14 09:52:40,068 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2022-12-14 09:52:40,069 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2022-12-14 09:52:40,069 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2022-12-14 09:52:40,069 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2022-12-14 09:52:40,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:52:40,069 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 09:52:40,070 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 09:52:40,070 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-14 09:52:40,089 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-14 09:52:40,091 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:52:40,091 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 128 transitions, 286 flow [2022-12-14 09:52:40,092 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 128 transitions, 286 flow [2022-12-14 09:52:40,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 128 transitions, 286 flow [2022-12-14 09:52:40,125 INFO L130 PetriNetUnfolder]: 34/360 cut-off events. [2022-12-14 09:52:40,125 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-14 09:52:40,127 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 09:52:40,131 INFO L119 LiptonReduction]: Number of co-enabled transitions 6696 [2022-12-14 09:52:42,058 INFO L134 LiptonReduction]: Checked pairs total: 31607 [2022-12-14 09:52:42,058 INFO L136 LiptonReduction]: Total number of compositions: 129 [2022-12-14 09:52:42,059 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 64 transitions, 158 flow [2022-12-14 09:52:42,591 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 09:52:42,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:52:42,592 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;@154a8ff0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:52:42,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-14 09:52:42,625 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 09:52:42,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 09:52:42,626 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:42,626 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 09:52:42,626 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 09:52:42,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:42,626 INFO L85 PathProgramCache]: Analyzing trace with hash 913, now seen corresponding path program 1 times [2022-12-14 09:52:42,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:42,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194949323] [2022-12-14 09:52:42,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:42,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:42,631 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 09:52:42,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:42,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194949323] [2022-12-14 09:52:42,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194949323] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:42,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:52:42,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 09:52:42,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123958546] [2022-12-14 09:52:42,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:42,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:52:42,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:42,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:52:42,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:52:42,705 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 09:52:42,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:42,924 INFO L93 Difference]: Finished difference Result 16783 states and 65102 transitions. [2022-12-14 09:52:42,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:52:42,925 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 09:52:42,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:43,083 INFO L225 Difference]: With dead ends: 16783 [2022-12-14 09:52:43,083 INFO L226 Difference]: Without dead ends: 16424 [2022-12-14 09:52:43,083 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 09:52:43,084 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 09:52:43,085 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 09:52:43,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16424 states. [2022-12-14 09:52:43,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16424 to 16424. [2022-12-14 09:52:43,561 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 09:52:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16424 states to 16424 states and 63543 transitions. [2022-12-14 09:52:43,638 INFO L78 Accepts]: Start accepts. Automaton has 16424 states and 63543 transitions. Word has length 1 [2022-12-14 09:52:43,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:43,639 INFO L495 AbstractCegarLoop]: Abstraction has 16424 states and 63543 transitions. [2022-12-14 09:52:43,639 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 09:52:43,639 INFO L276 IsEmpty]: Start isEmpty. Operand 16424 states and 63543 transitions. [2022-12-14 09:52:43,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:52:43,639 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:43,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:52:43,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:52:43,640 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 09:52:43,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:43,640 INFO L85 PathProgramCache]: Analyzing trace with hash 28304241, now seen corresponding path program 1 times [2022-12-14 09:52:43,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:43,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328986158] [2022-12-14 09:52:43,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:43,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:43,667 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 09:52:43,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:43,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328986158] [2022-12-14 09:52:43,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328986158] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:43,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:52:43,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:52:43,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118394205] [2022-12-14 09:52:43,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:43,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:52:43,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:43,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:52:43,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:52:43,669 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 09:52:43,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:43,836 INFO L93 Difference]: Finished difference Result 16424 states and 63542 transitions. [2022-12-14 09:52:43,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:52:43,836 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 09:52:43,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:43,938 INFO L225 Difference]: With dead ends: 16424 [2022-12-14 09:52:43,938 INFO L226 Difference]: Without dead ends: 16424 [2022-12-14 09:52:43,938 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 09:52:43,939 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, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:52:43,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 42 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:52:43,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16424 states. [2022-12-14 09:52:44,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16424 to 16424. [2022-12-14 09:52:44,281 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 09:52:44,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16424 states to 16424 states and 63542 transitions. [2022-12-14 09:52:44,365 INFO L78 Accepts]: Start accepts. Automaton has 16424 states and 63542 transitions. Word has length 4 [2022-12-14 09:52:44,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:44,365 INFO L495 AbstractCegarLoop]: Abstraction has 16424 states and 63542 transitions. [2022-12-14 09:52:44,365 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 09:52:44,365 INFO L276 IsEmpty]: Start isEmpty. Operand 16424 states and 63542 transitions. [2022-12-14 09:52:44,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:52:44,366 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:44,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:52:44,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:52:44,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 09:52:44,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:44,366 INFO L85 PathProgramCache]: Analyzing trace with hash 878813789, now seen corresponding path program 1 times [2022-12-14 09:52:44,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:44,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40136542] [2022-12-14 09:52:44,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:44,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:44,389 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 09:52:44,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:44,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40136542] [2022-12-14 09:52:44,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40136542] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:44,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:52:44,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:52:44,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028509464] [2022-12-14 09:52:44,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:44,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:52:44,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:44,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:52:44,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:52:44,391 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 09:52:44,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:44,605 INFO L93 Difference]: Finished difference Result 19618 states and 68953 transitions. [2022-12-14 09:52:44,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:52:44,606 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 09:52:44,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:44,722 INFO L225 Difference]: With dead ends: 19618 [2022-12-14 09:52:44,722 INFO L226 Difference]: Without dead ends: 19618 [2022-12-14 09:52:44,723 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 09:52:44,723 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, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:52:44,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 37 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:52:44,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19618 states. [2022-12-14 09:52:45,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19618 to 14734. [2022-12-14 09:52:45,138 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 09:52:45,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14734 states to 14734 states and 55823 transitions. [2022-12-14 09:52:45,242 INFO L78 Accepts]: Start accepts. Automaton has 14734 states and 55823 transitions. Word has length 5 [2022-12-14 09:52:45,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:45,242 INFO L495 AbstractCegarLoop]: Abstraction has 14734 states and 55823 transitions. [2022-12-14 09:52:45,242 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 09:52:45,242 INFO L276 IsEmpty]: Start isEmpty. Operand 14734 states and 55823 transitions. [2022-12-14 09:52:45,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 09:52:45,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:45,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:52:45,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:52:45,243 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 09:52:45,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:45,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1568428425, now seen corresponding path program 1 times [2022-12-14 09:52:45,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:45,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918927248] [2022-12-14 09:52:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:45,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:45,257 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 09:52:45,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:45,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918927248] [2022-12-14 09:52:45,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918927248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:45,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:52:45,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:52:45,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244533313] [2022-12-14 09:52:45,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:45,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:52:45,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:45,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:52:45,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:52:45,258 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 09:52:45,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:45,380 INFO L93 Difference]: Finished difference Result 15472 states and 53563 transitions. [2022-12-14 09:52:45,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:52:45,380 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 09:52:45,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:45,422 INFO L225 Difference]: With dead ends: 15472 [2022-12-14 09:52:45,422 INFO L226 Difference]: Without dead ends: 14729 [2022-12-14 09:52:45,422 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 09:52:45,423 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 40 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:52:45,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 38 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:52:45,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14729 states. [2022-12-14 09:52:45,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14729 to 12153. [2022-12-14 09:52:45,695 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 09:52:45,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12153 states to 12153 states and 42952 transitions. [2022-12-14 09:52:45,742 INFO L78 Accepts]: Start accepts. Automaton has 12153 states and 42952 transitions. Word has length 7 [2022-12-14 09:52:45,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:45,742 INFO L495 AbstractCegarLoop]: Abstraction has 12153 states and 42952 transitions. [2022-12-14 09:52:45,742 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 09:52:45,742 INFO L276 IsEmpty]: Start isEmpty. Operand 12153 states and 42952 transitions. [2022-12-14 09:52:45,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:52:45,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:45,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:52:45,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:52:45,746 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 09:52:45,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:45,746 INFO L85 PathProgramCache]: Analyzing trace with hash -293065867, now seen corresponding path program 1 times [2022-12-14 09:52:45,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:45,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66888736] [2022-12-14 09:52:45,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:45,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:45,792 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 09:52:45,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:45,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66888736] [2022-12-14 09:52:45,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66888736] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:52:45,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770792606] [2022-12-14 09:52:45,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:45,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:52:45,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:52:45,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:52:45,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:52:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:45,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 09:52:45,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:52:45,863 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 09:52:45,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:52:45,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770792606] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:45,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:52:45,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-12-14 09:52:45,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621219805] [2022-12-14 09:52:45,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:45,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:52:45,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:45,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:52:45,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:52:45,865 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 09:52:45,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:45,955 INFO L93 Difference]: Finished difference Result 9513 states and 33230 transitions. [2022-12-14 09:52:45,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:52:45,956 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 09:52:45,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:45,982 INFO L225 Difference]: With dead ends: 9513 [2022-12-14 09:52:45,982 INFO L226 Difference]: Without dead ends: 9507 [2022-12-14 09:52:45,982 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 09:52:45,983 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 09:52:45,983 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 09:52:45,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9507 states. [2022-12-14 09:52:46,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9507 to 9393. [2022-12-14 09:52:46,181 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 09:52:46,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9393 states to 9393 states and 32982 transitions. [2022-12-14 09:52:46,217 INFO L78 Accepts]: Start accepts. Automaton has 9393 states and 32982 transitions. Word has length 14 [2022-12-14 09:52:46,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:46,217 INFO L495 AbstractCegarLoop]: Abstraction has 9393 states and 32982 transitions. [2022-12-14 09:52:46,217 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 09:52:46,217 INFO L276 IsEmpty]: Start isEmpty. Operand 9393 states and 32982 transitions. [2022-12-14 09:52:46,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 09:52:46,219 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:46,219 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:52:46,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-12-14 09:52:46,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 09:52:46,421 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-12-14 09:52:46,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:46,422 INFO L85 PathProgramCache]: Analyzing trace with hash 2076939116, now seen corresponding path program 1 times [2022-12-14 09:52:46,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:46,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852949705] [2022-12-14 09:52:46,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:46,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:46,529 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 09:52:46,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:46,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852949705] [2022-12-14 09:52:46,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852949705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:46,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:52:46,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:52:46,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168908584] [2022-12-14 09:52:46,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:46,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:52:46,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:46,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:52:46,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:52:46,531 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 09:52:46,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:52:46,758 INFO L93 Difference]: Finished difference Result 11136 states and 34673 transitions. [2022-12-14 09:52:46,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:52:46,758 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 09:52:46,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:52:46,793 INFO L225 Difference]: With dead ends: 11136 [2022-12-14 09:52:46,793 INFO L226 Difference]: Without dead ends: 11118 [2022-12-14 09:52:46,794 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 09:52:46,794 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 09:52:46,795 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 09:52:46,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11118 states. [2022-12-14 09:52:47,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11118 to 8632. [2022-12-14 09:52:47,041 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 09:52:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8632 states to 8632 states and 28785 transitions. [2022-12-14 09:52:47,073 INFO L78 Accepts]: Start accepts. Automaton has 8632 states and 28785 transitions. Word has length 15 [2022-12-14 09:52:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:52:47,073 INFO L495 AbstractCegarLoop]: Abstraction has 8632 states and 28785 transitions. [2022-12-14 09:52:47,074 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 09:52:47,074 INFO L276 IsEmpty]: Start isEmpty. Operand 8632 states and 28785 transitions. [2022-12-14 09:52:47,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 09:52:47,075 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:47,075 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-12-14 09:52:47,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:52:47,075 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 09:52:47,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:47,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1003416675, now seen corresponding path program 1 times [2022-12-14 09:52:47,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:47,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075871451] [2022-12-14 09:52:47,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:47,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:52:47,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:52:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:52:47,095 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:52:47,095 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:52:47,095 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2022-12-14 09:52:47,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-12-14 09:52:47,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-12-14 09:52:47,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-12-14 09:52:47,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-12-14 09:52:47,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-12-14 09:52:47,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-12-14 09:52:47,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-12-14 09:52:47,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-12-14 09:52:47,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-12-14 09:52:47,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-12-14 09:52:47,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-12-14 09:52:47,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-12-14 09:52:47,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-12-14 09:52:47,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-12-14 09:52:47,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-12-14 09:52:47,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-12-14 09:52:47,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-12-14 09:52:47,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-12-14 09:52:47,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-12-14 09:52:47,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-12-14 09:52:47,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-12-14 09:52:47,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:52:47,098 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:52:47,098 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 09:52:47,098 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-12-14 09:52:47,115 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-14 09:52:47,116 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:52:47,116 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 148 transitions, 340 flow [2022-12-14 09:52:47,117 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 148 transitions, 340 flow [2022-12-14 09:52:47,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 148 transitions, 340 flow [2022-12-14 09:52:47,193 INFO L130 PetriNetUnfolder]: 66/635 cut-off events. [2022-12-14 09:52:47,193 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-12-14 09:52:47,196 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 09:52:47,209 INFO L119 LiptonReduction]: Number of co-enabled transitions 10440 [2022-12-14 09:52:49,508 INFO L134 LiptonReduction]: Checked pairs total: 50795 [2022-12-14 09:52:49,509 INFO L136 LiptonReduction]: Total number of compositions: 155 [2022-12-14 09:52:49,510 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 76 transitions, 196 flow [2022-12-14 09:52:57,429 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 09:52:57,430 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:52:57,430 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;@154a8ff0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:52:57,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-12-14 09:52:57,926 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 09:52:57,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 09:52:57,927 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:52:57,927 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 09:52:57,927 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 09:52:57,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:52:57,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1235, now seen corresponding path program 1 times [2022-12-14 09:52:57,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:52:57,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992047756] [2022-12-14 09:52:57,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:52:57,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:52:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:52:57,935 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 09:52:57,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:52:57,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992047756] [2022-12-14 09:52:57,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992047756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:52:57,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:52:57,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 09:52:57,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277902643] [2022-12-14 09:52:57,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:52:57,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:52:57,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:52:57,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:52:57,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:52:58,493 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 09:53:00,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:53:00,378 INFO L93 Difference]: Finished difference Result 165617 states and 782239 transitions. [2022-12-14 09:53:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:53:00,379 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 09:53:00,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:53:01,480 INFO L225 Difference]: With dead ends: 165617 [2022-12-14 09:53:01,480 INFO L226 Difference]: Without dead ends: 164118 [2022-12-14 09:53:01,481 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 09:53:01,481 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 09:53:01,481 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 09:53:01,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164118 states. [2022-12-14 09:53:05,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164118 to 164118. [2022-12-14 09:53:06,338 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 09:53:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164118 states to 164118 states and 774490 transitions. [2022-12-14 09:53:07,283 INFO L78 Accepts]: Start accepts. Automaton has 164118 states and 774490 transitions. Word has length 1 [2022-12-14 09:53:07,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:53:07,283 INFO L495 AbstractCegarLoop]: Abstraction has 164118 states and 774490 transitions. [2022-12-14 09:53:07,283 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 09:53:07,283 INFO L276 IsEmpty]: Start isEmpty. Operand 164118 states and 774490 transitions. [2022-12-14 09:53:07,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:53:07,283 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:07,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:53:07,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:53:07,284 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 09:53:07,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:07,284 INFO L85 PathProgramCache]: Analyzing trace with hash 38201764, now seen corresponding path program 1 times [2022-12-14 09:53:07,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:07,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645390216] [2022-12-14 09:53:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:07,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:53:07,299 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 09:53:07,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:53:07,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645390216] [2022-12-14 09:53:07,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645390216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:53:07,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:53:07,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:53:07,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548122137] [2022-12-14 09:53:07,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:53:07,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:53:07,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:53:07,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:53:07,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:53:07,300 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 09:53:09,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:53:09,042 INFO L93 Difference]: Finished difference Result 164118 states and 774489 transitions. [2022-12-14 09:53:09,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:53:09,043 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 09:53:09,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:53:10,229 INFO L225 Difference]: With dead ends: 164118 [2022-12-14 09:53:10,229 INFO L226 Difference]: Without dead ends: 164118 [2022-12-14 09:53:10,230 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 09:53:10,230 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 09:53:10,231 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 09:53:10,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164118 states. [2022-12-14 09:53:14,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164118 to 164118. [2022-12-14 09:53:15,146 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 09:53:16,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164118 states to 164118 states and 774489 transitions. [2022-12-14 09:53:16,418 INFO L78 Accepts]: Start accepts. Automaton has 164118 states and 774489 transitions. Word has length 4 [2022-12-14 09:53:16,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:53:16,419 INFO L495 AbstractCegarLoop]: Abstraction has 164118 states and 774489 transitions. [2022-12-14 09:53:16,419 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 09:53:16,419 INFO L276 IsEmpty]: Start isEmpty. Operand 164118 states and 774489 transitions. [2022-12-14 09:53:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:53:16,419 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:16,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:53:16,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 09:53:16,420 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 09:53:16,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:16,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1185745637, now seen corresponding path program 1 times [2022-12-14 09:53:16,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:16,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205020373] [2022-12-14 09:53:16,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:16,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:53:16,438 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 09:53:16,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:53:16,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205020373] [2022-12-14 09:53:16,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205020373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:53:16,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:53:16,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:53:16,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857817107] [2022-12-14 09:53:16,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:53:16,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:53:16,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:53:16,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:53:16,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:53:16,440 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 09:53:18,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:53:18,531 INFO L93 Difference]: Finished difference Result 213573 states and 910895 transitions. [2022-12-14 09:53:18,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:53:18,532 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 09:53:18,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:53:19,697 INFO L225 Difference]: With dead ends: 213573 [2022-12-14 09:53:19,697 INFO L226 Difference]: Without dead ends: 213573 [2022-12-14 09:53:19,697 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 09:53:19,698 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 09:53:19,698 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 09:53:20,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213573 states. [2022-12-14 09:53:24,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213573 to 155244. [2022-12-14 09:53:24,590 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 09:53:25,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155244 states to 155244 states and 713564 transitions. [2022-12-14 09:53:25,547 INFO L78 Accepts]: Start accepts. Automaton has 155244 states and 713564 transitions. Word has length 5 [2022-12-14 09:53:25,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:53:25,547 INFO L495 AbstractCegarLoop]: Abstraction has 155244 states and 713564 transitions. [2022-12-14 09:53:25,547 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 09:53:25,547 INFO L276 IsEmpty]: Start isEmpty. Operand 155244 states and 713564 transitions. [2022-12-14 09:53:25,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 09:53:25,547 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:25,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:53:25,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 09:53:25,548 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 09:53:25,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:25,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1335347142, now seen corresponding path program 1 times [2022-12-14 09:53:25,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:25,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820478717] [2022-12-14 09:53:25,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:25,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:53:25,565 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 09:53:25,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:53:25,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820478717] [2022-12-14 09:53:25,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820478717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:53:25,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:53:25,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:53:25,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124401778] [2022-12-14 09:53:25,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:53:25,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:53:25,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:53:25,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:53:25,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:53:25,567 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 09:53:27,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:53:27,109 INFO L93 Difference]: Finished difference Result 185257 states and 780760 transitions. [2022-12-14 09:53:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:53:27,110 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 09:53:27,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:53:28,354 INFO L225 Difference]: With dead ends: 185257 [2022-12-14 09:53:28,354 INFO L226 Difference]: Without dead ends: 182978 [2022-12-14 09:53:28,354 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 09:53:28,355 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 09:53:28,355 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 09:53:28,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182978 states. [2022-12-14 09:53:32,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182978 to 146723. [2022-12-14 09:53:32,405 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 09:53:33,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146723 states to 146723 states and 632166 transitions. [2022-12-14 09:53:33,261 INFO L78 Accepts]: Start accepts. Automaton has 146723 states and 632166 transitions. Word has length 7 [2022-12-14 09:53:33,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:53:33,261 INFO L495 AbstractCegarLoop]: Abstraction has 146723 states and 632166 transitions. [2022-12-14 09:53:33,261 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 09:53:33,261 INFO L276 IsEmpty]: Start isEmpty. Operand 146723 states and 632166 transitions. [2022-12-14 09:53:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:53:33,262 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:33,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:53:33,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 09:53:33,262 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 09:53:33,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:33,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1769449026, now seen corresponding path program 1 times [2022-12-14 09:53:33,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:33,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75270558] [2022-12-14 09:53:33,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:33,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:53:33,281 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 09:53:33,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:53:33,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75270558] [2022-12-14 09:53:33,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75270558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:53:33,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:53:33,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:53:33,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786309642] [2022-12-14 09:53:33,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:53:33,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:53:33,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:53:33,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:53:33,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:53:33,283 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 09:53:34,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:53:34,426 INFO L93 Difference]: Finished difference Result 116081 states and 491928 transitions. [2022-12-14 09:53:34,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:53:34,427 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 09:53:34,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:53:35,075 INFO L225 Difference]: With dead ends: 116081 [2022-12-14 09:53:35,076 INFO L226 Difference]: Without dead ends: 116075 [2022-12-14 09:53:35,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:53:35,076 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 09:53:35,077 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 09:53:35,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116075 states. [2022-12-14 09:53:37,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116075 to 114347. [2022-12-14 09:53:37,800 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 09:53:38,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114347 states to 114347 states and 486461 transitions. [2022-12-14 09:53:38,458 INFO L78 Accepts]: Start accepts. Automaton has 114347 states and 486461 transitions. Word has length 14 [2022-12-14 09:53:38,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:53:38,458 INFO L495 AbstractCegarLoop]: Abstraction has 114347 states and 486461 transitions. [2022-12-14 09:53:38,459 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 09:53:38,459 INFO L276 IsEmpty]: Start isEmpty. Operand 114347 states and 486461 transitions. [2022-12-14 09:53:38,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 09:53:38,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:38,460 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:53:38,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 09:53:38,460 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 09:53:38,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2141533893, now seen corresponding path program 1 times [2022-12-14 09:53:38,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:38,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016773662] [2022-12-14 09:53:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:38,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:53:38,513 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 09:53:38,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:53:38,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016773662] [2022-12-14 09:53:38,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016773662] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:53:38,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:53:38,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:53:38,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633900804] [2022-12-14 09:53:38,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:53:38,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:53:38,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:53:38,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:53:38,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:53:38,515 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 09:53:39,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:53:39,967 INFO L93 Difference]: Finished difference Result 174919 states and 675960 transitions. [2022-12-14 09:53:39,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:53:39,967 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 09:53:39,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:53:40,727 INFO L225 Difference]: With dead ends: 174919 [2022-12-14 09:53:40,727 INFO L226 Difference]: Without dead ends: 174832 [2022-12-14 09:53:40,727 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 09:53:40,728 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 166 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:53:40,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 126 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:53:41,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174832 states. [2022-12-14 09:53:44,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174832 to 115199. [2022-12-14 09:53:44,230 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 09:53:44,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115199 states to 115199 states and 481891 transitions. [2022-12-14 09:53:44,695 INFO L78 Accepts]: Start accepts. Automaton has 115199 states and 481891 transitions. Word has length 15 [2022-12-14 09:53:44,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:53:44,696 INFO L495 AbstractCegarLoop]: Abstraction has 115199 states and 481891 transitions. [2022-12-14 09:53:44,696 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 09:53:44,696 INFO L276 IsEmpty]: Start isEmpty. Operand 115199 states and 481891 transitions. [2022-12-14 09:53:44,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 09:53:44,697 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:44,697 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:53:44,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 09:53:44,697 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 09:53:44,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:44,698 INFO L85 PathProgramCache]: Analyzing trace with hash 258658133, now seen corresponding path program 1 times [2022-12-14 09:53:44,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:44,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954196299] [2022-12-14 09:53:44,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:44,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:53:44,767 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 09:53:44,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:53:44,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954196299] [2022-12-14 09:53:44,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954196299] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:53:44,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:53:44,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:53:44,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619370136] [2022-12-14 09:53:44,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:53:44,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:53:44,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:53:44,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:53:44,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:53:44,768 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 09:53:46,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:53:46,401 INFO L93 Difference]: Finished difference Result 169558 states and 657482 transitions. [2022-12-14 09:53:46,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:53:46,402 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 09:53:46,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:53:47,261 INFO L225 Difference]: With dead ends: 169558 [2022-12-14 09:53:47,261 INFO L226 Difference]: Without dead ends: 169471 [2022-12-14 09:53:47,261 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 09:53:47,262 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 252 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:53:47,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 117 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:53:47,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169471 states. [2022-12-14 09:53:50,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169471 to 109805. [2022-12-14 09:53:50,342 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 09:53:50,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109805 states to 109805 states and 456967 transitions. [2022-12-14 09:53:50,959 INFO L78 Accepts]: Start accepts. Automaton has 109805 states and 456967 transitions. Word has length 15 [2022-12-14 09:53:50,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:53:50,959 INFO L495 AbstractCegarLoop]: Abstraction has 109805 states and 456967 transitions. [2022-12-14 09:53:50,959 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 09:53:50,959 INFO L276 IsEmpty]: Start isEmpty. Operand 109805 states and 456967 transitions. [2022-12-14 09:53:50,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 09:53:50,961 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:53:50,961 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:53:50,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 09:53:50,961 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-12-14 09:53:50,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:53:50,961 INFO L85 PathProgramCache]: Analyzing trace with hash 2145910652, now seen corresponding path program 1 times [2022-12-14 09:53:50,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:53:50,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297623700] [2022-12-14 09:53:50,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:53:50,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:53:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:53:50,969 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:53:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:53:50,977 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:53:50,977 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:53:50,977 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (25 of 26 remaining) [2022-12-14 09:53:50,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2022-12-14 09:53:50,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2022-12-14 09:53:50,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2022-12-14 09:53:50,977 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2022-12-14 09:53:50,978 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2022-12-14 09:53:50,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2022-12-14 09:53:50,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2022-12-14 09:53:50,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2022-12-14 09:53:50,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2022-12-14 09:53:50,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2022-12-14 09:53:50,979 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2022-12-14 09:53:50,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 09:53:50,979 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:53:50,982 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2022-12-14 09:53:50,982 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:53:51,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:53:51 BasicIcfg [2022-12-14 09:53:51,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:53:51,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:53:51,011 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:53:51,011 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:53:51,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:52:34" (3/4) ... [2022-12-14 09:53:51,013 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 09:53:51,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:53:51,013 INFO L158 Benchmark]: Toolchain (without parser) took 76824.95ms. Allocated memory was 125.8MB in the beginning and 14.6GB in the end (delta: 14.4GB). Free memory was 89.8MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 9.9GB. Max. memory is 16.1GB. [2022-12-14 09:53:51,013 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:53:51,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.16ms. Allocated memory is still 125.8MB. Free memory was 89.4MB in the beginning and 68.8MB in the end (delta: 20.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 09:53:51,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.23ms. Allocated memory is still 125.8MB. Free memory was 68.8MB in the beginning and 66.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:53:51,014 INFO L158 Benchmark]: Boogie Preprocessor took 19.50ms. Allocated memory is still 125.8MB. Free memory was 66.7MB in the beginning and 65.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:53:51,014 INFO L158 Benchmark]: RCFGBuilder took 378.10ms. Allocated memory was 125.8MB in the beginning and 176.2MB in the end (delta: 50.3MB). Free memory was 65.3MB in the beginning and 145.0MB in the end (delta: -79.7MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-12-14 09:53:51,014 INFO L158 Benchmark]: TraceAbstraction took 76090.52ms. Allocated memory was 176.2MB in the beginning and 14.6GB in the end (delta: 14.4GB). Free memory was 145.0MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 9.9GB. Max. memory is 16.1GB. [2022-12-14 09:53:51,014 INFO L158 Benchmark]: Witness Printer took 2.26ms. Allocated memory is still 14.6GB. Free memory is still 4.6GB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:53:51,015 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 125.8MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.16ms. Allocated memory is still 125.8MB. Free memory was 89.4MB in the beginning and 68.8MB in the end (delta: 20.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.23ms. Allocated memory is still 125.8MB. Free memory was 68.8MB in the beginning and 66.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.50ms. Allocated memory is still 125.8MB. Free memory was 66.7MB in the beginning and 65.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.10ms. Allocated memory was 125.8MB in the beginning and 176.2MB in the end (delta: 50.3MB). Free memory was 65.3MB in the beginning and 145.0MB in the end (delta: -79.7MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. * TraceAbstraction took 76090.52ms. Allocated memory was 176.2MB in the beginning and 14.6GB in the end (delta: 14.4GB). Free memory was 145.0MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 9.9GB. Max. memory is 16.1GB. * Witness Printer took 2.26ms. Allocated memory is still 14.6GB. Free memory is still 4.6GB. 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: 2.0s, 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: 2.1s, 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: 252, independent: 77, independent conditional: 0, independent unconditional: 77, dependent: 175, dependent conditional: 0, dependent unconditional: 175, 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: 2.0s, 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: 274, independent: 138, independent conditional: 0, independent unconditional: 138, dependent: 136, dependent conditional: 0, dependent unconditional: 136, 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: 2.4s, 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: 432, independent: 256, independent conditional: 0, independent unconditional: 256, dependent: 176, dependent conditional: 0, dependent unconditional: 176, 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[10]; [L738] 0 numOfTickets = 10 [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=10, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 10 [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=10, 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=10, 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=10, salethreads={3:0}, stopSales=0] [L746] COND TRUE 0 i < 10 [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=10, 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=10, 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=10, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [_numberOfSeatsSold=0, arg={0:0}, arg={0:0}, numberOfSeatsSold=0, numOfTickets=10, stopSales=0] [L723] COND FALSE 2 !(_numberOfSeatsSold >= (10 - (((10 / 10) == 0) ? 1 : (10 / 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=10, 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: 2.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, 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: 2.7s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, 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: 0.0s, 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: 2.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 10060 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s 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: 63.9s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 19.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 575 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 575 mSDsluCounter, 506 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 258 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 926 IncrementalHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 248 mSDtfsCounter, 926 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 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: 33.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 215611 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 5/5 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 09:53:51,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f3725af-6543-47e8-a9a7-6019ea7cddce/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