./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/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_9aa6f8f0-51d9-4077-a619-e793585830fd/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/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_9aa6f8f0-51d9-4077-a619-e793585830fd/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 bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2 --- 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 08:35:04,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:35:04,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:35:04,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:35:04,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:35:04,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:35:04,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:35:04,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:35:04,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:35:04,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:35:04,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:35:04,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:35:04,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:35:04,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:35:04,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:35:04,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:35:04,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:35:04,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:35:04,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:35:04,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:35:04,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:35:04,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:35:04,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:35:04,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:35:04,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:35:04,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:35:04,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:35:04,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:35:04,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:35:04,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:35:04,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:35:04,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:35:04,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:35:04,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:35:04,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:35:04,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:35:04,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:35:04,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:35:04,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:35:04,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:35:04,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:35:04,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 08:35:04,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:35:04,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:35:04,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:35:04,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:35:04,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:35:04,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:35:04,648 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:35:04,648 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:35:04,648 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:35:04,649 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:35:04,649 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:35:04,649 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:35:04,649 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:35:04,649 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:35:04,649 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:35:04,649 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:35:04,649 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:35:04,650 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:35:04,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:35:04,650 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:35:04,650 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:35:04,650 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:35:04,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:35:04,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:35:04,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:35:04,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:35:04,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:35:04,651 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 08:35:04,651 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:35:04,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:35:04,652 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:35:04,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:35:04,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:35:04,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:35:04,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:35:04,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:35:04,652 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:35:04,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:35:04,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:35:04,653 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:35:04,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:35:04,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:35:04,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:35:04,653 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_9aa6f8f0-51d9-4077-a619-e793585830fd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bee6bfabfc9168d01d046a770b423c49a0035ad8b39e289385170f3b76ba2fb2 [2022-12-14 08:35:04,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:35:04,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:35:04,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:35:04,837 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:35:04,837 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:35:04,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i [2022-12-14 08:35:07,460 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:35:07,613 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:35:07,614 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i [2022-12-14 08:35:07,623 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/bin/utaipan-gh47qXpMRh/data/583282f22/be601982f2104c11879d0b4348fc96b5/FLAGb022062a2 [2022-12-14 08:35:07,633 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/bin/utaipan-gh47qXpMRh/data/583282f22/be601982f2104c11879d0b4348fc96b5 [2022-12-14 08:35:07,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:35:07,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:35:07,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:35:07,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:35:07,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:35:07,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:07,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f994e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07, skipping insertion in model container [2022-12-14 08:35:07,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:07,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:35:07,675 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:35:07,889 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_9aa6f8f0-51d9-4077-a619-e793585830fd/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i[30315,30328] [2022-12-14 08:35:07,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:35:07,901 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:35:07,929 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_9aa6f8f0-51d9-4077-a619-e793585830fd/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs-b.i[30315,30328] [2022-12-14 08:35:07,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:35:07,954 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:35:07,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07 WrapperNode [2022-12-14 08:35:07,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:35:07,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:35:07,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:35:07,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:35:07,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:07,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:07,990 INFO L138 Inliner]: procedures = 169, calls = 19, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 180 [2022-12-14 08:35:07,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:35:07,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:35:07,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:35:07,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:35:07,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:08,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:08,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:08,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:08,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:08,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:08,013 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:08,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:08,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:35:08,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:35:08,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:35:08,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:35:08,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (1/1) ... [2022-12-14 08:35:08,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:35:08,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:35:08,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:35:08,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa6f8f0-51d9-4077-a619-e793585830fd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:35:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:35:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-14 08:35:08,070 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-14 08:35:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:35:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:35:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:35:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:35:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:35:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:35:08,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:35:08,071 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 08:35:08,191 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:35:08,192 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:35:08,437 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:35:08,513 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:35:08,513 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 08:35:08,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:35:08 BoogieIcfgContainer [2022-12-14 08:35:08,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:35:08,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:35:08,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:35:08,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:35:08,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:35:07" (1/3) ... [2022-12-14 08:35:08,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c29f255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:35:08, skipping insertion in model container [2022-12-14 08:35:08,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:35:07" (2/3) ... [2022-12-14 08:35:08,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c29f255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:35:08, skipping insertion in model container [2022-12-14 08:35:08,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:35:08" (3/3) ... [2022-12-14 08:35:08,521 INFO L112 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs-b.i [2022-12-14 08:35:08,528 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 08:35:08,535 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:35:08,535 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-12-14 08:35:08,535 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:35:08,578 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 08:35:08,602 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:35:08,612 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 155 transitions, 315 flow [2022-12-14 08:35:08,615 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 155 transitions, 315 flow [2022-12-14 08:35:08,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 155 transitions, 315 flow [2022-12-14 08:35:08,674 INFO L130 PetriNetUnfolder]: 11/233 cut-off events. [2022-12-14 08:35:08,674 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 08:35:08,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 233 events. 11/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 733 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 137. Up to 4 conditions per place. [2022-12-14 08:35:08,684 INFO L119 LiptonReduction]: Number of co-enabled transitions 9234 [2022-12-14 08:35:12,833 INFO L134 LiptonReduction]: Checked pairs total: 44626 [2022-12-14 08:35:12,833 INFO L136 LiptonReduction]: Total number of compositions: 103 [2022-12-14 08:35:12,841 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 90 transitions, 185 flow [2022-12-14 08:35:12,895 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1794 states, 1601 states have (on average 2.3229231730168642) internal successors, (3719), 1793 states have internal predecessors, (3719), 0 states have call successors, (0), 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 08:35:12,908 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:35:12,912 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;@1473375e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:35:12,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-12-14 08:35:12,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 1794 states, 1601 states have (on average 2.3229231730168642) internal successors, (3719), 1793 states have internal predecessors, (3719), 0 states have call successors, (0), 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 08:35:12,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:35:12,920 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:12,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:35:12,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-14 08:35:12,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:12,924 INFO L85 PathProgramCache]: Analyzing trace with hash 22171, now seen corresponding path program 1 times [2022-12-14 08:35:12,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:12,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978880320] [2022-12-14 08:35:12,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:12,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:35:13,074 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 08:35:13,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:35:13,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978880320] [2022-12-14 08:35:13,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978880320] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:35:13,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:35:13,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:35:13,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029819272] [2022-12-14 08:35:13,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:35:13,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:35:13,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:35:13,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:35:13,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:35:13,109 INFO L87 Difference]: Start difference. First operand has 1794 states, 1601 states have (on average 2.3229231730168642) internal successors, (3719), 1793 states have internal predecessors, (3719), 0 states have call successors, (0), 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 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 08:35:13,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:35:13,183 INFO L93 Difference]: Finished difference Result 1394 states and 2754 transitions. [2022-12-14 08:35:13,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:35:13,185 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-12-14 08:35:13,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:35:13,205 INFO L225 Difference]: With dead ends: 1394 [2022-12-14 08:35:13,205 INFO L226 Difference]: Without dead ends: 1394 [2022-12-14 08:35:13,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:35:13,209 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:35:13,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:35:13,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2022-12-14 08:35:13,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2022-12-14 08:35:13,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1316 states have (on average 2.092705167173252) internal successors, (2754), 1393 states have internal predecessors, (2754), 0 states have call successors, (0), 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 08:35:13,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 2754 transitions. [2022-12-14 08:35:13,308 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 2754 transitions. Word has length 2 [2022-12-14 08:35:13,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:35:13,308 INFO L495 AbstractCegarLoop]: Abstraction has 1394 states and 2754 transitions. [2022-12-14 08:35:13,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 08:35:13,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 2754 transitions. [2022-12-14 08:35:13,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 08:35:13,309 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:13,310 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-12-14 08:35:13,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:35:13,310 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-12-14 08:35:13,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:13,311 INFO L85 PathProgramCache]: Analyzing trace with hash -995098748, now seen corresponding path program 1 times [2022-12-14 08:35:13,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:13,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203356819] [2022-12-14 08:35:13,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:13,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:35:13,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:35:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:35:13,359 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:35:13,359 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:35:13,360 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2022-12-14 08:35:13,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2022-12-14 08:35:13,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2022-12-14 08:35:13,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2022-12-14 08:35:13,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2022-12-14 08:35:13,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2022-12-14 08:35:13,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2022-12-14 08:35:13,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2022-12-14 08:35:13,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2022-12-14 08:35:13,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2022-12-14 08:35:13,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2022-12-14 08:35:13,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2022-12-14 08:35:13,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2022-12-14 08:35:13,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2022-12-14 08:35:13,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2022-12-14 08:35:13,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2022-12-14 08:35:13,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2022-12-14 08:35:13,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2022-12-14 08:35:13,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2022-12-14 08:35:13,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2022-12-14 08:35:13,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2022-12-14 08:35:13,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2022-12-14 08:35:13,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2022-12-14 08:35:13,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2022-12-14 08:35:13,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2022-12-14 08:35:13,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2022-12-14 08:35:13,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2022-12-14 08:35:13,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2022-12-14 08:35:13,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2022-12-14 08:35:13,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2022-12-14 08:35:13,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2022-12-14 08:35:13,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2022-12-14 08:35:13,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2022-12-14 08:35:13,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2022-12-14 08:35:13,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2022-12-14 08:35:13,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2022-12-14 08:35:13,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2022-12-14 08:35:13,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:35:13,370 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 08:35:13,371 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 08:35:13,371 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-14 08:35:13,406 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 08:35:13,410 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:35:13,411 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 213 transitions, 438 flow [2022-12-14 08:35:13,411 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 213 transitions, 438 flow [2022-12-14 08:35:13,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 213 transitions, 438 flow [2022-12-14 08:35:13,466 INFO L130 PetriNetUnfolder]: 18/371 cut-off events. [2022-12-14 08:35:13,466 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 08:35:13,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 371 events. 18/371 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1556 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 234. Up to 6 conditions per place. [2022-12-14 08:35:13,479 INFO L119 LiptonReduction]: Number of co-enabled transitions 25080 [2022-12-14 08:35:21,511 INFO L134 LiptonReduction]: Checked pairs total: 118183 [2022-12-14 08:35:21,511 INFO L136 LiptonReduction]: Total number of compositions: 129 [2022-12-14 08:35:21,512 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 130 places, 133 transitions, 278 flow [2022-12-14 08:35:22,708 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 73782 states, 71237 states have (on average 3.2045004702612405) internal successors, (228279), 73781 states have internal predecessors, (228279), 0 states have call successors, (0), 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 08:35:22,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:35:22,709 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;@1473375e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:35:22,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2022-12-14 08:35:22,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 73782 states, 71237 states have (on average 3.2045004702612405) internal successors, (228279), 73781 states have internal predecessors, (228279), 0 states have call successors, (0), 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 08:35:22,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:35:22,827 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:22,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:35:22,827 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-12-14 08:35:22,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash 34908, now seen corresponding path program 1 times [2022-12-14 08:35:22,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:22,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120472602] [2022-12-14 08:35:22,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:22,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:35:22,849 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 08:35:22,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:35:22,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120472602] [2022-12-14 08:35:22,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120472602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:35:22,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:35:22,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:35:22,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531724614] [2022-12-14 08:35:22,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:35:22,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:35:22,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:35:22,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:35:22,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:35:22,958 INFO L87 Difference]: Start difference. First operand has 73782 states, 71237 states have (on average 3.2045004702612405) internal successors, (228279), 73781 states have internal predecessors, (228279), 0 states have call successors, (0), 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 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 08:35:23,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:35:23,504 INFO L93 Difference]: Finished difference Result 50382 states and 149753 transitions. [2022-12-14 08:35:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:35:23,505 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-12-14 08:35:23,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:35:23,751 INFO L225 Difference]: With dead ends: 50382 [2022-12-14 08:35:23,751 INFO L226 Difference]: Without dead ends: 50382 [2022-12-14 08:35:23,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:35:23,753 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:35:23,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:35:23,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50382 states. [2022-12-14 08:35:25,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50382 to 50382. [2022-12-14 08:35:25,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50382 states, 49737 states have (on average 3.0108973199026883) internal successors, (149753), 50381 states have internal predecessors, (149753), 0 states have call successors, (0), 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 08:35:25,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50382 states to 50382 states and 149753 transitions. [2022-12-14 08:35:25,318 INFO L78 Accepts]: Start accepts. Automaton has 50382 states and 149753 transitions. Word has length 2 [2022-12-14 08:35:25,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:35:25,318 INFO L495 AbstractCegarLoop]: Abstraction has 50382 states and 149753 transitions. [2022-12-14 08:35:25,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 08:35:25,319 INFO L276 IsEmpty]: Start isEmpty. Operand 50382 states and 149753 transitions. [2022-12-14 08:35:25,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 08:35:25,319 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:25,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:35:25,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:35:25,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-12-14 08:35:25,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:25,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1662263494, now seen corresponding path program 1 times [2022-12-14 08:35:25,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:25,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441159057] [2022-12-14 08:35:25,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:25,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:35:25,719 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 08:35:25,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:35:25,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441159057] [2022-12-14 08:35:25,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441159057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:35:25,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:35:25,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:35:25,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658381664] [2022-12-14 08:35:25,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:35:25,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:35:25,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:35:25,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:35:25,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:35:25,722 INFO L87 Difference]: Start difference. First operand 50382 states and 149753 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:35:26,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:35:26,932 INFO L93 Difference]: Finished difference Result 93040 states and 277839 transitions. [2022-12-14 08:35:26,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:35:26,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 08:35:26,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:35:27,296 INFO L225 Difference]: With dead ends: 93040 [2022-12-14 08:35:27,296 INFO L226 Difference]: Without dead ends: 93040 [2022-12-14 08:35:27,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:35:27,298 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 294 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:35:27,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 475 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 08:35:27,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93040 states. [2022-12-14 08:35:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93040 to 55391. [2022-12-14 08:35:28,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55391 states, 54747 states have (on average 3.007507260671818) internal successors, (164652), 55390 states have internal predecessors, (164652), 0 states have call successors, (0), 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 08:35:28,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55391 states to 55391 states and 164652 transitions. [2022-12-14 08:35:28,929 INFO L78 Accepts]: Start accepts. Automaton has 55391 states and 164652 transitions. Word has length 9 [2022-12-14 08:35:28,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:35:28,930 INFO L495 AbstractCegarLoop]: Abstraction has 55391 states and 164652 transitions. [2022-12-14 08:35:28,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:35:28,930 INFO L276 IsEmpty]: Start isEmpty. Operand 55391 states and 164652 transitions. [2022-12-14 08:35:28,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 08:35:28,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:28,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:35:28,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:35:28,931 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-12-14 08:35:28,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:28,931 INFO L85 PathProgramCache]: Analyzing trace with hash -292593512, now seen corresponding path program 1 times [2022-12-14 08:35:28,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:28,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842681347] [2022-12-14 08:35:28,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:28,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:35:28,961 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 08:35:28,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:35:28,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842681347] [2022-12-14 08:35:28,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842681347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:35:28,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:35:28,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:35:28,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865715094] [2022-12-14 08:35:28,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:35:28,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:35:28,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:35:28,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:35:28,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:35:28,964 INFO L87 Difference]: Start difference. First operand 55391 states and 164652 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 08:35:29,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:35:29,503 INFO L93 Difference]: Finished difference Result 66522 states and 192931 transitions. [2022-12-14 08:35:29,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:35:29,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-12-14 08:35:29,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:35:29,737 INFO L225 Difference]: With dead ends: 66522 [2022-12-14 08:35:29,737 INFO L226 Difference]: Without dead ends: 66522 [2022-12-14 08:35:29,737 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 08:35:29,738 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 96 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:35:29,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 148 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 08:35:29,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66522 states. [2022-12-14 08:35:30,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66522 to 50711. [2022-12-14 08:35:30,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50711 states, 50261 states have (on average 2.9811185611110007) internal successors, (149834), 50710 states have internal predecessors, (149834), 0 states have call successors, (0), 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 08:35:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50711 states to 50711 states and 149834 transitions. [2022-12-14 08:35:31,069 INFO L78 Accepts]: Start accepts. Automaton has 50711 states and 149834 transitions. Word has length 11 [2022-12-14 08:35:31,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:35:31,070 INFO L495 AbstractCegarLoop]: Abstraction has 50711 states and 149834 transitions. [2022-12-14 08:35:31,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 08:35:31,070 INFO L276 IsEmpty]: Start isEmpty. Operand 50711 states and 149834 transitions. [2022-12-14 08:35:31,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 08:35:31,070 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:31,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:35:31,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:35:31,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-12-14 08:35:31,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:31,071 INFO L85 PathProgramCache]: Analyzing trace with hash 499077169, now seen corresponding path program 1 times [2022-12-14 08:35:31,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:31,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631827094] [2022-12-14 08:35:31,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:31,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:35:31,314 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 08:35:31,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:35:31,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631827094] [2022-12-14 08:35:31,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631827094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:35:31,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:35:31,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:35:31,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301832759] [2022-12-14 08:35:31,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:35:31,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 08:35:31,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:35:31,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 08:35:31,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:35:31,315 INFO L87 Difference]: Start difference. First operand 50711 states and 149834 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 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 08:35:32,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:35:32,459 INFO L93 Difference]: Finished difference Result 98794 states and 293836 transitions. [2022-12-14 08:35:32,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 08:35:32,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-12-14 08:35:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:35:32,763 INFO L225 Difference]: With dead ends: 98794 [2022-12-14 08:35:32,763 INFO L226 Difference]: Without dead ends: 98794 [2022-12-14 08:35:32,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 08:35:32,764 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 291 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:35:32,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 570 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 08:35:33,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98794 states. [2022-12-14 08:35:34,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98794 to 56403. [2022-12-14 08:35:34,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56403 states, 55954 states have (on average 2.980358866211531) internal successors, (166763), 56402 states have internal predecessors, (166763), 0 states have call successors, (0), 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 08:35:34,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56403 states to 56403 states and 166763 transitions. [2022-12-14 08:35:34,439 INFO L78 Accepts]: Start accepts. Automaton has 56403 states and 166763 transitions. Word has length 11 [2022-12-14 08:35:34,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:35:34,439 INFO L495 AbstractCegarLoop]: Abstraction has 56403 states and 166763 transitions. [2022-12-14 08:35:34,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 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 08:35:34,439 INFO L276 IsEmpty]: Start isEmpty. Operand 56403 states and 166763 transitions. [2022-12-14 08:35:34,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 08:35:34,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:35:34,440 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 08:35:34,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:35:34,440 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-12-14 08:35:34,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:35:34,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1837202512, now seen corresponding path program 1 times [2022-12-14 08:35:34,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:35:34,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168040938] [2022-12-14 08:35:34,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:35:34,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:35:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:35:34,449 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:35:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:35:34,458 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:35:34,458 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:35:34,459 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2022-12-14 08:35:34,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2022-12-14 08:35:34,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2022-12-14 08:35:34,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2022-12-14 08:35:34,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2022-12-14 08:35:34,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2022-12-14 08:35:34,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2022-12-14 08:35:34,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2022-12-14 08:35:34,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2022-12-14 08:35:34,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2022-12-14 08:35:34,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2022-12-14 08:35:34,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2022-12-14 08:35:34,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2022-12-14 08:35:34,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2022-12-14 08:35:34,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2022-12-14 08:35:34,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2022-12-14 08:35:34,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2022-12-14 08:35:34,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2022-12-14 08:35:34,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2022-12-14 08:35:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2022-12-14 08:35:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2022-12-14 08:35:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2022-12-14 08:35:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2022-12-14 08:35:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2022-12-14 08:35:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2022-12-14 08:35:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2022-12-14 08:35:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2022-12-14 08:35:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2022-12-14 08:35:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2022-12-14 08:35:34,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2022-12-14 08:35:34,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2022-12-14 08:35:34,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2022-12-14 08:35:34,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2022-12-14 08:35:34,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2022-12-14 08:35:34,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2022-12-14 08:35:34,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2022-12-14 08:35:34,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2022-12-14 08:35:34,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2022-12-14 08:35:34,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 08:35:34,463 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 08:35:34,464 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-14 08:35:34,464 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-14 08:35:34,493 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 08:35:34,497 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:35:34,497 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 265 places, 271 transitions, 563 flow [2022-12-14 08:35:34,497 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 265 places, 271 transitions, 563 flow [2022-12-14 08:35:34,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 271 transitions, 563 flow [2022-12-14 08:35:34,560 INFO L130 PetriNetUnfolder]: 25/509 cut-off events. [2022-12-14 08:35:34,560 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-14 08:35:34,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 509 events. 25/509 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2439 event pairs, 0 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 375. Up to 8 conditions per place. [2022-12-14 08:35:34,583 INFO L119 LiptonReduction]: Number of co-enabled transitions 47538 [2022-12-14 08:35:44,725 INFO L134 LiptonReduction]: Checked pairs total: 229612 [2022-12-14 08:35:44,725 INFO L136 LiptonReduction]: Total number of compositions: 165 [2022-12-14 08:35:44,726 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 172 places, 177 transitions, 375 flow [2022-12-14 08:36:49,384 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2952158 states, 2919025 states have (on average 4.216019732616199) internal successors, (12306667), 2952157 states have internal predecessors, (12306667), 0 states have call successors, (0), 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 08:36:49,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:36:49,386 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;@1473375e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:36:49,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2022-12-14 08:36:54,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 2952158 states, 2919025 states have (on average 4.216019732616199) internal successors, (12306667), 2952157 states have internal predecessors, (12306667), 0 states have call successors, (0), 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 08:36:54,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 08:36:54,300 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:36:54,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 08:36:54,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-14 08:36:54,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:36:54,301 INFO L85 PathProgramCache]: Analyzing trace with hash 50656, now seen corresponding path program 1 times [2022-12-14 08:36:54,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:36:54,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724140216] [2022-12-14 08:36:54,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:36:54,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:36:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:36:54,309 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 08:36:54,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:36:54,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724140216] [2022-12-14 08:36:54,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724140216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:36:54,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:36:54,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:36:54,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014000954] [2022-12-14 08:36:54,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:36:54,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:36:54,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:36:54,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:36:54,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:37:01,392 INFO L87 Difference]: Start difference. First operand has 2952158 states, 2919025 states have (on average 4.216019732616199) internal successors, (12306667), 2952157 states have internal predecessors, (12306667), 0 states have call successors, (0), 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 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)