./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/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_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/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_06156938-be1f-4820-b0d5-32759ecb40ef/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 a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 --- 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 13:38:28,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:38:28,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:38:28,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:38:28,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:38:28,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:38:28,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:38:28,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:38:28,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:38:28,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:38:28,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:38:28,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:38:28,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:38:28,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:38:28,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:38:28,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:38:28,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:38:28,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:38:28,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:38:28,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:38:28,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:38:28,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:38:28,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:38:28,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:38:28,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:38:28,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:38:28,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:38:28,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:38:28,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:38:28,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:38:28,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:38:28,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:38:28,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:38:28,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:38:28,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:38:28,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:38:28,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:38:28,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:38:28,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:38:28,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:38:28,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:38:28,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 13:38:28,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:38:28,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:38:28,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:38:28,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:38:28,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:38:28,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:38:28,991 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:38:28,992 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:38:28,992 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:38:28,992 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:38:28,992 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:38:28,992 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:38:28,993 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:38:28,993 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:38:28,993 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:38:28,993 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:38:28,993 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:38:28,993 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:38:28,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:38:28,994 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:38:28,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:38:28,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:38:28,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:38:28,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:38:28,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:38:28,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:38:28,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:38:28,996 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 13:38:28,996 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:38:28,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:38:28,996 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:38:28,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:38:28,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:38:28,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:38:28,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:38:28,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:38:28,997 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:38:28,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:38:28,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:38:28,998 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:38:28,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:38:28,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:38:28,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:38:28,999 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_06156938-be1f-4820-b0d5-32759ecb40ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 [2022-12-14 13:38:29,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:38:29,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:38:29,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:38:29,202 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:38:29,203 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:38:29,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-12-14 13:38:31,734 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:38:31,942 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:38:31,943 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-12-14 13:38:31,952 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/data/2a9e5628b/b3d99c85a120442b96c68b6e7d18ba93/FLAGa5d08c221 [2022-12-14 13:38:32,293 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/data/2a9e5628b/b3d99c85a120442b96c68b6e7d18ba93 [2022-12-14 13:38:32,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:38:32,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:38:32,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:38:32,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:38:32,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:38:32,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14fbf884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32, skipping insertion in model container [2022-12-14 13:38:32,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:38:32,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:38:32,448 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_06156938-be1f-4820-b0d5-32759ecb40ef/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-12-14 13:38:32,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:38:32,556 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:38:32,565 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_06156938-be1f-4820-b0d5-32759ecb40ef/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-12-14 13:38:32,586 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:38:32,607 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:38:32,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32 WrapperNode [2022-12-14 13:38:32,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:38:32,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:38:32,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:38:32,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:38:32,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,638 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 88 [2022-12-14 13:38:32,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:38:32,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:38:32,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:38:32,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:38:32,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,654 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:38:32,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:38:32,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:38:32,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:38:32,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (1/1) ... [2022-12-14 13:38:32,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:38:32,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:38:32,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:38:32,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:38:32,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:38:32,715 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-14 13:38:32,715 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-14 13:38:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:38:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 13:38:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:38:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:38:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:38:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:38:32,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:38:32,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:38:32,718 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 13:38:32,822 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:38:32,824 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:38:33,038 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:38:33,045 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:38:33,045 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:38:33,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:33 BoogieIcfgContainer [2022-12-14 13:38:33,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:38:33,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:38:33,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:38:33,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:38:33,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:38:32" (1/3) ... [2022-12-14 13:38:33,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af0d17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:38:33, skipping insertion in model container [2022-12-14 13:38:33,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:38:32" (2/3) ... [2022-12-14 13:38:33,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af0d17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:38:33, skipping insertion in model container [2022-12-14 13:38:33,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:33" (3/3) ... [2022-12-14 13:38:33,056 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2022-12-14 13:38:33,065 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 13:38:33,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:38:33,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 13:38:33,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 13:38:33,135 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 13:38:33,158 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 13:38:33,169 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 139 transitions, 286 flow [2022-12-14 13:38:33,171 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 139 transitions, 286 flow [2022-12-14 13:38:33,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 139 transitions, 286 flow [2022-12-14 13:38:33,223 INFO L130 PetriNetUnfolder]: 3/138 cut-off events. [2022-12-14 13:38:33,224 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 13:38:33,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 138 events. 3/138 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 102 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2022-12-14 13:38:33,229 INFO L119 LiptonReduction]: Number of co-enabled transitions 3876 [2022-12-14 13:38:36,155 INFO L134 LiptonReduction]: Checked pairs total: 16779 [2022-12-14 13:38:36,155 INFO L136 LiptonReduction]: Total number of compositions: 127 [2022-12-14 13:38:36,161 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 47 transitions, 102 flow [2022-12-14 13:38:36,187 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 417 states, 393 states have (on average 2.157760814249364) internal successors, (848), 416 states have internal predecessors, (848), 0 states have call successors, (0), 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 13:38:36,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:38:36,205 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;@14e10d89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:38:36,205 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-14 13:38:36,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 417 states, 393 states have (on average 2.157760814249364) internal successors, (848), 416 states have internal predecessors, (848), 0 states have call successors, (0), 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 13:38:36,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 13:38:36,211 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:36,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 13:38:36,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-12-14 13:38:36,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:36,215 INFO L85 PathProgramCache]: Analyzing trace with hash 471880, now seen corresponding path program 1 times [2022-12-14 13:38:36,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:38:36,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685774889] [2022-12-14 13:38:36,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:36,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:38:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:36,340 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 13:38:36,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:38:36,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685774889] [2022-12-14 13:38:36,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685774889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:38:36,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:38:36,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 13:38:36,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631340882] [2022-12-14 13:38:36,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:38:36,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:38:36,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:38:36,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:38:36,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:38:36,365 INFO L87 Difference]: Start difference. First operand has 417 states, 393 states have (on average 2.157760814249364) internal successors, (848), 416 states have internal predecessors, (848), 0 states have call successors, (0), 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 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 13:38:36,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:38:36,416 INFO L93 Difference]: Finished difference Result 356 states and 672 transitions. [2022-12-14 13:38:36,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:38:36,418 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-12-14 13:38:36,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:38:36,426 INFO L225 Difference]: With dead ends: 356 [2022-12-14 13:38:36,426 INFO L226 Difference]: Without dead ends: 344 [2022-12-14 13:38:36,427 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 13:38:36,429 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:38:36,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:38:36,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-12-14 13:38:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2022-12-14 13:38:36,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 333 states have (on average 1.945945945945946) internal successors, (648), 343 states have internal predecessors, (648), 0 states have call successors, (0), 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 13:38:36,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 648 transitions. [2022-12-14 13:38:36,467 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 648 transitions. Word has length 3 [2022-12-14 13:38:36,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:38:36,468 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 648 transitions. [2022-12-14 13:38:36,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 13:38:36,468 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 648 transitions. [2022-12-14 13:38:36,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 13:38:36,468 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:36,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 13:38:36,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:38:36,469 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-12-14 13:38:36,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:36,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1172400506, now seen corresponding path program 1 times [2022-12-14 13:38:36,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:38:36,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919983890] [2022-12-14 13:38:36,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:36,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:38:36,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:36,518 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 13:38:36,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:38:36,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919983890] [2022-12-14 13:38:36,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919983890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:38:36,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:38:36,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:38:36,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573125316] [2022-12-14 13:38:36,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:38:36,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:38:36,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:38:36,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:38:36,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:38:36,521 INFO L87 Difference]: Start difference. First operand 344 states and 648 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 13:38:36,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:38:36,580 INFO L93 Difference]: Finished difference Result 464 states and 857 transitions. [2022-12-14 13:38:36,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:38:36,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-12-14 13:38:36,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:38:36,582 INFO L225 Difference]: With dead ends: 464 [2022-12-14 13:38:36,582 INFO L226 Difference]: Without dead ends: 404 [2022-12-14 13:38:36,582 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 13:38:36,583 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:38:36,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 20 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:38:36,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-12-14 13:38:36,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 320. [2022-12-14 13:38:36,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 309 states have (on average 1.8932038834951457) internal successors, (585), 319 states have internal predecessors, (585), 0 states have call successors, (0), 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 13:38:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 585 transitions. [2022-12-14 13:38:36,595 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 585 transitions. Word has length 6 [2022-12-14 13:38:36,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:38:36,596 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 585 transitions. [2022-12-14 13:38:36,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 13:38:36,596 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 585 transitions. [2022-12-14 13:38:36,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:38:36,596 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:36,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:38:36,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:38:36,597 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-12-14 13:38:36,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:36,597 INFO L85 PathProgramCache]: Analyzing trace with hash 519320340, now seen corresponding path program 1 times [2022-12-14 13:38:36,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:38:36,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992066454] [2022-12-14 13:38:36,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:36,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:38:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:36,634 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 13:38:36,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:38:36,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992066454] [2022-12-14 13:38:36,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992066454] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:38:36,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:38:36,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:38:36,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898062802] [2022-12-14 13:38:36,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:38:36,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:38:36,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:38:36,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:38:36,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:38:36,636 INFO L87 Difference]: Start difference. First operand 320 states and 585 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:36,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:38:36,683 INFO L93 Difference]: Finished difference Result 323 states and 590 transitions. [2022-12-14 13:38:36,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:38:36,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 13:38:36,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:38:36,687 INFO L225 Difference]: With dead ends: 323 [2022-12-14 13:38:36,687 INFO L226 Difference]: Without dead ends: 323 [2022-12-14 13:38:36,687 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 13:38:36,688 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 17 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:38:36,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 16 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:38:36,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-12-14 13:38:36,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2022-12-14 13:38:36,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 315 states have (on average 1.873015873015873) internal successors, (590), 322 states have internal predecessors, (590), 0 states have call successors, (0), 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 13:38:36,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 590 transitions. [2022-12-14 13:38:36,697 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 590 transitions. Word has length 8 [2022-12-14 13:38:36,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:38:36,697 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 590 transitions. [2022-12-14 13:38:36,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:36,698 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 590 transitions. [2022-12-14 13:38:36,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 13:38:36,698 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:36,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:38:36,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:38:36,698 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-12-14 13:38:36,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:36,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1448333709, now seen corresponding path program 1 times [2022-12-14 13:38:36,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:38:36,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102497418] [2022-12-14 13:38:36,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:36,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:38:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:36,795 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 13:38:36,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:38:36,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102497418] [2022-12-14 13:38:36,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102497418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:38:36,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:38:36,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:38:36,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632833105] [2022-12-14 13:38:36,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:38:36,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:38:36,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:38:36,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:38:36,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:38:36,797 INFO L87 Difference]: Start difference. First operand 323 states and 590 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) 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 13:38:36,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:38:36,840 INFO L93 Difference]: Finished difference Result 146 states and 216 transitions. [2022-12-14 13:38:36,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:38:36,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) 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 13:38:36,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:38:36,841 INFO L225 Difference]: With dead ends: 146 [2022-12-14 13:38:36,841 INFO L226 Difference]: Without dead ends: 146 [2022-12-14 13:38:36,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:38:36,842 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:38:36,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 9 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:38:36,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-14 13:38:36,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 126. [2022-12-14 13:38:36,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 123 states have (on average 1.5284552845528456) internal successors, (188), 125 states have internal predecessors, (188), 0 states have call successors, (0), 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 13:38:36,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 188 transitions. [2022-12-14 13:38:36,846 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 188 transitions. Word has length 11 [2022-12-14 13:38:36,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:38:36,846 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 188 transitions. [2022-12-14 13:38:36,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) 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 13:38:36,846 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 188 transitions. [2022-12-14 13:38:36,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 13:38:36,846 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:38:36,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:38:36,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 13:38:36,847 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2022-12-14 13:38:36,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:38:36,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1766676939, now seen corresponding path program 1 times [2022-12-14 13:38:36,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:38:36,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806111629] [2022-12-14 13:38:36,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:38:36,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:38:36,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:38:36,872 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 13:38:36,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:38:36,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806111629] [2022-12-14 13:38:36,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806111629] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:38:36,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:38:36,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:38:36,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687802510] [2022-12-14 13:38:36,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:38:36,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:38:36,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:38:36,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:38:36,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:38:36,874 INFO L87 Difference]: Start difference. First operand 126 states and 188 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:36,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:38:36,907 INFO L93 Difference]: Finished difference Result 119 states and 177 transitions. [2022-12-14 13:38:36,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:38:36,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 13:38:36,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:38:36,907 INFO L225 Difference]: With dead ends: 119 [2022-12-14 13:38:36,908 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 13:38:36,908 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 13:38:36,908 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:38:36,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:38:36,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 13:38:36,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 13:38:36,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 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 13:38:36,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 13:38:36,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-14 13:38:36,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:38:36,910 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 13:38:36,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:38:36,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 13:38:36,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 13:38:36,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2022-12-14 13:38:36,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2022-12-14 13:38:36,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2022-12-14 13:38:36,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2022-12-14 13:38:36,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2022-12-14 13:38:36,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2022-12-14 13:38:36,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2022-12-14 13:38:36,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2022-12-14 13:38:36,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2022-12-14 13:38:36,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2022-12-14 13:38:36,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2022-12-14 13:38:36,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2022-12-14 13:38:36,913 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2022-12-14 13:38:36,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:38:36,915 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 13:38:36,919 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 13:38:36,919 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:38:36,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:38:36 BasicIcfg [2022-12-14 13:38:36,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:38:36,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:38:36,921 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:38:36,922 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:38:36,922 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:38:33" (3/4) ... [2022-12-14 13:38:36,924 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 13:38:36,928 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-12-14 13:38:36,931 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-14 13:38:36,931 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 13:38:36,931 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 13:38:36,932 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 13:38:36,955 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 13:38:36,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:38:36,956 INFO L158 Benchmark]: Toolchain (without parser) took 4660.14ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 104.7MB in the beginning and 104.4MB in the end (delta: 287.2kB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2022-12-14 13:38:36,956 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:38:36,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.01ms. Allocated memory is still 138.4MB. Free memory was 104.7MB in the beginning and 85.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 13:38:36,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.96ms. Allocated memory is still 138.4MB. Free memory was 85.1MB in the beginning and 83.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:38:36,957 INFO L158 Benchmark]: Boogie Preprocessor took 17.99ms. Allocated memory is still 138.4MB. Free memory was 83.0MB in the beginning and 81.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:38:36,957 INFO L158 Benchmark]: RCFGBuilder took 390.26ms. Allocated memory is still 138.4MB. Free memory was 81.3MB in the beginning and 65.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 13:38:36,957 INFO L158 Benchmark]: TraceAbstraction took 3871.31ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 64.6MB in the beginning and 107.6MB in the end (delta: -43.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:38:36,957 INFO L158 Benchmark]: Witness Printer took 34.19ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 104.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 13:38:36,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory was 50.4MB in the beginning and 50.3MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.01ms. Allocated memory is still 138.4MB. Free memory was 104.7MB in the beginning and 85.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.96ms. Allocated memory is still 138.4MB. Free memory was 85.1MB in the beginning and 83.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.99ms. Allocated memory is still 138.4MB. Free memory was 83.0MB in the beginning and 81.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 390.26ms. Allocated memory is still 138.4MB. Free memory was 81.3MB in the beginning and 65.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3871.31ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 64.6MB in the beginning and 107.6MB in the end (delta: -43.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.19ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 104.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 140 PlacesBefore, 48 PlacesAfterwards, 139 TransitionsBefore, 47 TransitionsAfterwards, 3876 CoEnabledTransitionPairs, 9 FixpointIterations, 43 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 0 ChoiceCompositions, 127 TotalNumberOfCompositions, 16779 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5872, independent: 5278, independent conditional: 0, independent unconditional: 5278, dependent: 594, dependent conditional: 0, dependent unconditional: 594, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2969, independent: 2855, independent conditional: 0, independent unconditional: 2855, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2969, independent: 2527, independent conditional: 0, independent unconditional: 2527, dependent: 442, dependent conditional: 0, dependent unconditional: 442, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 442, independent: 328, independent conditional: 0, independent unconditional: 328, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 327, independent: 167, independent conditional: 0, independent unconditional: 167, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5872, independent: 2423, independent conditional: 0, independent unconditional: 2423, dependent: 480, dependent conditional: 0, dependent unconditional: 480, unknown: 2969, unknown conditional: 0, unknown unconditional: 2969] , Statistics on independence cache: Total cache size (in pairs): 362, Positive cache size: 302, Positive conditional cache size: 0, Positive unconditional cache size: 302, Negative cache size: 60, Negative conditional cache size: 0, Negative unconditional cache size: 60, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 173 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 266 IncrementalHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 53 mSDtfsCounter, 266 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=417occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 104 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 13:38:36,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06156938-be1f-4820-b0d5-32759ecb40ef/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE