./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R --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 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 --- 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-38b53e6 [2022-11-25 18:24:38,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:24:38,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:24:38,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:24:38,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:24:38,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:24:38,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:24:38,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:24:38,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:24:38,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:24:38,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:24:38,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:24:38,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:24:38,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:24:38,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:24:38,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:24:38,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:24:38,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:24:38,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:24:38,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:24:38,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:24:38,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:24:38,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:24:38,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:24:38,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:24:38,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:24:38,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:24:38,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:24:38,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:24:38,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:24:38,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:24:38,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:24:38,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:24:38,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:24:38,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:24:38,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:24:38,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:24:38,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:24:38,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:24:38,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:24:38,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:24:38,935 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 18:24:38,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:24:38,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:24:38,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:24:38,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:24:38,981 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:24:38,981 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:24:38,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:24:38,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:24:38,982 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:24:38,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:24:38,983 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:24:38,983 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:24:38,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:24:38,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:24:38,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:24:38,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:24:38,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:24:38,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:24:38,985 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 18:24:38,985 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:24:38,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:24:38,988 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:24:38,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:24:38,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:24:38,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:24:38,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:24:38,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:24:38,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:24:38,991 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:24:38,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:24:38,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:24:38,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:24:38,992 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:24:38,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:24:38,992 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:24:38,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:24:38,993 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 [2022-11-25 18:24:39,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:24:39,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:24:39,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:24:39,410 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:24:39,411 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:24:39,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i [2022-11-25 18:24:43,095 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:24:43,513 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:24:43,514 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i [2022-11-25 18:24:43,539 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/data/178621edf/a13f3844b8d54968b493a1043a346175/FLAG20cc82422 [2022-11-25 18:24:43,564 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/data/178621edf/a13f3844b8d54968b493a1043a346175 [2022-11-25 18:24:43,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:24:43,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:24:43,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:24:43,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:24:43,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:24:43,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:43" (1/1) ... [2022-11-25 18:24:43,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bb478c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:43, skipping insertion in model container [2022-11-25 18:24:43,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:43" (1/1) ... [2022-11-25 18:24:43,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:24:43,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:24:44,136 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i[30176,30189] [2022-11-25 18:24:44,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:24:44,210 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:24:44,274 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i[30176,30189] [2022-11-25 18:24:44,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:24:44,354 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:24:44,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44 WrapperNode [2022-11-25 18:24:44,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:24:44,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:24:44,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:24:44,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:24:44,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,415 INFO L138 Inliner]: procedures = 170, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2022-11-25 18:24:44,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:24:44,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:24:44,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:24:44,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:24:44,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,460 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:24:44,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:24:44,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:24:44,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:24:44,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (1/1) ... [2022-11-25 18:24:44,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:24:44,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:24:44,525 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:24:44,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1d2ea54-0e0c-422d-a28d-1512ab99801c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:24:44,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:24:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:24:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 18:24:44,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:24:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:24:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 18:24:44,576 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 18:24:44,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:24:44,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:24:44,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:24:44,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:24:44,579 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:24:44,863 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:24:44,866 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:24:45,416 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:24:45,427 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:24:45,434 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-11-25 18:24:45,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:24:45 BoogieIcfgContainer [2022-11-25 18:24:45,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:24:45,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:24:45,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:24:45,448 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:24:45,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:24:43" (1/3) ... [2022-11-25 18:24:45,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413e3513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:24:45, skipping insertion in model container [2022-11-25 18:24:45,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:44" (2/3) ... [2022-11-25 18:24:45,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413e3513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:24:45, skipping insertion in model container [2022-11-25 18:24:45,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:24:45" (3/3) ... [2022-11-25 18:24:45,455 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_36-indirect_racefree.i [2022-11-25 18:24:45,466 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:24:45,481 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:24:45,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-25 18:24:45,482 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:24:45,647 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 18:24:45,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 178 transitions, 364 flow [2022-11-25 18:24:45,892 INFO L130 PetriNetUnfolder]: 17/230 cut-off events. [2022-11-25 18:24:45,892 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 18:24:45,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 230 events. 17/230 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 687 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 123. Up to 4 conditions per place. [2022-11-25 18:24:45,902 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 178 transitions, 364 flow [2022-11-25 18:24:45,909 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 178 transitions, 364 flow [2022-11-25 18:24:45,914 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:24:45,944 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 178 transitions, 364 flow [2022-11-25 18:24:45,947 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 178 transitions, 364 flow [2022-11-25 18:24:45,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 178 transitions, 364 flow [2022-11-25 18:24:46,017 INFO L130 PetriNetUnfolder]: 17/230 cut-off events. [2022-11-25 18:24:46,018 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 18:24:46,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 230 events. 17/230 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 687 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 123. Up to 4 conditions per place. [2022-11-25 18:24:46,027 INFO L119 LiptonReduction]: Number of co-enabled transitions 7656 [2022-11-25 18:24:53,524 INFO L134 LiptonReduction]: Checked pairs total: 49784 [2022-11-25 18:24:53,524 INFO L136 LiptonReduction]: Total number of compositions: 166 [2022-11-25 18:24:53,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:24:53,552 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;@45fe2fd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:24:53,552 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-11-25 18:24:53,554 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 18:24:53,555 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:24:53,555 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:24:53,556 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 18:24:53,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-11-25 18:24:53,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:53,563 INFO L85 PathProgramCache]: Analyzing trace with hash 648, now seen corresponding path program 1 times [2022-11-25 18:24:53,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:53,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583380920] [2022-11-25 18:24:53,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:53,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:53,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:53,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:53,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583380920] [2022-11-25 18:24:53,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583380920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:53,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:53,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 18:24:53,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316539948] [2022-11-25 18:24:53,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:53,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:24:53,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:53,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:24:53,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:24:53,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 344 [2022-11-25 18:24:53,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 73 transitions, 154 flow. Second operand has 2 states, 2 states have (on average 164.5) internal successors, (329), 2 states have internal predecessors, (329), 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) [2022-11-25 18:24:53,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:24:53,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 344 [2022-11-25 18:24:53,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:24:53,952 INFO L130 PetriNetUnfolder]: 161/587 cut-off events. [2022-11-25 18:24:53,952 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 18:24:53,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 587 events. 161/587 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2982 event pairs, 160 based on Foata normal form. 11/547 useless extension candidates. Maximal degree in co-relation 908. Up to 360 conditions per place. [2022-11-25 18:24:53,959 INFO L137 encePairwiseOnDemand]: 330/344 looper letters, 30 selfloop transitions, 0 changer transitions 0/59 dead transitions. [2022-11-25 18:24:53,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 59 transitions, 186 flow [2022-11-25 18:24:53,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:24:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:24:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 372 transitions. [2022-11-25 18:24:53,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5406976744186046 [2022-11-25 18:24:53,980 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 372 transitions. [2022-11-25 18:24:53,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 372 transitions. [2022-11-25 18:24:53,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:24:53,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 372 transitions. [2022-11-25 18:24:53,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 186.0) internal successors, (372), 2 states have internal predecessors, (372), 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) [2022-11-25 18:24:53,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 344.0) internal successors, (1032), 3 states have internal predecessors, (1032), 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) [2022-11-25 18:24:53,998 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 344.0) internal successors, (1032), 3 states have internal predecessors, (1032), 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) [2022-11-25 18:24:54,000 INFO L175 Difference]: Start difference. First operand has 67 places, 73 transitions, 154 flow. Second operand 2 states and 372 transitions. [2022-11-25 18:24:54,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 59 transitions, 186 flow [2022-11-25 18:24:54,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 59 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:24:54,008 INFO L231 Difference]: Finished difference. Result has 62 places, 59 transitions, 126 flow [2022-11-25 18:24:54,011 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=126, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2022-11-25 18:24:54,015 INFO L288 CegarLoopForPetriNet]: 67 programPoint places, -5 predicate places. [2022-11-25 18:24:54,016 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 126 flow [2022-11-25 18:24:54,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 164.5) internal successors, (329), 2 states have internal predecessors, (329), 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) [2022-11-25 18:24:54,016 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:24:54,017 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-25 18:24:54,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:24:54,018 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2022-11-25 18:24:54,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:54,019 INFO L85 PathProgramCache]: Analyzing trace with hash -2118803976, now seen corresponding path program 1 times [2022-11-25 18:24:54,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:54,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155518073] [2022-11-25 18:24:54,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:54,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:24:54,077 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:24:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:24:54,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:24:54,128 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:24:54,131 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2022-11-25 18:24:54,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2022-11-25 18:24:54,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2022-11-25 18:24:54,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2022-11-25 18:24:54,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2022-11-25 18:24:54,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2022-11-25 18:24:54,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2022-11-25 18:24:54,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2022-11-25 18:24:54,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2022-11-25 18:24:54,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2022-11-25 18:24:54,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2022-11-25 18:24:54,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 19 remaining) [2022-11-25 18:24:54,137 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2022-11-25 18:24:54,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2022-11-25 18:24:54,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2022-11-25 18:24:54,138 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2022-11-25 18:24:54,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2022-11-25 18:24:54,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2022-11-25 18:24:54,139 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2022-11-25 18:24:54,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:24:54,140 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 18:24:54,143 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 18:24:54,143 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 18:24:54,182 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 18:24:54,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 246 transitions, 510 flow [2022-11-25 18:24:54,273 INFO L130 PetriNetUnfolder]: 31/381 cut-off events. [2022-11-25 18:24:54,274 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 18:24:54,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 381 events. 31/381 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1480 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 232. Up to 8 conditions per place. [2022-11-25 18:24:54,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 246 transitions, 510 flow [2022-11-25 18:24:54,286 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 246 transitions, 510 flow [2022-11-25 18:24:54,286 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:24:54,287 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 246 transitions, 510 flow [2022-11-25 18:24:54,325 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 246 transitions, 510 flow [2022-11-25 18:24:54,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 246 transitions, 510 flow [2022-11-25 18:24:54,408 INFO L130 PetriNetUnfolder]: 31/381 cut-off events. [2022-11-25 18:24:54,409 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 18:24:54,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 381 events. 31/381 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1480 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 232. Up to 8 conditions per place. [2022-11-25 18:24:54,436 INFO L119 LiptonReduction]: Number of co-enabled transitions 25476 [2022-11-25 18:25:03,901 INFO L134 LiptonReduction]: Checked pairs total: 221017 [2022-11-25 18:25:03,901 INFO L136 LiptonReduction]: Total number of compositions: 218 [2022-11-25 18:25:03,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:25:03,912 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@45fe2fd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:25:03,916 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-25 18:25:03,917 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 18:25:03,918 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:25:03,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:25:03,919 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 18:25:03,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 18:25:03,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:03,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1169, now seen corresponding path program 1 times [2022-11-25 18:25:03,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:03,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776120911] [2022-11-25 18:25:03,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:03,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:03,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:03,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:03,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776120911] [2022-11-25 18:25:03,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776120911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:03,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:03,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 18:25:03,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050480277] [2022-11-25 18:25:03,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:03,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:25:03,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:03,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:25:03,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:25:03,970 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 464 [2022-11-25 18:25:03,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 122 transitions, 262 flow. Second operand has 2 states, 2 states have (on average 224.5) internal successors, (449), 2 states have internal predecessors, (449), 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) [2022-11-25 18:25:03,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:25:03,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 464 [2022-11-25 18:25:03,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:25:05,883 INFO L130 PetriNetUnfolder]: 4203/10148 cut-off events. [2022-11-25 18:25:05,883 INFO L131 PetriNetUnfolder]: For 84/84 co-relation queries the response was YES. [2022-11-25 18:25:05,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16925 conditions, 10148 events. 4203/10148 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 87937 event pairs, 4186 based on Foata normal form. 315/9625 useless extension candidates. Maximal degree in co-relation 13733. Up to 6689 conditions per place. [2022-11-25 18:25:05,967 INFO L137 encePairwiseOnDemand]: 442/464 looper letters, 43 selfloop transitions, 0 changer transitions 0/100 dead transitions. [2022-11-25 18:25:05,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 100 transitions, 304 flow [2022-11-25 18:25:05,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:25:05,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:25:05,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 513 transitions. [2022-11-25 18:25:05,971 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.552801724137931 [2022-11-25 18:25:05,972 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 513 transitions. [2022-11-25 18:25:05,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 513 transitions. [2022-11-25 18:25:05,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:25:05,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 513 transitions. [2022-11-25 18:25:05,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 256.5) internal successors, (513), 2 states have internal predecessors, (513), 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) [2022-11-25 18:25:05,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 464.0) internal successors, (1392), 3 states have internal predecessors, (1392), 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) [2022-11-25 18:25:05,980 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 464.0) internal successors, (1392), 3 states have internal predecessors, (1392), 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) [2022-11-25 18:25:05,980 INFO L175 Difference]: Start difference. First operand has 111 places, 122 transitions, 262 flow. Second operand 2 states and 513 transitions. [2022-11-25 18:25:05,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 100 transitions, 304 flow [2022-11-25 18:25:05,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 100 transitions, 304 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:25:05,985 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 218 flow [2022-11-25 18:25:05,985 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=218, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2022-11-25 18:25:05,986 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, -7 predicate places. [2022-11-25 18:25:05,987 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 218 flow [2022-11-25 18:25:05,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 224.5) internal successors, (449), 2 states have internal predecessors, (449), 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) [2022-11-25 18:25:05,988 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:25:05,988 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:05,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:25:05,989 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 18:25:05,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:05,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1259853738, now seen corresponding path program 1 times [2022-11-25 18:25:05,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:05,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523650609] [2022-11-25 18:25:05,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:05,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:06,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:06,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:06,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523650609] [2022-11-25 18:25:06,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523650609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:06,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:06,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:25:06,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747460885] [2022-11-25 18:25:06,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:06,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:25:06,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:06,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:25:06,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:25:06,182 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 464 [2022-11-25 18:25:06,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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) [2022-11-25 18:25:06,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:25:06,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 464 [2022-11-25 18:25:06,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:25:07,869 INFO L130 PetriNetUnfolder]: 4202/10236 cut-off events. [2022-11-25 18:25:07,870 INFO L131 PetriNetUnfolder]: For 94/94 co-relation queries the response was YES. [2022-11-25 18:25:07,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17033 conditions, 10236 events. 4202/10236 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 91215 event pairs, 1946 based on Foata normal form. 0/9411 useless extension candidates. Maximal degree in co-relation 17028. Up to 6667 conditions per place. [2022-11-25 18:25:07,957 INFO L137 encePairwiseOnDemand]: 461/464 looper letters, 57 selfloop transitions, 2 changer transitions 0/116 dead transitions. [2022-11-25 18:25:07,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 116 transitions, 368 flow [2022-11-25 18:25:07,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:25:07,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:25:07,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 720 transitions. [2022-11-25 18:25:07,968 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2022-11-25 18:25:07,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 720 transitions. [2022-11-25 18:25:07,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 720 transitions. [2022-11-25 18:25:07,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:25:07,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 720 transitions. [2022-11-25 18:25:07,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 240.0) internal successors, (720), 3 states have internal predecessors, (720), 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) [2022-11-25 18:25:07,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 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) [2022-11-25 18:25:07,978 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 464.0) internal successors, (1856), 4 states have internal predecessors, (1856), 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) [2022-11-25 18:25:07,979 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 218 flow. Second operand 3 states and 720 transitions. [2022-11-25 18:25:07,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 116 transitions, 368 flow [2022-11-25 18:25:07,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 116 transitions, 368 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:25:07,989 INFO L231 Difference]: Finished difference. Result has 107 places, 101 transitions, 230 flow [2022-11-25 18:25:07,989 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=107, PETRI_TRANSITIONS=101} [2022-11-25 18:25:07,993 INFO L288 CegarLoopForPetriNet]: 111 programPoint places, -4 predicate places. [2022-11-25 18:25:07,993 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 101 transitions, 230 flow [2022-11-25 18:25:07,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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) [2022-11-25 18:25:07,994 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:25:07,994 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 18:25:07,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:25:07,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-25 18:25:07,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:07,996 INFO L85 PathProgramCache]: Analyzing trace with hash -483255459, now seen corresponding path program 1 times [2022-11-25 18:25:07,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:07,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068632355] [2022-11-25 18:25:07,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:07,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:25:08,059 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:25:08,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:25:08,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:25:08,100 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:25:08,154 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2022-11-25 18:25:08,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2022-11-25 18:25:08,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2022-11-25 18:25:08,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2022-11-25 18:25:08,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2022-11-25 18:25:08,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2022-11-25 18:25:08,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2022-11-25 18:25:08,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2022-11-25 18:25:08,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2022-11-25 18:25:08,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2022-11-25 18:25:08,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2022-11-25 18:25:08,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2022-11-25 18:25:08,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2022-11-25 18:25:08,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2022-11-25 18:25:08,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2022-11-25 18:25:08,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2022-11-25 18:25:08,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2022-11-25 18:25:08,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2022-11-25 18:25:08,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2022-11-25 18:25:08,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2022-11-25 18:25:08,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2022-11-25 18:25:08,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2022-11-25 18:25:08,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2022-11-25 18:25:08,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2022-11-25 18:25:08,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2022-11-25 18:25:08,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:25:08,160 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 18:25:08,161 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 18:25:08,161 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-25 18:25:08,216 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 18:25:08,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 314 transitions, 658 flow [2022-11-25 18:25:08,415 INFO L130 PetriNetUnfolder]: 50/577 cut-off events. [2022-11-25 18:25:08,416 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-25 18:25:08,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 577 events. 50/577 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2519 event pairs, 1 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 389. Up to 16 conditions per place. [2022-11-25 18:25:08,429 INFO L82 GeneralOperation]: Start removeDead. Operand has 295 places, 314 transitions, 658 flow [2022-11-25 18:25:08,437 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 295 places, 314 transitions, 658 flow [2022-11-25 18:25:08,438 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:25:08,438 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 295 places, 314 transitions, 658 flow [2022-11-25 18:25:08,439 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 295 places, 314 transitions, 658 flow [2022-11-25 18:25:08,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 295 places, 314 transitions, 658 flow [2022-11-25 18:25:08,621 INFO L130 PetriNetUnfolder]: 50/577 cut-off events. [2022-11-25 18:25:08,622 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-25 18:25:08,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 577 events. 50/577 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2519 event pairs, 1 based on Foata normal form. 0/486 useless extension candidates. Maximal degree in co-relation 389. Up to 16 conditions per place. [2022-11-25 18:25:08,672 INFO L119 LiptonReduction]: Number of co-enabled transitions 51876 [2022-11-25 18:25:19,750 INFO L134 LiptonReduction]: Checked pairs total: 511697 [2022-11-25 18:25:19,750 INFO L136 LiptonReduction]: Total number of compositions: 281 [2022-11-25 18:25:19,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:25:19,754 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;@45fe2fd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:25:19,754 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-25 18:25:19,755 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 18:25:19,756 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:25:19,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:25:19,756 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 18:25:19,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-25 18:25:19,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:19,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1804, now seen corresponding path program 1 times [2022-11-25 18:25:19,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:19,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222011918] [2022-11-25 18:25:19,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:19,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:19,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:19,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:19,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222011918] [2022-11-25 18:25:19,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222011918] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:19,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:19,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 18:25:19,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627223895] [2022-11-25 18:25:19,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:19,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:25:19,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:19,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:25:19,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:25:19,770 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 595 [2022-11-25 18:25:19,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 167 transitions, 364 flow. Second operand has 2 states, 2 states have (on average 284.5) internal successors, (569), 2 states have internal predecessors, (569), 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) [2022-11-25 18:25:19,771 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:25:19,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 595 [2022-11-25 18:25:19,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:25:47,883 INFO L130 PetriNetUnfolder]: 109544/203679 cut-off events. [2022-11-25 18:25:47,884 INFO L131 PetriNetUnfolder]: For 2497/2497 co-relation queries the response was YES. [2022-11-25 18:25:48,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356924 conditions, 203679 events. 109544/203679 cut-off events. For 2497/2497 co-relation queries the response was YES. Maximal size of possible extension queue 3861. Compared 2207797 event pairs, 109271 based on Foata normal form. 8045/198361 useless extension candidates. Maximal degree in co-relation 211567. Up to 151481 conditions per place. [2022-11-25 18:25:49,816 INFO L137 encePairwiseOnDemand]: 565/595 looper letters, 60 selfloop transitions, 0 changer transitions 0/137 dead transitions. [2022-11-25 18:25:49,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 137 transitions, 424 flow [2022-11-25 18:25:49,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:25:49,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:25:49,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 658 transitions. [2022-11-25 18:25:49,819 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5529411764705883 [2022-11-25 18:25:49,820 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 658 transitions. [2022-11-25 18:25:49,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 658 transitions. [2022-11-25 18:25:49,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:25:49,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 658 transitions. [2022-11-25 18:25:49,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 329.0) internal successors, (658), 2 states have internal predecessors, (658), 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) [2022-11-25 18:25:49,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 595.0) internal successors, (1785), 3 states have internal predecessors, (1785), 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) [2022-11-25 18:25:49,830 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 595.0) internal successors, (1785), 3 states have internal predecessors, (1785), 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) [2022-11-25 18:25:49,831 INFO L175 Difference]: Start difference. First operand has 151 places, 167 transitions, 364 flow. Second operand 2 states and 658 transitions. [2022-11-25 18:25:49,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 137 transitions, 424 flow [2022-11-25 18:25:49,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 137 transitions, 424 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:25:49,847 INFO L231 Difference]: Finished difference. Result has 142 places, 137 transitions, 304 flow [2022-11-25 18:25:49,848 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=595, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=304, PETRI_PLACES=142, PETRI_TRANSITIONS=137} [2022-11-25 18:25:49,849 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, -9 predicate places. [2022-11-25 18:25:49,849 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 137 transitions, 304 flow [2022-11-25 18:25:49,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 284.5) internal successors, (569), 2 states have internal predecessors, (569), 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) [2022-11-25 18:25:49,850 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:25:49,851 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:49,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:25:49,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-25 18:25:49,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:49,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1887408, now seen corresponding path program 1 times [2022-11-25 18:25:49,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:49,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777655769] [2022-11-25 18:25:49,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:49,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:49,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:49,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:49,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777655769] [2022-11-25 18:25:49,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777655769] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:49,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:49,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:25:49,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025035978] [2022-11-25 18:25:49,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:49,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:25:49,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:49,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:25:49,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:25:49,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 595 [2022-11-25 18:25:49,934 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 137 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 3 states have internal predecessors, (844), 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) [2022-11-25 18:25:49,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:25:49,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 595 [2022-11-25 18:25:49,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand