./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.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_0bba4ea2-c191-4db8-bfc6-89767585d569/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/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_0bba4ea2-c191-4db8-bfc6-89767585d569/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/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_0bba4ea2-c191-4db8-bfc6-89767585d569/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 bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --- 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 08:46:39,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:46:39,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:46:39,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:46:39,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:46:39,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:46:39,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:46:39,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:46:39,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:46:39,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:46:39,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:46:39,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:46:39,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:46:39,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:46:39,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:46:39,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:46:39,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:46:39,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:46:39,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:46:39,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:46:39,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:46:39,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:46:39,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:46:39,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:46:39,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:46:39,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:46:39,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:46:39,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:46:39,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:46:39,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:46:39,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:46:39,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:46:39,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:46:39,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:46:39,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:46:39,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:46:39,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:46:39,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:46:39,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:46:39,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:46:39,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:46:39,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 08:46:39,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:46:39,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:46:39,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:46:39,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:46:39,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:46:39,993 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:46:39,993 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:46:39,993 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:46:39,993 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:46:39,994 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:46:39,994 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:46:39,994 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:46:39,994 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:46:39,994 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:46:39,994 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:46:39,994 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:46:39,994 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:46:39,994 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:46:39,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:46:39,995 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:46:39,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:46:39,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:46:39,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:46:39,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:46:39,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:46:39,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:46:39,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:46:39,996 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 08:46:39,996 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:46:39,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:46:39,996 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:46:39,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:46:39,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:46:39,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:46:39,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:46:39,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:46:39,997 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:46:39,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:46:39,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:46:39,997 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:46:39,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:46:39,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:46:39,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:46:39,998 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_0bba4ea2-c191-4db8-bfc6-89767585d569/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 [2022-12-14 08:46:40,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:46:40,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:46:40,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:46:40,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:46:40,193 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:46:40,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-12-14 08:46:42,740 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:46:42,969 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:46:42,970 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/sv-benchmarks/c/goblint-regression/04-mutex_35-trylock_rc.i [2022-12-14 08:46:42,983 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/bin/utaipan-gh47qXpMRh/data/517b9fcb7/a7db7ac7b9984aefab3fbbc402370f9f/FLAGc6b893884 [2022-12-14 08:46:43,320 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/bin/utaipan-gh47qXpMRh/data/517b9fcb7/a7db7ac7b9984aefab3fbbc402370f9f [2022-12-14 08:46:43,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:46:43,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:46:43,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:46:43,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:46:43,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:46:43,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:46:43" (1/1) ... [2022-12-14 08:46:43,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48942362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:43, skipping insertion in model container [2022-12-14 08:46:43,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:46:43" (1/1) ... [2022-12-14 08:46:43,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:46:43,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:46:43,945 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:46:43,951 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:43,953 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:43,956 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:43,957 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:43,957 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-14 08:46:43,960 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:46:43,960 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-14 08:46:43,961 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:43,962 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:43,963 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:43,964 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:43,967 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:46:43,970 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:43,971 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:43,972 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:43,973 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:43,974 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:43,975 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:43,976 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:43,976 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:43,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:46:43,989 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:46:44,030 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:46:44,031 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:44,031 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:44,032 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:44,033 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:44,034 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-14 08:46:44,035 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:46:44,035 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-14 08:46:44,036 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:44,037 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:44,038 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:44,039 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:44,041 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:46:44,043 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:44,044 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:44,045 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:44,046 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:44,048 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:44,049 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:44,050 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 08:46:44,051 WARN L623 FunctionHandler]: Unknown extern function strerror [2022-12-14 08:46:44,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:46:44,168 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:46:44,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44 WrapperNode [2022-12-14 08:46:44,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:46:44,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:46:44,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:46:44,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:46:44,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (1/1) ... [2022-12-14 08:46:44,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (1/1) ... [2022-12-14 08:46:44,228 INFO L138 Inliner]: procedures = 524, calls = 59, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 137 [2022-12-14 08:46:44,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:46:44,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:46:44,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:46:44,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:46:44,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (1/1) ... [2022-12-14 08:46:44,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (1/1) ... [2022-12-14 08:46:44,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (1/1) ... [2022-12-14 08:46:44,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (1/1) ... [2022-12-14 08:46:44,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (1/1) ... [2022-12-14 08:46:44,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (1/1) ... [2022-12-14 08:46:44,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (1/1) ... [2022-12-14 08:46:44,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (1/1) ... [2022-12-14 08:46:44,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:46:44,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:46:44,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:46:44,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:46:44,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (1/1) ... [2022-12-14 08:46:44,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:46:44,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:46:44,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:46:44,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:46:44,320 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2022-12-14 08:46:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2022-12-14 08:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-14 08:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2022-12-14 08:46:44,321 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2022-12-14 08:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2022-12-14 08:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:46:44,321 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 08:46:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:46:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:46:44,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:46:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:46:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-12-14 08:46:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 08:46:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:46:44,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:46:44,324 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 08:46:44,560 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:46:44,562 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:46:44,801 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:46:44,812 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:46:44,812 INFO L300 CfgBuilder]: Removed 19 assume(true) statements. [2022-12-14 08:46:44,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:46:44 BoogieIcfgContainer [2022-12-14 08:46:44,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:46:44,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:46:44,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:46:44,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:46:44,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:46:43" (1/3) ... [2022-12-14 08:46:44,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339ce436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:46:44, skipping insertion in model container [2022-12-14 08:46:44,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:46:44" (2/3) ... [2022-12-14 08:46:44,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@339ce436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:46:44, skipping insertion in model container [2022-12-14 08:46:44,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:46:44" (3/3) ... [2022-12-14 08:46:44,820 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2022-12-14 08:46:44,827 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 08:46:44,834 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:46:44,834 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-14 08:46:44,835 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 08:46:44,887 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 08:46:44,911 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 08:46:44,922 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 252 places, 276 transitions, 568 flow [2022-12-14 08:46:44,924 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 252 places, 276 transitions, 568 flow [2022-12-14 08:46:44,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 276 transitions, 568 flow [2022-12-14 08:46:44,986 INFO L130 PetriNetUnfolder]: 31/274 cut-off events. [2022-12-14 08:46:44,986 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 08:46:44,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 274 events. 31/274 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 660 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 173. Up to 5 conditions per place. [2022-12-14 08:46:44,997 INFO L119 LiptonReduction]: Number of co-enabled transitions 19072 [2022-12-14 08:46:53,928 INFO L134 LiptonReduction]: Checked pairs total: 37721 [2022-12-14 08:46:53,928 INFO L136 LiptonReduction]: Total number of compositions: 295 [2022-12-14 08:46:53,934 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 82 transitions, 180 flow [2022-12-14 08:46:54,007 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2342 states, 2195 states have (on average 3.955353075170843) internal successors, (8682), 2341 states have internal predecessors, (8682), 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 08:46:54,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:46:54,026 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;@8734579, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:46:54,026 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-12-14 08:46:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 2342 states, 2195 states have (on average 3.955353075170843) internal successors, (8682), 2341 states have internal predecessors, (8682), 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 08:46:54,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 08:46:54,036 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:54,037 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 08:46:54,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-14 08:46:54,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:54,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1135, now seen corresponding path program 1 times [2022-12-14 08:46:54,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:54,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408169440] [2022-12-14 08:46:54,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:54,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:54,182 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 08:46:54,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:54,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408169440] [2022-12-14 08:46:54,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408169440] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:54,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:54,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 08:46:54,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716445087] [2022-12-14 08:46:54,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:54,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:46:54,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:54,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:46:54,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:46:54,211 INFO L87 Difference]: Start difference. First operand has 2342 states, 2195 states have (on average 3.955353075170843) internal successors, (8682), 2341 states have internal predecessors, (8682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:46:54,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:54,291 INFO L93 Difference]: Finished difference Result 1127 states and 3219 transitions. [2022-12-14 08:46:54,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:46:54,293 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-12-14 08:46:54,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:54,307 INFO L225 Difference]: With dead ends: 1127 [2022-12-14 08:46:54,307 INFO L226 Difference]: Without dead ends: 1121 [2022-12-14 08:46:54,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:46:54,310 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:54,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:46:54,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2022-12-14 08:46:54,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2022-12-14 08:46:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1073 states have (on average 2.9878844361602983) internal successors, (3206), 1120 states have internal predecessors, (3206), 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 08:46:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 3206 transitions. [2022-12-14 08:46:54,376 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 3206 transitions. Word has length 1 [2022-12-14 08:46:54,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:54,377 INFO L495 AbstractCegarLoop]: Abstraction has 1121 states and 3206 transitions. [2022-12-14 08:46:54,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:46:54,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 3206 transitions. [2022-12-14 08:46:54,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 08:46:54,377 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:54,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 08:46:54,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:46:54,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-14 08:46:54,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:54,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1059085818, now seen corresponding path program 1 times [2022-12-14 08:46:54,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:54,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049081515] [2022-12-14 08:46:54,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:54,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:54,646 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 08:46:54,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:54,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049081515] [2022-12-14 08:46:54,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049081515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:54,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:54,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:46:54,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576148740] [2022-12-14 08:46:54,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:54,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:46:54,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:54,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:46:54,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:46:54,649 INFO L87 Difference]: Start difference. First operand 1121 states and 3206 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 08:46:54,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:54,751 INFO L93 Difference]: Finished difference Result 917 states and 2565 transitions. [2022-12-14 08:46:54,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:46:54,752 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 08:46:54,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:54,757 INFO L225 Difference]: With dead ends: 917 [2022-12-14 08:46:54,757 INFO L226 Difference]: Without dead ends: 917 [2022-12-14 08:46:54,758 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 08:46:54,759 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 32 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:54,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 39 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:46:54,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-12-14 08:46:54,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2022-12-14 08:46:54,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 884 states have (on average 2.9015837104072397) internal successors, (2565), 916 states have internal predecessors, (2565), 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 08:46:54,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 2565 transitions. [2022-12-14 08:46:54,791 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 2565 transitions. Word has length 6 [2022-12-14 08:46:54,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:54,792 INFO L495 AbstractCegarLoop]: Abstraction has 917 states and 2565 transitions. [2022-12-14 08:46:54,792 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 08:46:54,792 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 2565 transitions. [2022-12-14 08:46:54,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 08:46:54,793 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:54,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:54,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:46:54,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-14 08:46:54,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:54,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1493427200, now seen corresponding path program 1 times [2022-12-14 08:46:54,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:54,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567247808] [2022-12-14 08:46:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:54,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:54,855 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 08:46:54,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:54,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567247808] [2022-12-14 08:46:54,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567247808] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:54,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:54,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:46:54,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413933899] [2022-12-14 08:46:54,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:54,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:46:54,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:54,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:46:54,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:46:54,858 INFO L87 Difference]: Start difference. First operand 917 states and 2565 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:46:54,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:54,967 INFO L93 Difference]: Finished difference Result 1402 states and 3886 transitions. [2022-12-14 08:46:54,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:46:54,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 08:46:54,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:54,975 INFO L225 Difference]: With dead ends: 1402 [2022-12-14 08:46:54,975 INFO L226 Difference]: Without dead ends: 1402 [2022-12-14 08:46:54,975 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 08:46:54,976 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 33 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:54,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 14 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:46:54,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2022-12-14 08:46:55,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 982. [2022-12-14 08:46:55,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 954 states have (on average 2.8259958071278826) internal successors, (2696), 981 states have internal predecessors, (2696), 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 08:46:55,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 2696 transitions. [2022-12-14 08:46:55,014 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 2696 transitions. Word has length 7 [2022-12-14 08:46:55,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:55,014 INFO L495 AbstractCegarLoop]: Abstraction has 982 states and 2696 transitions. [2022-12-14 08:46:55,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:46:55,015 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 2696 transitions. [2022-12-14 08:46:55,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 08:46:55,016 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:55,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:55,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:46:55,017 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-14 08:46:55,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:55,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1376846482, now seen corresponding path program 1 times [2022-12-14 08:46:55,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:55,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168192946] [2022-12-14 08:46:55,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:55,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:55,085 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 08:46:55,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:55,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168192946] [2022-12-14 08:46:55,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168192946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:55,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:55,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:46:55,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828053936] [2022-12-14 08:46:55,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:55,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:46:55,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:55,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:46:55,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:46:55,087 INFO L87 Difference]: Start difference. First operand 982 states and 2696 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 08:46:55,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:55,175 INFO L93 Difference]: Finished difference Result 1007 states and 2771 transitions. [2022-12-14 08:46:55,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:46:55,176 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 08:46:55,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:55,181 INFO L225 Difference]: With dead ends: 1007 [2022-12-14 08:46:55,181 INFO L226 Difference]: Without dead ends: 980 [2022-12-14 08:46:55,182 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 08:46:55,183 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:55,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 17 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:46:55,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2022-12-14 08:46:55,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2022-12-14 08:46:55,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 957 states have (on average 2.812957157784744) internal successors, (2692), 979 states have internal predecessors, (2692), 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 08:46:55,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 2692 transitions. [2022-12-14 08:46:55,215 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 2692 transitions. Word has length 11 [2022-12-14 08:46:55,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:55,216 INFO L495 AbstractCegarLoop]: Abstraction has 980 states and 2692 transitions. [2022-12-14 08:46:55,216 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 08:46:55,216 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 2692 transitions. [2022-12-14 08:46:55,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 08:46:55,219 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:55,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:55,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:46:55,219 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-14 08:46:55,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:55,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1551983906, now seen corresponding path program 1 times [2022-12-14 08:46:55,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:55,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673489951] [2022-12-14 08:46:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:55,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:55,426 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 08:46:55,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:55,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673489951] [2022-12-14 08:46:55,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673489951] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:55,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:55,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:46:55,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626608026] [2022-12-14 08:46:55,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:55,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:46:55,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:55,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:46:55,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:46:55,428 INFO L87 Difference]: Start difference. First operand 980 states and 2692 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 08:46:55,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:55,506 INFO L93 Difference]: Finished difference Result 961 states and 2653 transitions. [2022-12-14 08:46:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:46:55,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-12-14 08:46:55,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:55,512 INFO L225 Difference]: With dead ends: 961 [2022-12-14 08:46:55,512 INFO L226 Difference]: Without dead ends: 897 [2022-12-14 08:46:55,512 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 08:46:55,513 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:55,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 34 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:46:55,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2022-12-14 08:46:55,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 897. [2022-12-14 08:46:55,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 879 states have (on average 2.806598407281001) internal successors, (2467), 896 states have internal predecessors, (2467), 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 08:46:55,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 2467 transitions. [2022-12-14 08:46:55,542 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 2467 transitions. Word has length 12 [2022-12-14 08:46:55,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:55,542 INFO L495 AbstractCegarLoop]: Abstraction has 897 states and 2467 transitions. [2022-12-14 08:46:55,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 08:46:55,543 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 2467 transitions. [2022-12-14 08:46:55,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 08:46:55,544 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:55,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:55,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:46:55,544 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting monitor_threadErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-14 08:46:55,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:55,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2083109773, now seen corresponding path program 1 times [2022-12-14 08:46:55,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:55,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937602764] [2022-12-14 08:46:55,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:55,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:46:55,606 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 08:46:55,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:46:55,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937602764] [2022-12-14 08:46:55,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937602764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:55,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:55,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:46:55,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513416498] [2022-12-14 08:46:55,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:55,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:46:55,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:46:55,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:46:55,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:46:55,608 INFO L87 Difference]: Start difference. First operand 897 states and 2467 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 08:46:55,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:55,692 INFO L93 Difference]: Finished difference Result 908 states and 2499 transitions. [2022-12-14 08:46:55,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:46:55,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-12-14 08:46:55,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:55,697 INFO L225 Difference]: With dead ends: 908 [2022-12-14 08:46:55,697 INFO L226 Difference]: Without dead ends: 822 [2022-12-14 08:46:55,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:46:55,698 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:55,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 17 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:46:55,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-12-14 08:46:55,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2022-12-14 08:46:55,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 808 states have (on average 2.8007425742574257) internal successors, (2263), 821 states have internal predecessors, (2263), 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 08:46:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 2263 transitions. [2022-12-14 08:46:55,714 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 2263 transitions. Word has length 13 [2022-12-14 08:46:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:55,714 INFO L495 AbstractCegarLoop]: Abstraction has 822 states and 2263 transitions. [2022-12-14 08:46:55,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 08:46:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 2263 transitions. [2022-12-14 08:46:55,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 08:46:55,715 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:55,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:55,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:46:55,715 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-12-14 08:46:55,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash 2129442427, now seen corresponding path program 1 times [2022-12-14 08:46:55,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:46:55,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387701046] [2022-12-14 08:46:55,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:55,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:46:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:46:55,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:46:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:46:55,761 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:46:55,761 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:46:55,762 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2022-12-14 08:46:55,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-12-14 08:46:55,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-12-14 08:46:55,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-12-14 08:46:55,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-12-14 08:46:55,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-12-14 08:46:55,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-12-14 08:46:55,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-12-14 08:46:55,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-12-14 08:46:55,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-12-14 08:46:55,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-12-14 08:46:55,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-12-14 08:46:55,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-12-14 08:46:55,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-12-14 08:46:55,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-12-14 08:46:55,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-12-14 08:46:55,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-12-14 08:46:55,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-12-14 08:46:55,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-12-14 08:46:55,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 08:46:55,767 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:55,772 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 08:46:55,772 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:46:55,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:46:55 BasicIcfg [2022-12-14 08:46:55,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:46:55,799 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:46:55,799 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:46:55,799 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:46:55,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:46:44" (3/4) ... [2022-12-14 08:46:55,801 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:46:55,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:46:55,802 INFO L158 Benchmark]: Toolchain (without parser) took 12477.51ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 127.5MB in the beginning and 99.5MB in the end (delta: 28.1MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2022-12-14 08:46:55,802 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 137.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:46:55,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 842.36ms. Allocated memory is still 167.8MB. Free memory was 127.5MB in the beginning and 131.5MB in the end (delta: -3.9MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. [2022-12-14 08:46:55,803 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.99ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 131.5MB in the beginning and 164.6MB in the end (delta: -33.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-12-14 08:46:55,803 INFO L158 Benchmark]: Boogie Preprocessor took 34.52ms. Allocated memory is still 201.3MB. Free memory was 164.6MB in the beginning and 161.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:46:55,803 INFO L158 Benchmark]: RCFGBuilder took 550.81ms. Allocated memory is still 201.3MB. Free memory was 160.4MB in the beginning and 133.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 08:46:55,803 INFO L158 Benchmark]: TraceAbstraction took 10982.70ms. Allocated memory is still 201.3MB. Free memory was 132.1MB in the beginning and 99.5MB in the end (delta: 32.7MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-12-14 08:46:55,803 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 201.3MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:46:55,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 137.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 842.36ms. Allocated memory is still 167.8MB. Free memory was 127.5MB in the beginning and 131.5MB in the end (delta: -3.9MB). Peak memory consumption was 75.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.99ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 131.5MB in the beginning and 164.6MB in the end (delta: -33.2MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.52ms. Allocated memory is still 201.3MB. Free memory was 164.6MB in the beginning and 161.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 550.81ms. Allocated memory is still 201.3MB. Free memory was 160.4MB in the beginning and 133.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 10982.70ms. Allocated memory is still 201.3MB. Free memory was 132.1MB in the beginning and 99.5MB in the end (delta: 32.7MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 201.3MB. Free memory is still 99.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0s, 252 PlacesBefore, 67 PlacesAfterwards, 276 TransitionsBefore, 82 TransitionsAfterwards, 19072 CoEnabledTransitionPairs, 7 FixpointIterations, 76 TrivialSequentialCompositions, 161 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 38 ConcurrentYvCompositions, 9 ChoiceCompositions, 295 TotalNumberOfCompositions, 37721 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22488, independent: 22109, independent conditional: 0, independent unconditional: 22109, dependent: 379, dependent conditional: 0, dependent unconditional: 379, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14092, independent: 13998, independent conditional: 0, independent unconditional: 13998, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14092, independent: 13799, independent conditional: 0, independent unconditional: 13799, dependent: 293, dependent conditional: 0, dependent unconditional: 293, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 293, independent: 199, independent conditional: 0, independent unconditional: 199, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 192, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 22488, independent: 8111, independent conditional: 0, independent unconditional: 8111, dependent: 285, dependent conditional: 0, dependent unconditional: 285, unknown: 14092, unknown conditional: 0, unknown unconditional: 14092] , Statistics on independence cache: Total cache size (in pairs): 858, Positive cache size: 823, Positive conditional cache size: 0, Positive unconditional cache size: 823, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1808]: Data race detected Data race detected The following path leads to a data race: [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1798] 0 long counter; [L1799] 0 time_t end_time; [L1836] 0 int status; [L1837] 0 pthread_t counter_thread_id; [L1838] 0 pthread_t monitor_thread_id; [L1839] 0 end_time = time (((void *)0)) + 60 [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1153, arg={0:0}, argc=1153, argv={1151:1152}, argv={1151:1152}, counter=0, counter_thread_id={27:0}, end_time=1, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-1] [L1801] 1 int status; [L1802] 1 int spin; VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}] [L1803] 1 time (((void *)0)) < end_time [L1803] COND TRUE 1 time (((void *)0)) < end_time [L1804] 1 status = pthread_mutex_lock (&mutex) [L1805] COND FALSE 1 !(status != 0) [L1807] 1 spin = 0 VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, spin=0, status=0] [L1807] COND TRUE 1 spin < 10000000 [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, counter=1, counter++=1150, counter++=0, end_time=1, mutex={25:0}, spin=0, status=0] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) [L1841] COND FALSE 0 !(status != 0) [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [\old(argc)=1153, arg={0:0}, arg={0:0}, arg={0:0}, argc=1153, argv={1151:1152}, argv={1151:1152}, counter=1, counter++=1150, counter++=0, counter_thread_id={27:0}, end_time=1, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0))=0, spin=0, status=0, status=0] [L1817] 2 int status; [L1818] 2 int misses = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1150, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=0] [L1819] 2 time (((void *)0)) < end_time [L1819] COND TRUE 2 time (((void *)0)) < end_time [L1821] 2 status = pthread_mutex_trylock (&mutex) [L1822] COND FALSE 2 !(status != 16) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1150, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1150, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=1, counter++=1150, counter++=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=16, status=0] Now there is a data race on ~counter~0 between C: counter++ [1830] and C: counter++ [1808] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1846]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1849]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1843]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1840]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 359 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 121 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 439 IncrementalHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 99 mSDtfsCounter, 439 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2342occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 420 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 08:46:55,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bba4ea2-c191-4db8-bfc6-89767585d569/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE