./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 --- 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-e04fb08 [2022-11-16 11:52:30,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:52:30,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:52:30,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:52:30,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:52:30,878 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:52:30,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:52:30,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:52:30,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:52:30,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:52:30,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:52:30,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:52:30,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:52:30,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:52:30,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:52:30,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:52:30,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:52:30,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:52:30,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:52:30,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:52:30,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:52:30,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:52:30,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:52:30,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:52:30,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:52:30,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:52:30,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:52:30,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:52:30,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:52:30,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:52:30,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:52:30,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:52:30,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:52:30,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:52:30,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:52:30,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:52:30,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:52:30,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:52:30,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:52:30,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:52:30,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:52:30,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:52:30,957 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:52:30,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:52:30,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:52:30,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:52:30,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:52:30,958 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:52:30,959 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:52:30,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:52:30,959 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:52:30,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:52:30,960 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:52:30,960 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:52:30,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:52:30,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:52:30,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:52:30,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:52:30,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:52:30,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:52:30,961 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:52:30,961 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:52:30,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:52:30,961 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:52:30,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:52:30,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:52:30,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:52:30,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:52:30,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:52:30,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:52:30,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:52:30,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:52:30,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:52:30,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:52:30,963 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:52:30,964 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:52:30,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:52:30,964 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_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 [2022-11-16 11:52:31,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:52:31,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:52:31,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:52:31,286 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:52:31,287 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:52:31,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i [2022-11-16 11:52:31,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/data/c54d7f967/c59dc0975b9a47bba1cf6571abf09e9d/FLAG751a197b5 [2022-11-16 11:52:32,005 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:52:32,011 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i [2022-11-16 11:52:32,037 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/data/c54d7f967/c59dc0975b9a47bba1cf6571abf09e9d/FLAG751a197b5 [2022-11-16 11:52:32,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/data/c54d7f967/c59dc0975b9a47bba1cf6571abf09e9d [2022-11-16 11:52:32,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:52:32,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:52:32,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:52:32,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:52:32,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:52:32,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:32,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac1ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32, skipping insertion in model container [2022-11-16 11:52:32,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:32,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:52:32,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:52:32,735 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i[30176,30189] [2022-11-16 11:52:32,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:52:32,777 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:52:32,815 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i[30176,30189] [2022-11-16 11:52:32,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:52:32,871 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:52:32,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32 WrapperNode [2022-11-16 11:52:32,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:52:32,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:52:32,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:52:32,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:52:32,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:32,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:32,976 INFO L138 Inliner]: procedures = 171, calls = 47, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 143 [2022-11-16 11:52:32,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:52:32,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:52:32,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:52:32,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:52:32,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:32,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:33,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:33,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:33,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:33,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:33,050 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:33,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:33,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:52:33,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:52:33,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:52:33,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:52:33,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (1/1) ... [2022-11-16 11:52:33,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:52:33,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:52:33,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:52:33,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddbd3bdb-a709-45aa-8e00-bcd0720d8453/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:52:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:52:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:52:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:52:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:52:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:52:33,156 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:52:33,157 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:52:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:52:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2022-11-16 11:52:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:52:33,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:52:33,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:52:33,160 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:52:33,329 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:52:33,331 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:52:33,875 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:52:33,886 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:52:33,893 INFO L300 CfgBuilder]: Removed 23 assume(true) statements. [2022-11-16 11:52:33,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:52:33 BoogieIcfgContainer [2022-11-16 11:52:33,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:52:33,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:52:33,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:52:33,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:52:33,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:52:32" (1/3) ... [2022-11-16 11:52:33,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1580c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:52:33, skipping insertion in model container [2022-11-16 11:52:33,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:52:32" (2/3) ... [2022-11-16 11:52:33,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1580c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:52:33, skipping insertion in model container [2022-11-16 11:52:33,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:52:33" (3/3) ... [2022-11-16 11:52:33,909 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_42-trylock2_racefree.i [2022-11-16 11:52:33,923 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:52:33,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:52:33,935 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-16 11:52:33,935 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:52:34,053 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 11:52:34,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 216 places, 242 transitions, 492 flow [2022-11-16 11:52:34,268 INFO L130 PetriNetUnfolder]: 45/350 cut-off events. [2022-11-16 11:52:34,269 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:52:34,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 350 events. 45/350 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1604 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 198. Up to 6 conditions per place. [2022-11-16 11:52:34,278 INFO L82 GeneralOperation]: Start removeDead. Operand has 216 places, 242 transitions, 492 flow [2022-11-16 11:52:34,286 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 242 transitions, 492 flow [2022-11-16 11:52:34,297 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:52:34,304 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=PETRI_NET, 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;@49071e65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:52:34,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-16 11:52:34,324 INFO L130 PetriNetUnfolder]: 2/64 cut-off events. [2022-11-16 11:52:34,324 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:52:34,324 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:34,325 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:34,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-16 11:52:34,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:34,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1465552392, now seen corresponding path program 1 times [2022-11-16 11:52:34,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:34,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936682760] [2022-11-16 11:52:34,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:34,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:34,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:34,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:34,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936682760] [2022-11-16 11:52:34,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936682760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:34,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:34,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:52:34,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002766472] [2022-11-16 11:52:34,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:34,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:52:34,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:34,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:52:34,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:52:34,686 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 242 [2022-11-16 11:52:34,698 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 242 transitions, 492 flow. Second operand has 2 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 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) [2022-11-16 11:52:34,698 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:34,698 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 242 [2022-11-16 11:52:34,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:34,862 INFO L130 PetriNetUnfolder]: 3/300 cut-off events. [2022-11-16 11:52:34,862 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 11:52:34,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 300 events. 3/300 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 653 event pairs, 0 based on Foata normal form. 42/310 useless extension candidates. Maximal degree in co-relation 169. Up to 4 conditions per place. [2022-11-16 11:52:34,870 INFO L137 encePairwiseOnDemand]: 215/242 looper letters, 2 selfloop transitions, 0 changer transitions 0/211 dead transitions. [2022-11-16 11:52:34,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 211 transitions, 434 flow [2022-11-16 11:52:34,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:52:34,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:52:34,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 447 transitions. [2022-11-16 11:52:34,893 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9235537190082644 [2022-11-16 11:52:34,894 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 447 transitions. [2022-11-16 11:52:34,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 447 transitions. [2022-11-16 11:52:34,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:34,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 447 transitions. [2022-11-16 11:52:34,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 223.5) internal successors, (447), 2 states have internal predecessors, (447), 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) [2022-11-16 11:52:34,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 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) [2022-11-16 11:52:34,918 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 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) [2022-11-16 11:52:34,921 INFO L175 Difference]: Start difference. First operand has 216 places, 242 transitions, 492 flow. Second operand 2 states and 447 transitions. [2022-11-16 11:52:34,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 211 transitions, 434 flow [2022-11-16 11:52:34,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 211 transitions, 434 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:52:34,935 INFO L231 Difference]: Finished difference. Result has 213 places, 211 transitions, 430 flow [2022-11-16 11:52:34,937 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=430, PETRI_PLACES=213, PETRI_TRANSITIONS=211} [2022-11-16 11:52:34,943 INFO L288 CegarLoopForPetriNet]: 216 programPoint places, -3 predicate places. [2022-11-16 11:52:34,943 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 211 transitions, 430 flow [2022-11-16 11:52:34,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 209.5) internal successors, (419), 2 states have internal predecessors, (419), 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) [2022-11-16 11:52:34,945 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:34,945 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:34,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:52:34,946 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-16 11:52:34,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:34,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1941911223, now seen corresponding path program 1 times [2022-11-16 11:52:34,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:34,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424273115] [2022-11-16 11:52:34,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:34,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:35,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:35,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:35,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424273115] [2022-11-16 11:52:35,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424273115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:35,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:35,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:52:35,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709176197] [2022-11-16 11:52:35,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:35,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:52:35,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:35,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:52:35,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:52:35,187 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 202 out of 242 [2022-11-16 11:52:35,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 211 transitions, 430 flow. Second operand has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 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) [2022-11-16 11:52:35,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:35,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 202 of 242 [2022-11-16 11:52:35,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:35,280 INFO L130 PetriNetUnfolder]: 1/230 cut-off events. [2022-11-16 11:52:35,281 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 11:52:35,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 230 events. 1/230 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 258 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 245. Up to 7 conditions per place. [2022-11-16 11:52:35,283 INFO L137 encePairwiseOnDemand]: 239/242 looper letters, 9 selfloop transitions, 2 changer transitions 0/213 dead transitions. [2022-11-16 11:52:35,283 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 213 transitions, 456 flow [2022-11-16 11:52:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:52:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:52:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 618 transitions. [2022-11-16 11:52:35,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8512396694214877 [2022-11-16 11:52:35,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 618 transitions. [2022-11-16 11:52:35,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 618 transitions. [2022-11-16 11:52:35,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:35,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 618 transitions. [2022-11-16 11:52:35,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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) [2022-11-16 11:52:35,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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) [2022-11-16 11:52:35,294 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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) [2022-11-16 11:52:35,294 INFO L175 Difference]: Start difference. First operand has 213 places, 211 transitions, 430 flow. Second operand 3 states and 618 transitions. [2022-11-16 11:52:35,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 213 transitions, 456 flow [2022-11-16 11:52:35,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 213 transitions, 456 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:52:35,300 INFO L231 Difference]: Finished difference. Result has 216 places, 211 transitions, 438 flow [2022-11-16 11:52:35,300 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=216, PETRI_TRANSITIONS=211} [2022-11-16 11:52:35,301 INFO L288 CegarLoopForPetriNet]: 216 programPoint places, 0 predicate places. [2022-11-16 11:52:35,301 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 211 transitions, 438 flow [2022-11-16 11:52:35,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 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) [2022-11-16 11:52:35,302 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:35,302 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:35,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:52:35,303 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-16 11:52:35,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:35,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1133381007, now seen corresponding path program 1 times [2022-11-16 11:52:35,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:35,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021961446] [2022-11-16 11:52:35,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:35,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:35,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:35,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021961446] [2022-11-16 11:52:35,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021961446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:35,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:35,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:52:35,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940906946] [2022-11-16 11:52:35,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:35,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:52:35,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:35,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:52:35,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:52:35,380 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 242 [2022-11-16 11:52:35,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 211 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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) [2022-11-16 11:52:35,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:35,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 242 [2022-11-16 11:52:35,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:35,744 INFO L130 PetriNetUnfolder]: 109/1513 cut-off events. [2022-11-16 11:52:35,745 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-16 11:52:35,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1766 conditions, 1513 events. 109/1513 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10031 event pairs, 28 based on Foata normal form. 0/1326 useless extension candidates. Maximal degree in co-relation 1760. Up to 161 conditions per place. [2022-11-16 11:52:35,755 INFO L137 encePairwiseOnDemand]: 227/242 looper letters, 24 selfloop transitions, 10 changer transitions 0/222 dead transitions. [2022-11-16 11:52:35,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 222 transitions, 531 flow [2022-11-16 11:52:35,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:52:35,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:52:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 603 transitions. [2022-11-16 11:52:35,759 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8305785123966942 [2022-11-16 11:52:35,760 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 603 transitions. [2022-11-16 11:52:35,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 603 transitions. [2022-11-16 11:52:35,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:35,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 603 transitions. [2022-11-16 11:52:35,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 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) [2022-11-16 11:52:35,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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) [2022-11-16 11:52:35,790 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 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) [2022-11-16 11:52:35,791 INFO L175 Difference]: Start difference. First operand has 216 places, 211 transitions, 438 flow. Second operand 3 states and 603 transitions. [2022-11-16 11:52:35,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 222 transitions, 531 flow [2022-11-16 11:52:35,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 222 transitions, 527 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:52:35,796 INFO L231 Difference]: Finished difference. Result has 216 places, 217 transitions, 508 flow [2022-11-16 11:52:35,797 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=216, PETRI_TRANSITIONS=217} [2022-11-16 11:52:35,800 INFO L288 CegarLoopForPetriNet]: 216 programPoint places, 0 predicate places. [2022-11-16 11:52:35,800 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 217 transitions, 508 flow [2022-11-16 11:52:35,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 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) [2022-11-16 11:52:35,801 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:35,802 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:35,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:52:35,804 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2022-11-16 11:52:35,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:35,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1172480913, now seen corresponding path program 1 times [2022-11-16 11:52:35,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:35,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338192140] [2022-11-16 11:52:35,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:35,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:52:35,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:52:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:52:35,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:52:35,955 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:52:35,956 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2022-11-16 11:52:35,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-11-16 11:52:35,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-11-16 11:52:35,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-11-16 11:52:35,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-11-16 11:52:35,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-11-16 11:52:35,966 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-11-16 11:52:35,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-11-16 11:52:35,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-11-16 11:52:35,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-11-16 11:52:35,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-11-16 11:52:35,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-11-16 11:52:35,968 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-11-16 11:52:35,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-11-16 11:52:35,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-11-16 11:52:35,969 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-11-16 11:52:35,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-11-16 11:52:35,970 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-11-16 11:52:35,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-11-16 11:52:35,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-11-16 11:52:35,971 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-11-16 11:52:35,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-11-16 11:52:35,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:52:35,972 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-16 11:52:35,980 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 11:52:35,981 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-16 11:52:36,032 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:52:36,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 329 transitions, 676 flow [2022-11-16 11:52:36,136 INFO L130 PetriNetUnfolder]: 76/576 cut-off events. [2022-11-16 11:52:36,136 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 11:52:36,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 576 events. 76/576 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2956 event pairs, 0 based on Foata normal form. 0/464 useless extension candidates. Maximal degree in co-relation 352. Up to 9 conditions per place. [2022-11-16 11:52:36,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 329 transitions, 676 flow [2022-11-16 11:52:36,155 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 292 places, 329 transitions, 676 flow [2022-11-16 11:52:36,168 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:52:36,169 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=PETRI_NET, 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;@49071e65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:52:36,172 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-11-16 11:52:36,183 INFO L130 PetriNetUnfolder]: 2/64 cut-off events. [2022-11-16 11:52:36,183 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:52:36,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:36,184 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:36,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:52:36,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:36,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1437688120, now seen corresponding path program 1 times [2022-11-16 11:52:36,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:36,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229849976] [2022-11-16 11:52:36,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:36,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:36,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:36,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:36,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229849976] [2022-11-16 11:52:36,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229849976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:36,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:36,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:52:36,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124847994] [2022-11-16 11:52:36,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:36,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:52:36,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:36,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:52:36,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:52:36,258 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 329 [2022-11-16 11:52:36,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 329 transitions, 676 flow. Second operand has 2 states, 2 states have (on average 282.5) internal successors, (565), 2 states have internal predecessors, (565), 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) [2022-11-16 11:52:36,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:36,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 329 [2022-11-16 11:52:36,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:36,432 INFO L130 PetriNetUnfolder]: 6/494 cut-off events. [2022-11-16 11:52:36,432 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-16 11:52:36,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 494 events. 6/494 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1707 event pairs, 0 based on Foata normal form. 96/536 useless extension candidates. Maximal degree in co-relation 304. Up to 7 conditions per place. [2022-11-16 11:52:36,439 INFO L137 encePairwiseOnDemand]: 290/329 looper letters, 4 selfloop transitions, 0 changer transitions 0/286 dead transitions. [2022-11-16 11:52:36,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 286 transitions, 598 flow [2022-11-16 11:52:36,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:52:36,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:52:36,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 607 transitions. [2022-11-16 11:52:36,442 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9224924012158054 [2022-11-16 11:52:36,443 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 607 transitions. [2022-11-16 11:52:36,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 607 transitions. [2022-11-16 11:52:36,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:36,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 607 transitions. [2022-11-16 11:52:36,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 303.5) internal successors, (607), 2 states have internal predecessors, (607), 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) [2022-11-16 11:52:36,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 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) [2022-11-16 11:52:36,448 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 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) [2022-11-16 11:52:36,449 INFO L175 Difference]: Start difference. First operand has 292 places, 329 transitions, 676 flow. Second operand 2 states and 607 transitions. [2022-11-16 11:52:36,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 286 transitions, 598 flow [2022-11-16 11:52:36,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 286 transitions, 598 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:52:36,456 INFO L231 Difference]: Finished difference. Result has 289 places, 286 transitions, 590 flow [2022-11-16 11:52:36,457 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=590, PETRI_PLACES=289, PETRI_TRANSITIONS=286} [2022-11-16 11:52:36,460 INFO L288 CegarLoopForPetriNet]: 292 programPoint places, -3 predicate places. [2022-11-16 11:52:36,460 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 286 transitions, 590 flow [2022-11-16 11:52:36,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 282.5) internal successors, (565), 2 states have internal predecessors, (565), 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) [2022-11-16 11:52:36,461 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:36,461 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:36,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:52:36,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:52:36,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:36,462 INFO L85 PathProgramCache]: Analyzing trace with hash -550184439, now seen corresponding path program 1 times [2022-11-16 11:52:36,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:36,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365540174] [2022-11-16 11:52:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:36,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:36,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:36,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:36,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365540174] [2022-11-16 11:52:36,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365540174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:36,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:36,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:52:36,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900726089] [2022-11-16 11:52:36,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:36,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:52:36,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:36,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:52:36,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:52:36,578 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 329 [2022-11-16 11:52:36,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 286 transitions, 590 flow. Second operand has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 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) [2022-11-16 11:52:36,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:36,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 329 [2022-11-16 11:52:36,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:36,717 INFO L130 PetriNetUnfolder]: 4/424 cut-off events. [2022-11-16 11:52:36,717 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-16 11:52:36,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 424 events. 4/424 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1221 event pairs, 0 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 455. Up to 16 conditions per place. [2022-11-16 11:52:36,725 INFO L137 encePairwiseOnDemand]: 326/329 looper letters, 13 selfloop transitions, 2 changer transitions 0/290 dead transitions. [2022-11-16 11:52:36,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 290 transitions, 628 flow [2022-11-16 11:52:36,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:52:36,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:52:36,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 841 transitions. [2022-11-16 11:52:36,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8520770010131712 [2022-11-16 11:52:36,729 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 841 transitions. [2022-11-16 11:52:36,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 841 transitions. [2022-11-16 11:52:36,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:36,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 841 transitions. [2022-11-16 11:52:36,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.3333333333333) internal successors, (841), 3 states have internal predecessors, (841), 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) [2022-11-16 11:52:36,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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) [2022-11-16 11:52:36,736 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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) [2022-11-16 11:52:36,736 INFO L175 Difference]: Start difference. First operand has 289 places, 286 transitions, 590 flow. Second operand 3 states and 841 transitions. [2022-11-16 11:52:36,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 290 transitions, 628 flow [2022-11-16 11:52:36,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 290 transitions, 628 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:52:36,744 INFO L231 Difference]: Finished difference. Result has 292 places, 287 transitions, 602 flow [2022-11-16 11:52:36,745 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=602, PETRI_PLACES=292, PETRI_TRANSITIONS=287} [2022-11-16 11:52:36,750 INFO L288 CegarLoopForPetriNet]: 292 programPoint places, 0 predicate places. [2022-11-16 11:52:36,751 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 287 transitions, 602 flow [2022-11-16 11:52:36,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 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) [2022-11-16 11:52:36,752 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:36,752 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:36,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:52:36,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:52:36,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:36,753 INFO L85 PathProgramCache]: Analyzing trace with hash 515671300, now seen corresponding path program 1 times [2022-11-16 11:52:36,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:36,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580840132] [2022-11-16 11:52:36,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:36,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:36,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:36,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:36,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580840132] [2022-11-16 11:52:36,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580840132] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:36,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:36,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:52:36,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543327410] [2022-11-16 11:52:36,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:36,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:52:36,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:36,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:52:36,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:52:36,850 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 329 [2022-11-16 11:52:36,852 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 287 transitions, 602 flow. Second operand has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 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) [2022-11-16 11:52:36,852 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:36,852 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 329 [2022-11-16 11:52:36,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:41,786 INFO L130 PetriNetUnfolder]: 3952/26724 cut-off events. [2022-11-16 11:52:41,786 INFO L131 PetriNetUnfolder]: For 204/204 co-relation queries the response was YES. [2022-11-16 11:52:41,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33261 conditions, 26724 events. 3952/26724 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 353733 event pairs, 1419 based on Foata normal form. 0/22802 useless extension candidates. Maximal degree in co-relation 33254. Up to 3958 conditions per place. [2022-11-16 11:52:42,078 INFO L137 encePairwiseOnDemand]: 304/329 looper letters, 48 selfloop transitions, 18 changer transitions 0/316 dead transitions. [2022-11-16 11:52:42,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 316 transitions, 803 flow [2022-11-16 11:52:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:52:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:52:42,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2022-11-16 11:52:42,082 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8308004052684904 [2022-11-16 11:52:42,082 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2022-11-16 11:52:42,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2022-11-16 11:52:42,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:42,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2022-11-16 11:52:42,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 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) [2022-11-16 11:52:42,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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) [2022-11-16 11:52:42,090 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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) [2022-11-16 11:52:42,090 INFO L175 Difference]: Start difference. First operand has 292 places, 287 transitions, 602 flow. Second operand 3 states and 820 transitions. [2022-11-16 11:52:42,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 316 transitions, 803 flow [2022-11-16 11:52:42,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 316 transitions, 801 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:52:42,104 INFO L231 Difference]: Finished difference. Result has 295 places, 305 transitions, 758 flow [2022-11-16 11:52:42,104 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=758, PETRI_PLACES=295, PETRI_TRANSITIONS=305} [2022-11-16 11:52:42,107 INFO L288 CegarLoopForPetriNet]: 292 programPoint places, 3 predicate places. [2022-11-16 11:52:42,109 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 305 transitions, 758 flow [2022-11-16 11:52:42,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 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) [2022-11-16 11:52:42,110 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:42,110 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:42,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:52:42,111 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:52:42,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:42,112 INFO L85 PathProgramCache]: Analyzing trace with hash -368122561, now seen corresponding path program 1 times [2022-11-16 11:52:42,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:42,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805854621] [2022-11-16 11:52:42,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:42,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:42,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:42,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:42,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805854621] [2022-11-16 11:52:42,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805854621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:42,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:42,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:52:42,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677805560] [2022-11-16 11:52:42,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:42,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:52:42,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:42,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:52:42,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:52:42,210 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 329 [2022-11-16 11:52:42,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 305 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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) [2022-11-16 11:52:42,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:42,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 329 [2022-11-16 11:52:42,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:46,965 INFO L130 PetriNetUnfolder]: 4888/36330 cut-off events. [2022-11-16 11:52:46,965 INFO L131 PetriNetUnfolder]: For 6641/8951 co-relation queries the response was YES. [2022-11-16 11:52:47,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51793 conditions, 36330 events. 4888/36330 cut-off events. For 6641/8951 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 512642 event pairs, 2183 based on Foata normal form. 36/32128 useless extension candidates. Maximal degree in co-relation 51785. Up to 7039 conditions per place. [2022-11-16 11:52:47,232 INFO L137 encePairwiseOnDemand]: 318/329 looper letters, 76 selfloop transitions, 18 changer transitions 0/342 dead transitions. [2022-11-16 11:52:47,232 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 342 transitions, 1110 flow [2022-11-16 11:52:47,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:52:47,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:52:47,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 806 transitions. [2022-11-16 11:52:47,235 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8166160081053698 [2022-11-16 11:52:47,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 806 transitions. [2022-11-16 11:52:47,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 806 transitions. [2022-11-16 11:52:47,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:47,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 806 transitions. [2022-11-16 11:52:47,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.6666666666667) internal successors, (806), 3 states have internal predecessors, (806), 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) [2022-11-16 11:52:47,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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) [2022-11-16 11:52:47,243 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 329.0) internal successors, (1316), 4 states have internal predecessors, (1316), 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) [2022-11-16 11:52:47,243 INFO L175 Difference]: Start difference. First operand has 295 places, 305 transitions, 758 flow. Second operand 3 states and 806 transitions. [2022-11-16 11:52:47,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 342 transitions, 1110 flow [2022-11-16 11:52:47,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 342 transitions, 1050 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:52:47,271 INFO L231 Difference]: Finished difference. Result has 297 places, 321 transitions, 888 flow [2022-11-16 11:52:47,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=329, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=888, PETRI_PLACES=297, PETRI_TRANSITIONS=321} [2022-11-16 11:52:47,273 INFO L288 CegarLoopForPetriNet]: 292 programPoint places, 5 predicate places. [2022-11-16 11:52:47,273 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 321 transitions, 888 flow [2022-11-16 11:52:47,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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) [2022-11-16 11:52:47,275 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:47,276 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:47,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:52:47,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2022-11-16 11:52:47,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:47,277 INFO L85 PathProgramCache]: Analyzing trace with hash -184908326, now seen corresponding path program 1 times [2022-11-16 11:52:47,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:47,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651689700] [2022-11-16 11:52:47,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:47,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:52:47,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:52:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:52:47,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:52:47,334 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:52:47,334 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 30 remaining) [2022-11-16 11:52:47,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 30 remaining) [2022-11-16 11:52:47,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 30 remaining) [2022-11-16 11:52:47,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 30 remaining) [2022-11-16 11:52:47,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 30 remaining) [2022-11-16 11:52:47,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 30 remaining) [2022-11-16 11:52:47,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 30 remaining) [2022-11-16 11:52:47,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 30 remaining) [2022-11-16 11:52:47,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (21 of 30 remaining) [2022-11-16 11:52:47,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 30 remaining) [2022-11-16 11:52:47,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (19 of 30 remaining) [2022-11-16 11:52:47,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 30 remaining) [2022-11-16 11:52:47,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (17 of 30 remaining) [2022-11-16 11:52:47,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (16 of 30 remaining) [2022-11-16 11:52:47,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 30 remaining) [2022-11-16 11:52:47,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (14 of 30 remaining) [2022-11-16 11:52:47,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (13 of 30 remaining) [2022-11-16 11:52:47,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 30 remaining) [2022-11-16 11:52:47,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 30 remaining) [2022-11-16 11:52:47,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 30 remaining) [2022-11-16 11:52:47,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 30 remaining) [2022-11-16 11:52:47,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (8 of 30 remaining) [2022-11-16 11:52:47,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 30 remaining) [2022-11-16 11:52:47,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 30 remaining) [2022-11-16 11:52:47,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 30 remaining) [2022-11-16 11:52:47,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 30 remaining) [2022-11-16 11:52:47,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (3 of 30 remaining) [2022-11-16 11:52:47,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 30 remaining) [2022-11-16 11:52:47,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 30 remaining) [2022-11-16 11:52:47,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 30 remaining) [2022-11-16 11:52:47,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:52:47,343 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-16 11:52:47,345 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 11:52:47,345 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-16 11:52:47,402 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 11:52:47,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 368 places, 416 transitions, 862 flow [2022-11-16 11:52:47,627 INFO L130 PetriNetUnfolder]: 112/847 cut-off events. [2022-11-16 11:52:47,627 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-16 11:52:47,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 847 events. 112/847 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4575 event pairs, 1 based on Foata normal form. 0/683 useless extension candidates. Maximal degree in co-relation 584. Up to 16 conditions per place. [2022-11-16 11:52:47,650 INFO L82 GeneralOperation]: Start removeDead. Operand has 368 places, 416 transitions, 862 flow [2022-11-16 11:52:47,665 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 368 places, 416 transitions, 862 flow [2022-11-16 11:52:47,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:52:47,666 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=PETRI_NET, 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;@49071e65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:52:47,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-16 11:52:47,672 INFO L130 PetriNetUnfolder]: 2/64 cut-off events. [2022-11-16 11:52:47,673 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:52:47,673 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:47,673 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:47,673 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-11-16 11:52:47,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:47,674 INFO L85 PathProgramCache]: Analyzing trace with hash -683141432, now seen corresponding path program 1 times [2022-11-16 11:52:47,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:47,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344573921] [2022-11-16 11:52:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:47,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:47,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:47,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:47,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344573921] [2022-11-16 11:52:47,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344573921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:47,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:47,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:52:47,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421446699] [2022-11-16 11:52:47,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:47,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:52:47,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:47,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:52:47,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:52:47,708 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 355 out of 416 [2022-11-16 11:52:47,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 416 transitions, 862 flow. Second operand has 2 states, 2 states have (on average 355.5) internal successors, (711), 2 states have internal predecessors, (711), 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) [2022-11-16 11:52:47,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:47,710 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 355 of 416 [2022-11-16 11:52:47,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:47,941 INFO L130 PetriNetUnfolder]: 12/731 cut-off events. [2022-11-16 11:52:47,941 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-16 11:52:47,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 775 conditions, 731 events. 12/731 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 3058 event pairs, 1 based on Foata normal form. 216/867 useless extension candidates. Maximal degree in co-relation 508. Up to 16 conditions per place. [2022-11-16 11:52:47,956 INFO L137 encePairwiseOnDemand]: 365/416 looper letters, 6 selfloop transitions, 0 changer transitions 0/361 dead transitions. [2022-11-16 11:52:47,956 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 361 transitions, 764 flow [2022-11-16 11:52:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:52:47,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 11:52:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 767 transitions. [2022-11-16 11:52:47,959 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.921875 [2022-11-16 11:52:47,959 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 767 transitions. [2022-11-16 11:52:47,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 767 transitions. [2022-11-16 11:52:47,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:47,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 767 transitions. [2022-11-16 11:52:47,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 383.5) internal successors, (767), 2 states have internal predecessors, (767), 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) [2022-11-16 11:52:47,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 416.0) internal successors, (1248), 3 states have internal predecessors, (1248), 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) [2022-11-16 11:52:47,965 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 416.0) internal successors, (1248), 3 states have internal predecessors, (1248), 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) [2022-11-16 11:52:47,965 INFO L175 Difference]: Start difference. First operand has 368 places, 416 transitions, 862 flow. Second operand 2 states and 767 transitions. [2022-11-16 11:52:47,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 361 transitions, 764 flow [2022-11-16 11:52:47,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 361 transitions, 764 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:52:47,973 INFO L231 Difference]: Finished difference. Result has 365 places, 361 transitions, 752 flow [2022-11-16 11:52:47,974 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=752, PETRI_PLACES=365, PETRI_TRANSITIONS=361} [2022-11-16 11:52:47,976 INFO L288 CegarLoopForPetriNet]: 368 programPoint places, -3 predicate places. [2022-11-16 11:52:47,976 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 361 transitions, 752 flow [2022-11-16 11:52:47,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 355.5) internal successors, (711), 2 states have internal predecessors, (711), 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) [2022-11-16 11:52:47,977 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:47,977 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:47,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:52:47,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-11-16 11:52:47,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:47,978 INFO L85 PathProgramCache]: Analyzing trace with hash 204362249, now seen corresponding path program 1 times [2022-11-16 11:52:47,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:47,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678131510] [2022-11-16 11:52:47,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:47,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:48,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:48,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678131510] [2022-11-16 11:52:48,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678131510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:48,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:48,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:52:48,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513981821] [2022-11-16 11:52:48,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:48,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:52:48,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:48,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:52:48,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:52:48,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 416 [2022-11-16 11:52:48,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 361 transitions, 752 flow. Second operand has 3 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 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) [2022-11-16 11:52:48,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:48,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 416 [2022-11-16 11:52:48,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:52:48,273 INFO L130 PetriNetUnfolder]: 10/661 cut-off events. [2022-11-16 11:52:48,273 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-11-16 11:52:48,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 661 events. 10/661 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2559 event pairs, 1 based on Foata normal form. 0/591 useless extension candidates. Maximal degree in co-relation 719. Up to 30 conditions per place. [2022-11-16 11:52:48,288 INFO L137 encePairwiseOnDemand]: 413/416 looper letters, 15 selfloop transitions, 2 changer transitions 0/365 dead transitions. [2022-11-16 11:52:48,288 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 365 transitions, 794 flow [2022-11-16 11:52:48,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:52:48,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:52:48,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1062 transitions. [2022-11-16 11:52:48,292 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8509615384615384 [2022-11-16 11:52:48,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1062 transitions. [2022-11-16 11:52:48,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1062 transitions. [2022-11-16 11:52:48,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:52:48,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1062 transitions. [2022-11-16 11:52:48,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.0) internal successors, (1062), 3 states have internal predecessors, (1062), 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) [2022-11-16 11:52:48,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 416.0) internal successors, (1664), 4 states have internal predecessors, (1664), 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) [2022-11-16 11:52:48,300 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 416.0) internal successors, (1664), 4 states have internal predecessors, (1664), 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) [2022-11-16 11:52:48,300 INFO L175 Difference]: Start difference. First operand has 365 places, 361 transitions, 752 flow. Second operand 3 states and 1062 transitions. [2022-11-16 11:52:48,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 365 transitions, 794 flow [2022-11-16 11:52:48,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 365 transitions, 794 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:52:48,309 INFO L231 Difference]: Finished difference. Result has 368 places, 362 transitions, 764 flow [2022-11-16 11:52:48,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=416, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=764, PETRI_PLACES=368, PETRI_TRANSITIONS=362} [2022-11-16 11:52:48,310 INFO L288 CegarLoopForPetriNet]: 368 programPoint places, 0 predicate places. [2022-11-16 11:52:48,310 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 362 transitions, 764 flow [2022-11-16 11:52:48,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 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) [2022-11-16 11:52:48,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:52:48,311 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:52:48,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:52:48,312 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-11-16 11:52:48,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:52:48,312 INFO L85 PathProgramCache]: Analyzing trace with hash 959244633, now seen corresponding path program 1 times [2022-11-16 11:52:48,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:52:48,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205532938] [2022-11-16 11:52:48,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:52:48,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:52:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:52:48,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:52:48,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:52:48,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205532938] [2022-11-16 11:52:48,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205532938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:52:48,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:52:48,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:52:48,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817397677] [2022-11-16 11:52:48,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:52:48,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:52:48,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:52:48,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:52:48,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:52:48,376 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 416 [2022-11-16 11:52:48,377 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 362 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 311.0) internal successors, (933), 3 states have internal predecessors, (933), 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) [2022-11-16 11:52:48,377 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:52:48,378 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 416 [2022-11-16 11:52:48,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand