./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc --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 761ee9f18ea63f4f821d50962d6c2d771ad2410f7c5dd57f48ec51463a1d5307 --- 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-5e519f3 [2022-11-02 19:48:38,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 19:48:38,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 19:48:38,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 19:48:38,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 19:48:38,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 19:48:38,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 19:48:38,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 19:48:38,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 19:48:38,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 19:48:38,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 19:48:38,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 19:48:38,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 19:48:38,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 19:48:38,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 19:48:38,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 19:48:38,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 19:48:38,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 19:48:38,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 19:48:38,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 19:48:38,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 19:48:38,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 19:48:38,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 19:48:38,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 19:48:38,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 19:48:38,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 19:48:38,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 19:48:38,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 19:48:38,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 19:48:38,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 19:48:38,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 19:48:38,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 19:48:38,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 19:48:38,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 19:48:38,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 19:48:38,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 19:48:38,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 19:48:38,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 19:48:38,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 19:48:38,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 19:48:38,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 19:48:38,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 19:48:38,363 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 19:48:38,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 19:48:38,363 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 19:48:38,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 19:48:38,364 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 19:48:38,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 19:48:38,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 19:48:38,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 19:48:38,366 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 19:48:38,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 19:48:38,366 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 19:48:38,366 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 19:48:38,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 19:48:38,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 19:48:38,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 19:48:38,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 19:48:38,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 19:48:38,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 19:48:38,368 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 19:48:38,368 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 19:48:38,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 19:48:38,368 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 19:48:38,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 19:48:38,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 19:48:38,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 19:48:38,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 19:48:38,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:48:38,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 19:48:38,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 19:48:38,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 19:48:38,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 19:48:38,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 19:48:38,371 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 19:48:38,371 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 19:48:38,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 19:48:38,372 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_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 761ee9f18ea63f4f821d50962d6c2d771ad2410f7c5dd57f48ec51463a1d5307 [2022-11-02 19:48:38,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 19:48:38,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 19:48:38,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 19:48:38,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 19:48:38,641 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 19:48:38,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2022-11-02 19:48:38,740 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/data/4815aecff/cdb3cd4c84ea4cecb235f00eeb8317bb/FLAG3a71dc10b [2022-11-02 19:48:39,292 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 19:48:39,294 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2022-11-02 19:48:39,303 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/data/4815aecff/cdb3cd4c84ea4cecb235f00eeb8317bb/FLAG3a71dc10b [2022-11-02 19:48:39,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/data/4815aecff/cdb3cd4c84ea4cecb235f00eeb8317bb [2022-11-02 19:48:39,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 19:48:39,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 19:48:39,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 19:48:39,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 19:48:39,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 19:48:39,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:48:39" (1/1) ... [2022-11-02 19:48:39,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fbed0b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:39, skipping insertion in model container [2022-11-02 19:48:39,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:48:39" (1/1) ... [2022-11-02 19:48:39,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 19:48:39,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 19:48:40,022 WARN L230 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_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c[2575,2588] [2022-11-02 19:48:40,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:48:40,034 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 19:48:40,062 WARN L230 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_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c[2575,2588] [2022-11-02 19:48:40,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:48:40,088 INFO L208 MainTranslator]: Completed translation [2022-11-02 19:48:40,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40 WrapperNode [2022-11-02 19:48:40,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 19:48:40,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 19:48:40,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 19:48:40,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 19:48:40,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (1/1) ... [2022-11-02 19:48:40,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (1/1) ... [2022-11-02 19:48:40,166 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 274 [2022-11-02 19:48:40,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 19:48:40,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 19:48:40,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 19:48:40,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 19:48:40,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (1/1) ... [2022-11-02 19:48:40,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (1/1) ... [2022-11-02 19:48:40,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (1/1) ... [2022-11-02 19:48:40,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (1/1) ... [2022-11-02 19:48:40,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (1/1) ... [2022-11-02 19:48:40,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (1/1) ... [2022-11-02 19:48:40,225 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (1/1) ... [2022-11-02 19:48:40,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (1/1) ... [2022-11-02 19:48:40,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 19:48:40,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 19:48:40,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 19:48:40,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 19:48:40,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (1/1) ... [2022-11-02 19:48:40,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:48:40,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:48:40,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 19:48:40,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 19:48:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 19:48:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 19:48:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 19:48:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 19:48:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 19:48:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 19:48:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 19:48:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 19:48:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 19:48:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 19:48:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 19:48:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 19:48:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 19:48:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 19:48:40,320 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 19:48:40,460 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 19:48:40,468 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 19:48:41,036 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 19:48:41,049 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 19:48:41,049 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 19:48:41,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:48:41 BoogieIcfgContainer [2022-11-02 19:48:41,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 19:48:41,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 19:48:41,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 19:48:41,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 19:48:41,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 07:48:39" (1/3) ... [2022-11-02 19:48:41,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8e2ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:48:41, skipping insertion in model container [2022-11-02 19:48:41,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:48:40" (2/3) ... [2022-11-02 19:48:41,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c8e2ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:48:41, skipping insertion in model container [2022-11-02 19:48:41,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:48:41" (3/3) ... [2022-11-02 19:48:41,063 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-subst.wvr.c [2022-11-02 19:48:41,072 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 19:48:41,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 19:48:41,094 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-11-02 19:48:41,094 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 19:48:41,256 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 19:48:41,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 354 places, 362 transitions, 748 flow [2022-11-02 19:48:41,525 INFO L130 PetriNetUnfolder]: 18/359 cut-off events. [2022-11-02 19:48:41,525 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 19:48:41,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 359 events. 18/359 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 863 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 224. Up to 2 conditions per place. [2022-11-02 19:48:41,539 INFO L82 GeneralOperation]: Start removeDead. Operand has 354 places, 362 transitions, 748 flow [2022-11-02 19:48:41,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 330 places, 336 transitions, 690 flow [2022-11-02 19:48:41,574 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 19:48:41,585 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;@5c752c3f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 19:48:41,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-11-02 19:48:41,598 INFO L130 PetriNetUnfolder]: 0/29 cut-off events. [2022-11-02 19:48:41,599 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 19:48:41,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:41,599 INFO L208 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] [2022-11-02 19:48:41,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:41,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:41,605 INFO L85 PathProgramCache]: Analyzing trace with hash 477414099, now seen corresponding path program 1 times [2022-11-02 19:48:41,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:41,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700723990] [2022-11-02 19:48:41,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:41,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:41,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:41,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:41,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700723990] [2022-11-02 19:48:41,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700723990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:41,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:41,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:41,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399903114] [2022-11-02 19:48:41,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:41,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:41,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:41,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:41,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:41,845 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 362 [2022-11-02 19:48:41,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 336 transitions, 690 flow. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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) [2022-11-02 19:48:41,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:41,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 362 [2022-11-02 19:48:41,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:42,167 INFO L130 PetriNetUnfolder]: 78/997 cut-off events. [2022-11-02 19:48:42,168 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-11-02 19:48:42,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1136 conditions, 997 events. 78/997 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6298 event pairs, 39 based on Foata normal form. 37/851 useless extension candidates. Maximal degree in co-relation 924. Up to 85 conditions per place. [2022-11-02 19:48:42,189 INFO L137 encePairwiseOnDemand]: 352/362 looper letters, 15 selfloop transitions, 2 changer transitions 1/328 dead transitions. [2022-11-02 19:48:42,190 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 328 transitions, 708 flow [2022-11-02 19:48:42,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:42,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:42,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1030 transitions. [2022-11-02 19:48:42,216 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9484346224677717 [2022-11-02 19:48:42,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1030 transitions. [2022-11-02 19:48:42,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1030 transitions. [2022-11-02 19:48:42,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:42,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1030 transitions. [2022-11-02 19:48:42,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 343.3333333333333) internal successors, (1030), 3 states have internal predecessors, (1030), 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) [2022-11-02 19:48:42,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:42,242 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:42,243 INFO L175 Difference]: Start difference. First operand has 330 places, 336 transitions, 690 flow. Second operand 3 states and 1030 transitions. [2022-11-02 19:48:42,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 328 transitions, 708 flow [2022-11-02 19:48:42,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 328 transitions, 696 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 19:48:42,266 INFO L231 Difference]: Finished difference. Result has 325 places, 327 transitions, 664 flow [2022-11-02 19:48:42,268 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=664, PETRI_PLACES=325, PETRI_TRANSITIONS=327} [2022-11-02 19:48:42,274 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -5 predicate places. [2022-11-02 19:48:42,275 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 327 transitions, 664 flow [2022-11-02 19:48:42,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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) [2022-11-02 19:48:42,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:42,276 INFO L208 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] [2022-11-02 19:48:42,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 19:48:42,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:42,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:42,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1005563672, now seen corresponding path program 1 times [2022-11-02 19:48:42,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:42,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975786586] [2022-11-02 19:48:42,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:42,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:42,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:42,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:42,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975786586] [2022-11-02 19:48:42,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975786586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:42,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:42,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:42,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650200713] [2022-11-02 19:48:42,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:42,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:42,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:42,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:42,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:42,370 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 362 [2022-11-02 19:48:42,372 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 327 transitions, 664 flow. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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) [2022-11-02 19:48:42,372 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:42,372 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 362 [2022-11-02 19:48:42,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:42,658 INFO L130 PetriNetUnfolder]: 71/1243 cut-off events. [2022-11-02 19:48:42,658 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-02 19:48:42,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1360 conditions, 1243 events. 71/1243 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 8711 event pairs, 39 based on Foata normal form. 0/1063 useless extension candidates. Maximal degree in co-relation 1323. Up to 90 conditions per place. [2022-11-02 19:48:42,680 INFO L137 encePairwiseOnDemand]: 359/362 looper letters, 15 selfloop transitions, 2 changer transitions 0/326 dead transitions. [2022-11-02 19:48:42,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 326 transitions, 696 flow [2022-11-02 19:48:42,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:42,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:42,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1023 transitions. [2022-11-02 19:48:42,684 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9419889502762431 [2022-11-02 19:48:42,684 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1023 transitions. [2022-11-02 19:48:42,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1023 transitions. [2022-11-02 19:48:42,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:42,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1023 transitions. [2022-11-02 19:48:42,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 341.0) internal successors, (1023), 3 states have internal predecessors, (1023), 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) [2022-11-02 19:48:42,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:42,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:42,691 INFO L175 Difference]: Start difference. First operand has 325 places, 327 transitions, 664 flow. Second operand 3 states and 1023 transitions. [2022-11-02 19:48:42,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 326 transitions, 696 flow [2022-11-02 19:48:42,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 326 transitions, 692 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:48:42,702 INFO L231 Difference]: Finished difference. Result has 323 places, 326 transitions, 662 flow [2022-11-02 19:48:42,703 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=323, PETRI_TRANSITIONS=326} [2022-11-02 19:48:42,704 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -7 predicate places. [2022-11-02 19:48:42,704 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 326 transitions, 662 flow [2022-11-02 19:48:42,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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) [2022-11-02 19:48:42,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:42,706 INFO L208 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] [2022-11-02 19:48:42,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 19:48:42,708 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:42,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:42,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1952012066, now seen corresponding path program 1 times [2022-11-02 19:48:42,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:42,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996116748] [2022-11-02 19:48:42,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:42,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:42,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:42,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:42,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996116748] [2022-11-02 19:48:42,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996116748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:42,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:42,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:42,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786795261] [2022-11-02 19:48:42,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:42,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:42,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:42,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:42,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:42,825 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 362 [2022-11-02 19:48:42,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 326 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 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) [2022-11-02 19:48:42,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:42,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 362 [2022-11-02 19:48:42,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:43,085 INFO L130 PetriNetUnfolder]: 75/981 cut-off events. [2022-11-02 19:48:43,086 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-02 19:48:43,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1093 conditions, 981 events. 75/981 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5835 event pairs, 36 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 1049. Up to 91 conditions per place. [2022-11-02 19:48:43,110 INFO L137 encePairwiseOnDemand]: 359/362 looper letters, 18 selfloop transitions, 2 changer transitions 0/325 dead transitions. [2022-11-02 19:48:43,110 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 325 transitions, 700 flow [2022-11-02 19:48:43,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:43,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:43,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1017 transitions. [2022-11-02 19:48:43,115 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.93646408839779 [2022-11-02 19:48:43,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1017 transitions. [2022-11-02 19:48:43,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1017 transitions. [2022-11-02 19:48:43,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:43,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1017 transitions. [2022-11-02 19:48:43,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 339.0) internal successors, (1017), 3 states have internal predecessors, (1017), 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) [2022-11-02 19:48:43,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:43,124 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:43,124 INFO L175 Difference]: Start difference. First operand has 323 places, 326 transitions, 662 flow. Second operand 3 states and 1017 transitions. [2022-11-02 19:48:43,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 325 transitions, 700 flow [2022-11-02 19:48:43,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 325 transitions, 696 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:48:43,132 INFO L231 Difference]: Finished difference. Result has 322 places, 325 transitions, 660 flow [2022-11-02 19:48:43,132 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=322, PETRI_TRANSITIONS=325} [2022-11-02 19:48:43,135 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -8 predicate places. [2022-11-02 19:48:43,135 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 325 transitions, 660 flow [2022-11-02 19:48:43,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 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) [2022-11-02 19:48:43,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:43,137 INFO L208 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] [2022-11-02 19:48:43,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 19:48:43,137 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:43,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:43,138 INFO L85 PathProgramCache]: Analyzing trace with hash 544824004, now seen corresponding path program 1 times [2022-11-02 19:48:43,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:43,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573580644] [2022-11-02 19:48:43,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:43,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:43,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:43,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573580644] [2022-11-02 19:48:43,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573580644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:43,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:43,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:43,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395478382] [2022-11-02 19:48:43,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:43,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:43,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:43,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:43,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:43,265 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 362 [2022-11-02 19:48:43,267 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 325 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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) [2022-11-02 19:48:43,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:43,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 362 [2022-11-02 19:48:43,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:43,481 INFO L130 PetriNetUnfolder]: 41/786 cut-off events. [2022-11-02 19:48:43,482 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-11-02 19:48:43,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 864 conditions, 786 events. 41/786 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4080 event pairs, 21 based on Foata normal form. 0/678 useless extension candidates. Maximal degree in co-relation 813. Up to 63 conditions per place. [2022-11-02 19:48:43,501 INFO L137 encePairwiseOnDemand]: 359/362 looper letters, 15 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2022-11-02 19:48:43,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 324 transitions, 692 flow [2022-11-02 19:48:43,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:43,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1023 transitions. [2022-11-02 19:48:43,504 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9419889502762431 [2022-11-02 19:48:43,504 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1023 transitions. [2022-11-02 19:48:43,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1023 transitions. [2022-11-02 19:48:43,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:43,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1023 transitions. [2022-11-02 19:48:43,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 341.0) internal successors, (1023), 3 states have internal predecessors, (1023), 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) [2022-11-02 19:48:43,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:43,516 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:43,516 INFO L175 Difference]: Start difference. First operand has 322 places, 325 transitions, 660 flow. Second operand 3 states and 1023 transitions. [2022-11-02 19:48:43,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 324 transitions, 692 flow [2022-11-02 19:48:43,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 324 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:48:43,523 INFO L231 Difference]: Finished difference. Result has 321 places, 324 transitions, 658 flow [2022-11-02 19:48:43,523 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=321, PETRI_TRANSITIONS=324} [2022-11-02 19:48:43,530 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -9 predicate places. [2022-11-02 19:48:43,530 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 324 transitions, 658 flow [2022-11-02 19:48:43,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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) [2022-11-02 19:48:43,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:43,532 INFO L208 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, 1, 1] [2022-11-02 19:48:43,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 19:48:43,532 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:43,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:43,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2031445172, now seen corresponding path program 1 times [2022-11-02 19:48:43,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:43,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731962461] [2022-11-02 19:48:43,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:43,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:43,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:43,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:43,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731962461] [2022-11-02 19:48:43,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731962461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:43,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:43,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:43,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348414082] [2022-11-02 19:48:43,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:43,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:43,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:43,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:43,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:43,638 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 362 [2022-11-02 19:48:43,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 324 transitions, 658 flow. Second operand has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 3 states have internal predecessors, (991), 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) [2022-11-02 19:48:43,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:43,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 362 [2022-11-02 19:48:43,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:43,960 INFO L130 PetriNetUnfolder]: 195/1487 cut-off events. [2022-11-02 19:48:43,961 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-02 19:48:43,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1752 conditions, 1487 events. 195/1487 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 10988 event pairs, 132 based on Foata normal form. 0/1236 useless extension candidates. Maximal degree in co-relation 1694. Up to 250 conditions per place. [2022-11-02 19:48:43,995 INFO L137 encePairwiseOnDemand]: 359/362 looper letters, 21 selfloop transitions, 2 changer transitions 0/323 dead transitions. [2022-11-02 19:48:43,995 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 323 transitions, 702 flow [2022-11-02 19:48:43,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:43,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:43,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1011 transitions. [2022-11-02 19:48:43,998 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.930939226519337 [2022-11-02 19:48:43,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1011 transitions. [2022-11-02 19:48:43,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1011 transitions. [2022-11-02 19:48:43,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:43,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1011 transitions. [2022-11-02 19:48:44,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 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) [2022-11-02 19:48:44,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:44,006 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:44,007 INFO L175 Difference]: Start difference. First operand has 321 places, 324 transitions, 658 flow. Second operand 3 states and 1011 transitions. [2022-11-02 19:48:44,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 323 transitions, 702 flow [2022-11-02 19:48:44,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 323 transitions, 698 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:48:44,013 INFO L231 Difference]: Finished difference. Result has 320 places, 323 transitions, 656 flow [2022-11-02 19:48:44,014 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=320, PETRI_TRANSITIONS=323} [2022-11-02 19:48:44,017 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -10 predicate places. [2022-11-02 19:48:44,018 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 323 transitions, 656 flow [2022-11-02 19:48:44,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 330.3333333333333) internal successors, (991), 3 states have internal predecessors, (991), 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) [2022-11-02 19:48:44,019 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:44,019 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:44,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 19:48:44,020 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:44,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:44,021 INFO L85 PathProgramCache]: Analyzing trace with hash -760048961, now seen corresponding path program 1 times [2022-11-02 19:48:44,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:44,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690929311] [2022-11-02 19:48:44,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:44,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:44,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:44,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:44,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690929311] [2022-11-02 19:48:44,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690929311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:44,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:44,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:44,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975527785] [2022-11-02 19:48:44,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:44,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:44,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:44,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:44,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:44,127 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 362 [2022-11-02 19:48:44,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 323 transitions, 656 flow. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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) [2022-11-02 19:48:44,129 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:44,129 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 362 [2022-11-02 19:48:44,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:44,332 INFO L130 PetriNetUnfolder]: 56/853 cut-off events. [2022-11-02 19:48:44,332 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-02 19:48:44,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 853 events. 56/853 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4562 event pairs, 39 based on Foata normal form. 0/747 useless extension candidates. Maximal degree in co-relation 890. Up to 90 conditions per place. [2022-11-02 19:48:44,348 INFO L137 encePairwiseOnDemand]: 359/362 looper letters, 15 selfloop transitions, 2 changer transitions 0/322 dead transitions. [2022-11-02 19:48:44,348 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 322 transitions, 688 flow [2022-11-02 19:48:44,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:44,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:44,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1023 transitions. [2022-11-02 19:48:44,351 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9419889502762431 [2022-11-02 19:48:44,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1023 transitions. [2022-11-02 19:48:44,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1023 transitions. [2022-11-02 19:48:44,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:44,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1023 transitions. [2022-11-02 19:48:44,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 341.0) internal successors, (1023), 3 states have internal predecessors, (1023), 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) [2022-11-02 19:48:44,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:44,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:44,358 INFO L175 Difference]: Start difference. First operand has 320 places, 323 transitions, 656 flow. Second operand 3 states and 1023 transitions. [2022-11-02 19:48:44,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 322 transitions, 688 flow [2022-11-02 19:48:44,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 322 transitions, 684 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:48:44,369 INFO L231 Difference]: Finished difference. Result has 319 places, 322 transitions, 654 flow [2022-11-02 19:48:44,370 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=319, PETRI_TRANSITIONS=322} [2022-11-02 19:48:44,372 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -11 predicate places. [2022-11-02 19:48:44,373 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 322 transitions, 654 flow [2022-11-02 19:48:44,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 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) [2022-11-02 19:48:44,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:44,374 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:44,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 19:48:44,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:44,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:44,375 INFO L85 PathProgramCache]: Analyzing trace with hash 575091526, now seen corresponding path program 1 times [2022-11-02 19:48:44,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:44,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589833336] [2022-11-02 19:48:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:44,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:44,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:44,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:44,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:44,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589833336] [2022-11-02 19:48:44,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589833336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:44,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:44,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:44,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570895288] [2022-11-02 19:48:44,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:44,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:44,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:44,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:44,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:44,448 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 362 [2022-11-02 19:48:44,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 322 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 339.6666666666667) internal successors, (1019), 3 states have internal predecessors, (1019), 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) [2022-11-02 19:48:44,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:44,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 362 [2022-11-02 19:48:44,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:44,637 INFO L130 PetriNetUnfolder]: 53/836 cut-off events. [2022-11-02 19:48:44,637 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 19:48:44,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 902 conditions, 836 events. 53/836 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 4802 event pairs, 6 based on Foata normal form. 0/708 useless extension candidates. Maximal degree in co-relation 829. Up to 43 conditions per place. [2022-11-02 19:48:44,650 INFO L137 encePairwiseOnDemand]: 358/362 looper letters, 14 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2022-11-02 19:48:44,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 324 transitions, 692 flow [2022-11-02 19:48:44,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:44,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:44,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1032 transitions. [2022-11-02 19:48:44,653 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9502762430939227 [2022-11-02 19:48:44,653 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1032 transitions. [2022-11-02 19:48:44,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1032 transitions. [2022-11-02 19:48:44,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:44,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1032 transitions. [2022-11-02 19:48:44,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2022-11-02 19:48:44,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:44,659 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:44,659 INFO L175 Difference]: Start difference. First operand has 319 places, 322 transitions, 654 flow. Second operand 3 states and 1032 transitions. [2022-11-02 19:48:44,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 324 transitions, 692 flow [2022-11-02 19:48:44,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 324 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:48:44,666 INFO L231 Difference]: Finished difference. Result has 318 places, 322 transitions, 660 flow [2022-11-02 19:48:44,666 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=318, PETRI_TRANSITIONS=322} [2022-11-02 19:48:44,667 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -12 predicate places. [2022-11-02 19:48:44,667 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 322 transitions, 660 flow [2022-11-02 19:48:44,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.6666666666667) internal successors, (1019), 3 states have internal predecessors, (1019), 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) [2022-11-02 19:48:44,668 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:44,668 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:44,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 19:48:44,668 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:44,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:44,669 INFO L85 PathProgramCache]: Analyzing trace with hash -72070407, now seen corresponding path program 1 times [2022-11-02 19:48:44,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:44,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690506892] [2022-11-02 19:48:44,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:44,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:44,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:44,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690506892] [2022-11-02 19:48:44,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690506892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:44,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:44,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:44,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639825279] [2022-11-02 19:48:44,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:44,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:44,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:44,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:44,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:44,720 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 362 [2022-11-02 19:48:44,722 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 322 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 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) [2022-11-02 19:48:44,722 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:44,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 362 [2022-11-02 19:48:44,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:44,904 INFO L130 PetriNetUnfolder]: 57/884 cut-off events. [2022-11-02 19:48:44,904 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-02 19:48:44,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 884 events. 57/884 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4956 event pairs, 8 based on Foata normal form. 0/757 useless extension candidates. Maximal degree in co-relation 812. Up to 49 conditions per place. [2022-11-02 19:48:44,934 INFO L137 encePairwiseOnDemand]: 356/362 looper letters, 16 selfloop transitions, 3 changer transitions 0/324 dead transitions. [2022-11-02 19:48:44,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 324 transitions, 704 flow [2022-11-02 19:48:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:44,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:44,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1027 transitions. [2022-11-02 19:48:44,937 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9456721915285451 [2022-11-02 19:48:44,937 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1027 transitions. [2022-11-02 19:48:44,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1027 transitions. [2022-11-02 19:48:44,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:44,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1027 transitions. [2022-11-02 19:48:44,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 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) [2022-11-02 19:48:44,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:44,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:44,943 INFO L175 Difference]: Start difference. First operand has 318 places, 322 transitions, 660 flow. Second operand 3 states and 1027 transitions. [2022-11-02 19:48:44,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 324 transitions, 704 flow [2022-11-02 19:48:44,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 324 transitions, 704 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 19:48:44,950 INFO L231 Difference]: Finished difference. Result has 318 places, 322 transitions, 675 flow [2022-11-02 19:48:44,951 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=675, PETRI_PLACES=318, PETRI_TRANSITIONS=322} [2022-11-02 19:48:44,951 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -12 predicate places. [2022-11-02 19:48:44,951 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 322 transitions, 675 flow [2022-11-02 19:48:44,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.6666666666667) internal successors, (1010), 3 states have internal predecessors, (1010), 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) [2022-11-02 19:48:44,952 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:44,952 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:44,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 19:48:44,953 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:44,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:44,953 INFO L85 PathProgramCache]: Analyzing trace with hash 464598576, now seen corresponding path program 1 times [2022-11-02 19:48:44,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:44,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375359602] [2022-11-02 19:48:44,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:44,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:44,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:44,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:44,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375359602] [2022-11-02 19:48:44,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375359602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:44,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:44,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:44,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511357726] [2022-11-02 19:48:44,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:44,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:44,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:44,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:44,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:44,995 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 362 [2022-11-02 19:48:44,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 322 transitions, 675 flow. Second operand has 3 states, 3 states have (on average 339.6666666666667) internal successors, (1019), 3 states have internal predecessors, (1019), 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) [2022-11-02 19:48:44,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:44,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 362 [2022-11-02 19:48:44,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:45,225 INFO L130 PetriNetUnfolder]: 44/1038 cut-off events. [2022-11-02 19:48:45,225 INFO L131 PetriNetUnfolder]: For 11/16 co-relation queries the response was YES. [2022-11-02 19:48:45,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1038 events. 44/1038 cut-off events. For 11/16 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6385 event pairs, 4 based on Foata normal form. 1/922 useless extension candidates. Maximal degree in co-relation 922. Up to 53 conditions per place. [2022-11-02 19:48:45,248 INFO L137 encePairwiseOnDemand]: 358/362 looper letters, 17 selfloop transitions, 2 changer transitions 0/327 dead transitions. [2022-11-02 19:48:45,248 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 327 transitions, 728 flow [2022-11-02 19:48:45,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:45,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:45,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1035 transitions. [2022-11-02 19:48:45,251 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9530386740331491 [2022-11-02 19:48:45,251 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1035 transitions. [2022-11-02 19:48:45,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1035 transitions. [2022-11-02 19:48:45,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:45,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1035 transitions. [2022-11-02 19:48:45,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 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) [2022-11-02 19:48:45,293 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:45,294 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:45,294 INFO L175 Difference]: Start difference. First operand has 318 places, 322 transitions, 675 flow. Second operand 3 states and 1035 transitions. [2022-11-02 19:48:45,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 327 transitions, 728 flow [2022-11-02 19:48:45,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 327 transitions, 728 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 19:48:45,302 INFO L231 Difference]: Finished difference. Result has 319 places, 322 transitions, 685 flow [2022-11-02 19:48:45,303 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=319, PETRI_TRANSITIONS=322} [2022-11-02 19:48:45,303 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -11 predicate places. [2022-11-02 19:48:45,304 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 322 transitions, 685 flow [2022-11-02 19:48:45,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.6666666666667) internal successors, (1019), 3 states have internal predecessors, (1019), 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) [2022-11-02 19:48:45,305 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:45,305 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:45,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 19:48:45,305 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:45,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:45,306 INFO L85 PathProgramCache]: Analyzing trace with hash -197340077, now seen corresponding path program 1 times [2022-11-02 19:48:45,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:45,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127631844] [2022-11-02 19:48:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:45,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:45,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:45,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:45,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127631844] [2022-11-02 19:48:45,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127631844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:45,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:45,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:45,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836411801] [2022-11-02 19:48:45,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:45,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:45,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:45,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:45,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:45,356 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 362 [2022-11-02 19:48:45,357 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 322 transitions, 685 flow. Second operand has 3 states, 3 states have (on average 339.6666666666667) internal successors, (1019), 3 states have internal predecessors, (1019), 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) [2022-11-02 19:48:45,357 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:45,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 362 [2022-11-02 19:48:45,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:45,630 INFO L130 PetriNetUnfolder]: 39/1127 cut-off events. [2022-11-02 19:48:45,631 INFO L131 PetriNetUnfolder]: For 23/34 co-relation queries the response was YES. [2022-11-02 19:48:45,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 1127 events. 39/1127 cut-off events. For 23/34 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6534 event pairs, 4 based on Foata normal form. 3/1004 useless extension candidates. Maximal degree in co-relation 1062. Up to 51 conditions per place. [2022-11-02 19:48:45,655 INFO L137 encePairwiseOnDemand]: 358/362 looper letters, 17 selfloop transitions, 2 changer transitions 0/327 dead transitions. [2022-11-02 19:48:45,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 327 transitions, 738 flow [2022-11-02 19:48:45,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:45,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1035 transitions. [2022-11-02 19:48:45,659 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9530386740331491 [2022-11-02 19:48:45,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1035 transitions. [2022-11-02 19:48:45,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1035 transitions. [2022-11-02 19:48:45,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:45,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1035 transitions. [2022-11-02 19:48:45,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 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) [2022-11-02 19:48:45,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:45,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:45,665 INFO L175 Difference]: Start difference. First operand has 319 places, 322 transitions, 685 flow. Second operand 3 states and 1035 transitions. [2022-11-02 19:48:45,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 327 transitions, 738 flow [2022-11-02 19:48:45,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 327 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 19:48:45,672 INFO L231 Difference]: Finished difference. Result has 320 places, 322 transitions, 695 flow [2022-11-02 19:48:45,673 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=320, PETRI_TRANSITIONS=322} [2022-11-02 19:48:45,673 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -10 predicate places. [2022-11-02 19:48:45,673 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 322 transitions, 695 flow [2022-11-02 19:48:45,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.6666666666667) internal successors, (1019), 3 states have internal predecessors, (1019), 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) [2022-11-02 19:48:45,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:45,675 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:45,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 19:48:45,675 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:45,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:45,676 INFO L85 PathProgramCache]: Analyzing trace with hash 28206425, now seen corresponding path program 1 times [2022-11-02 19:48:45,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:45,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421950655] [2022-11-02 19:48:45,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:45,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:45,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:45,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:45,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421950655] [2022-11-02 19:48:45,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421950655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:45,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:45,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:45,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835568666] [2022-11-02 19:48:45,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:45,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:45,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:45,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:45,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:45,733 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 362 [2022-11-02 19:48:45,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 322 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 334.0) internal successors, (1002), 3 states have internal predecessors, (1002), 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) [2022-11-02 19:48:45,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:45,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 362 [2022-11-02 19:48:45,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:46,433 INFO L130 PetriNetUnfolder]: 282/3985 cut-off events. [2022-11-02 19:48:46,434 INFO L131 PetriNetUnfolder]: For 69/171 co-relation queries the response was YES. [2022-11-02 19:48:46,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4471 conditions, 3985 events. 282/3985 cut-off events. For 69/171 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 39625 event pairs, 104 based on Foata normal form. 0/3502 useless extension candidates. Maximal degree in co-relation 3730. Up to 323 conditions per place. [2022-11-02 19:48:46,535 INFO L137 encePairwiseOnDemand]: 354/362 looper letters, 18 selfloop transitions, 4 changer transitions 0/324 dead transitions. [2022-11-02 19:48:46,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 324 transitions, 745 flow [2022-11-02 19:48:46,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:46,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1022 transitions. [2022-11-02 19:48:46,538 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9410681399631676 [2022-11-02 19:48:46,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1022 transitions. [2022-11-02 19:48:46,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1022 transitions. [2022-11-02 19:48:46,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:46,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1022 transitions. [2022-11-02 19:48:46,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.6666666666667) internal successors, (1022), 3 states have internal predecessors, (1022), 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) [2022-11-02 19:48:46,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:46,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:46,544 INFO L175 Difference]: Start difference. First operand has 320 places, 322 transitions, 695 flow. Second operand 3 states and 1022 transitions. [2022-11-02 19:48:46,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 324 transitions, 745 flow [2022-11-02 19:48:46,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 324 transitions, 745 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 19:48:46,550 INFO L231 Difference]: Finished difference. Result has 319 places, 322 transitions, 715 flow [2022-11-02 19:48:46,551 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=715, PETRI_PLACES=319, PETRI_TRANSITIONS=322} [2022-11-02 19:48:46,551 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -11 predicate places. [2022-11-02 19:48:46,551 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 322 transitions, 715 flow [2022-11-02 19:48:46,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.0) internal successors, (1002), 3 states have internal predecessors, (1002), 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) [2022-11-02 19:48:46,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:46,553 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:46,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 19:48:46,553 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:46,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:46,553 INFO L85 PathProgramCache]: Analyzing trace with hash 313020980, now seen corresponding path program 1 times [2022-11-02 19:48:46,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:46,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113862342] [2022-11-02 19:48:46,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:46,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:46,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:46,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:46,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113862342] [2022-11-02 19:48:46,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113862342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:46,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:46,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:46,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209738737] [2022-11-02 19:48:46,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:46,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:46,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:46,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:46,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:46,592 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 362 [2022-11-02 19:48:46,593 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 322 transitions, 715 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 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) [2022-11-02 19:48:46,593 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:46,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 362 [2022-11-02 19:48:46,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:47,046 INFO L130 PetriNetUnfolder]: 96/2001 cut-off events. [2022-11-02 19:48:47,046 INFO L131 PetriNetUnfolder]: For 10/18 co-relation queries the response was YES. [2022-11-02 19:48:47,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2246 conditions, 2001 events. 96/2001 cut-off events. For 10/18 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 15832 event pairs, 8 based on Foata normal form. 1/1779 useless extension candidates. Maximal degree in co-relation 1930. Up to 66 conditions per place. [2022-11-02 19:48:47,076 INFO L137 encePairwiseOnDemand]: 359/362 looper letters, 13 selfloop transitions, 2 changer transitions 0/323 dead transitions. [2022-11-02 19:48:47,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 323 transitions, 749 flow [2022-11-02 19:48:47,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:47,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:47,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1033 transitions. [2022-11-02 19:48:47,079 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9511970534069981 [2022-11-02 19:48:47,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1033 transitions. [2022-11-02 19:48:47,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1033 transitions. [2022-11-02 19:48:47,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:47,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1033 transitions. [2022-11-02 19:48:47,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 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) [2022-11-02 19:48:47,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:47,086 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:47,086 INFO L175 Difference]: Start difference. First operand has 319 places, 322 transitions, 715 flow. Second operand 3 states and 1033 transitions. [2022-11-02 19:48:47,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 323 transitions, 749 flow [2022-11-02 19:48:47,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 323 transitions, 749 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 19:48:47,094 INFO L231 Difference]: Finished difference. Result has 320 places, 321 transitions, 717 flow [2022-11-02 19:48:47,095 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=713, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=717, PETRI_PLACES=320, PETRI_TRANSITIONS=321} [2022-11-02 19:48:47,095 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -10 predicate places. [2022-11-02 19:48:47,095 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 321 transitions, 717 flow [2022-11-02 19:48:47,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 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) [2022-11-02 19:48:47,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:47,097 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:47,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 19:48:47,097 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:47,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:47,098 INFO L85 PathProgramCache]: Analyzing trace with hash -2777962, now seen corresponding path program 1 times [2022-11-02 19:48:47,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:47,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880402570] [2022-11-02 19:48:47,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:47,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:47,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:47,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:47,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880402570] [2022-11-02 19:48:47,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880402570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:47,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:47,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:47,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097000973] [2022-11-02 19:48:47,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:47,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:47,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:47,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:47,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:47,146 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 362 [2022-11-02 19:48:47,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 321 transitions, 717 flow. Second operand has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 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) [2022-11-02 19:48:47,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:47,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 362 [2022-11-02 19:48:47,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:47,724 INFO L130 PetriNetUnfolder]: 122/2795 cut-off events. [2022-11-02 19:48:47,725 INFO L131 PetriNetUnfolder]: For 42/46 co-relation queries the response was YES. [2022-11-02 19:48:47,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3097 conditions, 2795 events. 122/2795 cut-off events. For 42/46 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 24463 event pairs, 16 based on Foata normal form. 0/2526 useless extension candidates. Maximal degree in co-relation 2597. Up to 164 conditions per place. [2022-11-02 19:48:47,761 INFO L137 encePairwiseOnDemand]: 358/362 looper letters, 16 selfloop transitions, 2 changer transitions 0/325 dead transitions. [2022-11-02 19:48:47,761 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 325 transitions, 765 flow [2022-11-02 19:48:47,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:47,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:47,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1034 transitions. [2022-11-02 19:48:47,763 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9521178637200737 [2022-11-02 19:48:47,764 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1034 transitions. [2022-11-02 19:48:47,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1034 transitions. [2022-11-02 19:48:47,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:47,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1034 transitions. [2022-11-02 19:48:47,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.6666666666667) internal successors, (1034), 3 states have internal predecessors, (1034), 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) [2022-11-02 19:48:47,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:47,769 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:47,769 INFO L175 Difference]: Start difference. First operand has 320 places, 321 transitions, 717 flow. Second operand 3 states and 1034 transitions. [2022-11-02 19:48:47,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 325 transitions, 765 flow [2022-11-02 19:48:47,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 325 transitions, 761 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:48:47,776 INFO L231 Difference]: Finished difference. Result has 319 places, 321 transitions, 723 flow [2022-11-02 19:48:47,776 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=709, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=723, PETRI_PLACES=319, PETRI_TRANSITIONS=321} [2022-11-02 19:48:47,777 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -11 predicate places. [2022-11-02 19:48:47,777 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 321 transitions, 723 flow [2022-11-02 19:48:47,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 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) [2022-11-02 19:48:47,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:47,778 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:47,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 19:48:47,778 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:47,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:47,779 INFO L85 PathProgramCache]: Analyzing trace with hash 707363606, now seen corresponding path program 1 times [2022-11-02 19:48:47,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:47,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265393022] [2022-11-02 19:48:47,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:47,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:47,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:47,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:47,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265393022] [2022-11-02 19:48:47,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265393022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:47,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:47,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:47,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801514722] [2022-11-02 19:48:47,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:47,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:47,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:47,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:47,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:47,819 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 362 [2022-11-02 19:48:47,820 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 321 transitions, 723 flow. Second operand has 3 states, 3 states have (on average 337.6666666666667) internal successors, (1013), 3 states have internal predecessors, (1013), 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) [2022-11-02 19:48:47,821 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:47,821 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 362 [2022-11-02 19:48:47,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:48,317 INFO L130 PetriNetUnfolder]: 120/2552 cut-off events. [2022-11-02 19:48:48,317 INFO L131 PetriNetUnfolder]: For 29/46 co-relation queries the response was YES. [2022-11-02 19:48:48,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2946 conditions, 2552 events. 120/2552 cut-off events. For 29/46 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 22196 event pairs, 18 based on Foata normal form. 0/2299 useless extension candidates. Maximal degree in co-relation 2350. Up to 93 conditions per place. [2022-11-02 19:48:48,350 INFO L137 encePairwiseOnDemand]: 359/362 looper letters, 16 selfloop transitions, 2 changer transitions 0/322 dead transitions. [2022-11-02 19:48:48,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 322 transitions, 763 flow [2022-11-02 19:48:48,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:48,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:48,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1027 transitions. [2022-11-02 19:48:48,353 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9456721915285451 [2022-11-02 19:48:48,353 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1027 transitions. [2022-11-02 19:48:48,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1027 transitions. [2022-11-02 19:48:48,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:48,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1027 transitions. [2022-11-02 19:48:48,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 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) [2022-11-02 19:48:48,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:48,359 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:48,359 INFO L175 Difference]: Start difference. First operand has 319 places, 321 transitions, 723 flow. Second operand 3 states and 1027 transitions. [2022-11-02 19:48:48,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 322 transitions, 763 flow [2022-11-02 19:48:48,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 322 transitions, 763 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 19:48:48,366 INFO L231 Difference]: Finished difference. Result has 320 places, 320 transitions, 725 flow [2022-11-02 19:48:48,367 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=725, PETRI_PLACES=320, PETRI_TRANSITIONS=320} [2022-11-02 19:48:48,367 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -10 predicate places. [2022-11-02 19:48:48,367 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 320 transitions, 725 flow [2022-11-02 19:48:48,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.6666666666667) internal successors, (1013), 3 states have internal predecessors, (1013), 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) [2022-11-02 19:48:48,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:48,368 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:48,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 19:48:48,369 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:48,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:48,369 INFO L85 PathProgramCache]: Analyzing trace with hash 819954762, now seen corresponding path program 1 times [2022-11-02 19:48:48,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:48,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589830305] [2022-11-02 19:48:48,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:48,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:48,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:48,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:48,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589830305] [2022-11-02 19:48:48,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589830305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:48,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:48,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 19:48:48,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270510924] [2022-11-02 19:48:48,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:48,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 19:48:48,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:48,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 19:48:48,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 19:48:48,764 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 362 [2022-11-02 19:48:48,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 320 transitions, 725 flow. Second operand has 6 states, 6 states have (on average 325.0) internal successors, (1950), 6 states have internal predecessors, (1950), 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) [2022-11-02 19:48:48,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:48,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 362 [2022-11-02 19:48:48,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:49,124 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([998] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork1_thidvar3_4) (= 0 v_thread3Thread1of1ForFork1_thidvar1_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem36#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork1_thidvar0_4) (= 0 v_thread3Thread1of1ForFork1_thidvar2_4)) InVars {thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[][295], [424#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 381#true, Black: 386#true, 403#(= |#race~length_4~0| 0), Black: 391#true, 383#(= |#race~length_0~0| 0), Black: 396#true, Black: 401#true, 398#(= |#race~to_int_3~0| 0), 412#(= |#race~to_int_5~0| 0), 415#true, 393#(= |#race~to_int_1~0| 0), 68#L77-7true, Black: 410#true, 388#(= |#race~length_2~0| 0)]) [2022-11-02 19:48:49,125 INFO L383 tUnfolder$Statistics]: this new event has 216 ancestors and is not cut-off event [2022-11-02 19:48:49,125 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is not cut-off event [2022-11-02 19:48:49,125 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is not cut-off event [2022-11-02 19:48:49,125 INFO L386 tUnfolder$Statistics]: existing Event has 242 ancestors and is not cut-off event [2022-11-02 19:48:49,128 INFO L130 PetriNetUnfolder]: 60/1659 cut-off events. [2022-11-02 19:48:49,129 INFO L131 PetriNetUnfolder]: For 2/24 co-relation queries the response was YES. [2022-11-02 19:48:49,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1895 conditions, 1659 events. 60/1659 cut-off events. For 2/24 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 12261 event pairs, 0 based on Foata normal form. 8/1506 useless extension candidates. Maximal degree in co-relation 1636. Up to 52 conditions per place. [2022-11-02 19:48:49,155 INFO L137 encePairwiseOnDemand]: 357/362 looper letters, 23 selfloop transitions, 4 changer transitions 0/319 dead transitions. [2022-11-02 19:48:49,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 319 transitions, 777 flow [2022-11-02 19:48:49,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 19:48:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 19:48:49,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1966 transitions. [2022-11-02 19:48:49,160 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9051565377532228 [2022-11-02 19:48:49,161 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1966 transitions. [2022-11-02 19:48:49,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1966 transitions. [2022-11-02 19:48:49,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:49,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1966 transitions. [2022-11-02 19:48:49,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 327.6666666666667) internal successors, (1966), 6 states have internal predecessors, (1966), 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) [2022-11-02 19:48:49,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 362.0) internal successors, (2534), 7 states have internal predecessors, (2534), 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) [2022-11-02 19:48:49,171 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 362.0) internal successors, (2534), 7 states have internal predecessors, (2534), 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) [2022-11-02 19:48:49,171 INFO L175 Difference]: Start difference. First operand has 320 places, 320 transitions, 725 flow. Second operand 6 states and 1966 transitions. [2022-11-02 19:48:49,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 319 transitions, 777 flow [2022-11-02 19:48:49,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 319 transitions, 773 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:48:49,177 INFO L231 Difference]: Finished difference. Result has 322 places, 319 transitions, 727 flow [2022-11-02 19:48:49,178 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=727, PETRI_PLACES=322, PETRI_TRANSITIONS=319} [2022-11-02 19:48:49,179 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -8 predicate places. [2022-11-02 19:48:49,179 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 319 transitions, 727 flow [2022-11-02 19:48:49,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 325.0) internal successors, (1950), 6 states have internal predecessors, (1950), 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) [2022-11-02 19:48:49,180 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:49,180 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:49,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 19:48:49,180 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:49,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:49,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1775315585, now seen corresponding path program 1 times [2022-11-02 19:48:49,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:49,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254058790] [2022-11-02 19:48:49,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:49,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:49,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:49,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:49,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254058790] [2022-11-02 19:48:49,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254058790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:49,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:49,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:49,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421811776] [2022-11-02 19:48:49,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:49,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:49,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:49,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:49,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:49,227 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 336 out of 362 [2022-11-02 19:48:49,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 319 transitions, 727 flow. Second operand has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 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) [2022-11-02 19:48:49,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:49,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 336 of 362 [2022-11-02 19:48:49,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:49,647 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([950] L55-28-->L55-29: Formula: true InVars {} OutVars{thread3Thread1of1ForFork1_#t~nondet15#1=|v_thread3Thread1of1ForFork1_#t~nondet15#1_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_#t~nondet15#1][200], [424#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 381#true, Black: 386#true, 104#L76-7true, 403#(= |#race~length_4~0| 0), 300#L55-29true, 383#(= |#race~length_0~0| 0), 426#true, Black: 391#true, Black: 396#true, Black: 401#true, 398#(= |#race~to_int_3~0| 0), 412#(= |#race~to_int_5~0| 0), 393#(= |#race~to_int_1~0| 0), Black: 410#true, 388#(= |#race~length_2~0| 0)]) [2022-11-02 19:48:49,647 INFO L383 tUnfolder$Statistics]: this new event has 199 ancestors and is cut-off event [2022-11-02 19:48:49,647 INFO L386 tUnfolder$Statistics]: existing Event has 199 ancestors and is cut-off event [2022-11-02 19:48:49,647 INFO L386 tUnfolder$Statistics]: existing Event has 199 ancestors and is cut-off event [2022-11-02 19:48:49,648 INFO L386 tUnfolder$Statistics]: existing Event has 225 ancestors and is cut-off event [2022-11-02 19:48:49,671 INFO L130 PetriNetUnfolder]: 145/2005 cut-off events. [2022-11-02 19:48:49,671 INFO L131 PetriNetUnfolder]: For 95/111 co-relation queries the response was YES. [2022-11-02 19:48:49,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2496 conditions, 2005 events. 145/2005 cut-off events. For 95/111 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 16667 event pairs, 36 based on Foata normal form. 1/1829 useless extension candidates. Maximal degree in co-relation 2388. Up to 184 conditions per place. [2022-11-02 19:48:49,698 INFO L137 encePairwiseOnDemand]: 359/362 looper letters, 15 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2022-11-02 19:48:49,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 320 transitions, 765 flow [2022-11-02 19:48:49,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:49,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:49,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1026 transitions. [2022-11-02 19:48:49,702 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9447513812154696 [2022-11-02 19:48:49,702 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1026 transitions. [2022-11-02 19:48:49,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1026 transitions. [2022-11-02 19:48:49,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:49,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1026 transitions. [2022-11-02 19:48:49,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 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) [2022-11-02 19:48:49,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:49,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:49,709 INFO L175 Difference]: Start difference. First operand has 322 places, 319 transitions, 727 flow. Second operand 3 states and 1026 transitions. [2022-11-02 19:48:49,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 320 transitions, 765 flow [2022-11-02 19:48:49,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 320 transitions, 758 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 19:48:49,717 INFO L231 Difference]: Finished difference. Result has 319 places, 318 transitions, 722 flow [2022-11-02 19:48:49,718 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=319, PETRI_TRANSITIONS=318} [2022-11-02 19:48:49,718 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -11 predicate places. [2022-11-02 19:48:49,719 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 318 transitions, 722 flow [2022-11-02 19:48:49,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 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) [2022-11-02 19:48:49,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:49,720 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:49,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 19:48:49,720 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:49,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:49,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1292626569, now seen corresponding path program 1 times [2022-11-02 19:48:49,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:49,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126072521] [2022-11-02 19:48:49,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:49,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:50,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:50,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:50,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126072521] [2022-11-02 19:48:50,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126072521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:50,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:50,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 19:48:50,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000899661] [2022-11-02 19:48:50,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:50,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 19:48:50,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:50,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 19:48:50,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 19:48:50,341 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 362 [2022-11-02 19:48:50,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 318 transitions, 722 flow. Second operand has 6 states, 6 states have (on average 326.0) internal successors, (1956), 6 states have internal predecessors, (1956), 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) [2022-11-02 19:48:50,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:50,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 362 [2022-11-02 19:48:50,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:50,784 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([998] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork1_thidvar3_4) (= 0 v_thread3Thread1of1ForFork1_thidvar1_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem36#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork1_thidvar0_4) (= 0 v_thread3Thread1of1ForFork1_thidvar2_4)) InVars {thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[][293], [424#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 381#true, Black: 386#true, 403#(= |#race~length_4~0| 0), Black: 391#true, 426#true, 383#(= |#race~length_0~0| 0), Black: 396#true, 435#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 401#true, 398#(= |#race~to_int_3~0| 0), 412#(= |#race~to_int_5~0| 0), 393#(= |#race~to_int_1~0| 0), 68#L77-7true, Black: 410#true, 388#(= |#race~length_2~0| 0)]) [2022-11-02 19:48:50,785 INFO L383 tUnfolder$Statistics]: this new event has 216 ancestors and is not cut-off event [2022-11-02 19:48:50,785 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is not cut-off event [2022-11-02 19:48:50,785 INFO L386 tUnfolder$Statistics]: existing Event has 242 ancestors and is not cut-off event [2022-11-02 19:48:50,785 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is not cut-off event [2022-11-02 19:48:50,788 INFO L130 PetriNetUnfolder]: 60/1626 cut-off events. [2022-11-02 19:48:50,788 INFO L131 PetriNetUnfolder]: For 2/23 co-relation queries the response was YES. [2022-11-02 19:48:50,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1914 conditions, 1626 events. 60/1626 cut-off events. For 2/23 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 11856 event pairs, 0 based on Foata normal form. 4/1502 useless extension candidates. Maximal degree in co-relation 1802. Up to 42 conditions per place. [2022-11-02 19:48:50,817 INFO L137 encePairwiseOnDemand]: 357/362 looper letters, 22 selfloop transitions, 4 changer transitions 0/317 dead transitions. [2022-11-02 19:48:50,818 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 317 transitions, 772 flow [2022-11-02 19:48:50,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 19:48:50,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 19:48:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1965 transitions. [2022-11-02 19:48:50,822 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9046961325966851 [2022-11-02 19:48:50,822 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1965 transitions. [2022-11-02 19:48:50,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1965 transitions. [2022-11-02 19:48:50,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:50,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1965 transitions. [2022-11-02 19:48:50,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 327.5) internal successors, (1965), 6 states have internal predecessors, (1965), 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) [2022-11-02 19:48:50,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 362.0) internal successors, (2534), 7 states have internal predecessors, (2534), 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) [2022-11-02 19:48:50,832 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 362.0) internal successors, (2534), 7 states have internal predecessors, (2534), 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) [2022-11-02 19:48:50,832 INFO L175 Difference]: Start difference. First operand has 319 places, 318 transitions, 722 flow. Second operand 6 states and 1965 transitions. [2022-11-02 19:48:50,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 317 transitions, 772 flow [2022-11-02 19:48:50,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 317 transitions, 768 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:48:50,839 INFO L231 Difference]: Finished difference. Result has 321 places, 317 transitions, 724 flow [2022-11-02 19:48:50,839 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=724, PETRI_PLACES=321, PETRI_TRANSITIONS=317} [2022-11-02 19:48:50,840 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -9 predicate places. [2022-11-02 19:48:50,840 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 317 transitions, 724 flow [2022-11-02 19:48:50,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 326.0) internal successors, (1956), 6 states have internal predecessors, (1956), 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) [2022-11-02 19:48:50,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:50,841 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:50,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 19:48:50,842 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:50,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:50,842 INFO L85 PathProgramCache]: Analyzing trace with hash -109716844, now seen corresponding path program 1 times [2022-11-02 19:48:50,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:50,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255953931] [2022-11-02 19:48:50,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:50,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:50,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:50,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:50,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255953931] [2022-11-02 19:48:50,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255953931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:50,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:50,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 19:48:50,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453643667] [2022-11-02 19:48:50,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:50,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:50,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:50,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:50,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:50,912 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 362 [2022-11-02 19:48:50,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 317 transitions, 724 flow. Second operand 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) [2022-11-02 19:48:50,914 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:50,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 362 [2022-11-02 19:48:50,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:51,450 INFO L130 PetriNetUnfolder]: 123/3130 cut-off events. [2022-11-02 19:48:51,451 INFO L131 PetriNetUnfolder]: For 30/34 co-relation queries the response was YES. [2022-11-02 19:48:51,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3541 conditions, 3130 events. 123/3130 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 27773 event pairs, 10 based on Foata normal form. 1/2889 useless extension candidates. Maximal degree in co-relation 3159. Up to 80 conditions per place. [2022-11-02 19:48:51,497 INFO L137 encePairwiseOnDemand]: 356/362 looper letters, 15 selfloop transitions, 4 changer transitions 0/324 dead transitions. [2022-11-02 19:48:51,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 324 transitions, 781 flow [2022-11-02 19:48:51,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:51,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1044 transitions. [2022-11-02 19:48:51,501 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9613259668508287 [2022-11-02 19:48:51,501 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1044 transitions. [2022-11-02 19:48:51,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1044 transitions. [2022-11-02 19:48:51,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:51,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1044 transitions. [2022-11-02 19:48:51,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 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) [2022-11-02 19:48:51,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:51,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:51,506 INFO L175 Difference]: Start difference. First operand has 321 places, 317 transitions, 724 flow. Second operand 3 states and 1044 transitions. [2022-11-02 19:48:51,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 324 transitions, 781 flow [2022-11-02 19:48:51,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 324 transitions, 774 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 19:48:51,513 INFO L231 Difference]: Finished difference. Result has 321 places, 319 transitions, 745 flow [2022-11-02 19:48:51,513 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=745, PETRI_PLACES=321, PETRI_TRANSITIONS=319} [2022-11-02 19:48:51,514 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -9 predicate places. [2022-11-02 19:48:51,514 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 319 transitions, 745 flow [2022-11-02 19:48:51,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-11-02 19:48:51,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:51,515 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:51,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 19:48:51,515 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:51,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:51,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1278451838, now seen corresponding path program 2 times [2022-11-02 19:48:51,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:51,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183783555] [2022-11-02 19:48:51,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:51,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:51,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:51,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183783555] [2022-11-02 19:48:51,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183783555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:51,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:51,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 19:48:51,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375395270] [2022-11-02 19:48:51,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:51,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:51,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:51,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:51,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:51,584 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 362 [2022-11-02 19:48:51,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 319 transitions, 745 flow. Second operand 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) [2022-11-02 19:48:51,585 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:51,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 362 [2022-11-02 19:48:51,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:52,035 INFO L130 PetriNetUnfolder]: 101/2594 cut-off events. [2022-11-02 19:48:52,035 INFO L131 PetriNetUnfolder]: For 77/86 co-relation queries the response was YES. [2022-11-02 19:48:52,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2967 conditions, 2594 events. 101/2594 cut-off events. For 77/86 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 21664 event pairs, 9 based on Foata normal form. 6/2416 useless extension candidates. Maximal degree in co-relation 2466. Up to 69 conditions per place. [2022-11-02 19:48:52,075 INFO L137 encePairwiseOnDemand]: 358/362 looper letters, 19 selfloop transitions, 2 changer transitions 0/326 dead transitions. [2022-11-02 19:48:52,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 326 transitions, 810 flow [2022-11-02 19:48:52,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:52,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1044 transitions. [2022-11-02 19:48:52,081 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9613259668508287 [2022-11-02 19:48:52,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1044 transitions. [2022-11-02 19:48:52,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1044 transitions. [2022-11-02 19:48:52,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:52,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1044 transitions. [2022-11-02 19:48:52,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 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) [2022-11-02 19:48:52,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:52,087 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:52,087 INFO L175 Difference]: Start difference. First operand has 321 places, 319 transitions, 745 flow. Second operand 3 states and 1044 transitions. [2022-11-02 19:48:52,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 326 transitions, 810 flow [2022-11-02 19:48:52,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 326 transitions, 802 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:48:52,094 INFO L231 Difference]: Finished difference. Result has 323 places, 321 transitions, 761 flow [2022-11-02 19:48:52,095 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=761, PETRI_PLACES=323, PETRI_TRANSITIONS=321} [2022-11-02 19:48:52,095 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -7 predicate places. [2022-11-02 19:48:52,095 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 321 transitions, 761 flow [2022-11-02 19:48:52,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-11-02 19:48:52,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:52,096 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:52,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 19:48:52,097 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:52,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:52,097 INFO L85 PathProgramCache]: Analyzing trace with hash 41581857, now seen corresponding path program 1 times [2022-11-02 19:48:52,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:52,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655094153] [2022-11-02 19:48:52,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:52,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:52,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:52,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:52,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655094153] [2022-11-02 19:48:52,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655094153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:52,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:52,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 19:48:52,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755304981] [2022-11-02 19:48:52,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:52,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 19:48:52,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:52,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 19:48:52,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 19:48:52,615 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 323 out of 362 [2022-11-02 19:48:52,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 321 transitions, 761 flow. Second operand has 6 states, 6 states have (on average 327.0) internal successors, (1962), 6 states have internal predecessors, (1962), 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) [2022-11-02 19:48:52,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:52,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 323 of 362 [2022-11-02 19:48:52,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:52,952 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([998] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork1_thidvar3_4) (= 0 v_thread3Thread1of1ForFork1_thidvar1_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem36#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork1_thidvar0_4) (= 0 v_thread3Thread1of1ForFork1_thidvar2_4)) InVars {thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[][296], [Black: 443#true, 424#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 381#true, Black: 386#true, 403#(= |#race~length_4~0| 0), Black: 391#true, 383#(= |#race~length_0~0| 0), 454#(and (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ |ULTIMATE.start_main_~#t3~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) |ULTIMATE.start_main_~#t3~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0)), Black: 396#true, 435#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 401#true, 398#(= |#race~to_int_3~0| 0), 445#(not (= ~length_0~0 0)), 412#(= |#race~to_int_5~0| 0), Black: 439#(= ~length_0~0 0), 68#L77-7true, 393#(= |#race~to_int_1~0| 0), Black: 410#true, 388#(= |#race~length_2~0| 0)]) [2022-11-02 19:48:52,953 INFO L383 tUnfolder$Statistics]: this new event has 216 ancestors and is not cut-off event [2022-11-02 19:48:52,953 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is not cut-off event [2022-11-02 19:48:52,953 INFO L386 tUnfolder$Statistics]: existing Event has 242 ancestors and is not cut-off event [2022-11-02 19:48:52,953 INFO L386 tUnfolder$Statistics]: existing Event has 216 ancestors and is not cut-off event [2022-11-02 19:48:52,957 INFO L130 PetriNetUnfolder]: 59/1757 cut-off events. [2022-11-02 19:48:52,957 INFO L131 PetriNetUnfolder]: For 15/43 co-relation queries the response was YES. [2022-11-02 19:48:52,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2028 conditions, 1757 events. 59/1757 cut-off events. For 15/43 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 13284 event pairs, 0 based on Foata normal form. 0/1620 useless extension candidates. Maximal degree in co-relation 1912. Up to 44 conditions per place. [2022-11-02 19:48:52,988 INFO L137 encePairwiseOnDemand]: 357/362 looper letters, 21 selfloop transitions, 4 changer transitions 0/320 dead transitions. [2022-11-02 19:48:52,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 320 transitions, 809 flow [2022-11-02 19:48:52,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 19:48:52,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 19:48:52,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1964 transitions. [2022-11-02 19:48:52,993 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9042357274401474 [2022-11-02 19:48:52,993 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1964 transitions. [2022-11-02 19:48:52,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1964 transitions. [2022-11-02 19:48:52,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:52,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1964 transitions. [2022-11-02 19:48:52,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 327.3333333333333) internal successors, (1964), 6 states have internal predecessors, (1964), 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) [2022-11-02 19:48:53,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 362.0) internal successors, (2534), 7 states have internal predecessors, (2534), 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) [2022-11-02 19:48:53,003 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 362.0) internal successors, (2534), 7 states have internal predecessors, (2534), 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) [2022-11-02 19:48:53,004 INFO L175 Difference]: Start difference. First operand has 323 places, 321 transitions, 761 flow. Second operand 6 states and 1964 transitions. [2022-11-02 19:48:53,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 320 transitions, 809 flow [2022-11-02 19:48:53,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 320 transitions, 803 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-02 19:48:53,012 INFO L231 Difference]: Finished difference. Result has 326 places, 320 transitions, 761 flow [2022-11-02 19:48:53,013 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=761, PETRI_PLACES=326, PETRI_TRANSITIONS=320} [2022-11-02 19:48:53,013 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -4 predicate places. [2022-11-02 19:48:53,014 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 320 transitions, 761 flow [2022-11-02 19:48:53,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 327.0) internal successors, (1962), 6 states have internal predecessors, (1962), 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) [2022-11-02 19:48:53,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:53,015 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:53,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 19:48:53,015 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:53,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:53,016 INFO L85 PathProgramCache]: Analyzing trace with hash 388542168, now seen corresponding path program 1 times [2022-11-02 19:48:53,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:53,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875090653] [2022-11-02 19:48:53,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:53,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:53,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:53,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875090653] [2022-11-02 19:48:53,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875090653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:53,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:53,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:53,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305675743] [2022-11-02 19:48:53,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:53,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:53,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:53,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:53,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:53,093 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 362 [2022-11-02 19:48:53,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 320 transitions, 761 flow. Second operand has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 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) [2022-11-02 19:48:53,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:53,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 362 [2022-11-02 19:48:53,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:53,581 INFO L130 PetriNetUnfolder]: 92/2447 cut-off events. [2022-11-02 19:48:53,581 INFO L131 PetriNetUnfolder]: For 20/34 co-relation queries the response was YES. [2022-11-02 19:48:53,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2813 conditions, 2447 events. 92/2447 cut-off events. For 20/34 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 20821 event pairs, 12 based on Foata normal form. 0/2273 useless extension candidates. Maximal degree in co-relation 2571. Up to 65 conditions per place. [2022-11-02 19:48:53,608 INFO L137 encePairwiseOnDemand]: 360/362 looper letters, 9 selfloop transitions, 1 changer transitions 0/319 dead transitions. [2022-11-02 19:48:53,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 319 transitions, 779 flow [2022-11-02 19:48:53,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:53,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1034 transitions. [2022-11-02 19:48:53,611 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9521178637200737 [2022-11-02 19:48:53,612 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1034 transitions. [2022-11-02 19:48:53,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1034 transitions. [2022-11-02 19:48:53,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:53,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1034 transitions. [2022-11-02 19:48:53,615 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.6666666666667) internal successors, (1034), 3 states have internal predecessors, (1034), 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) [2022-11-02 19:48:53,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:53,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:53,617 INFO L175 Difference]: Start difference. First operand has 326 places, 320 transitions, 761 flow. Second operand 3 states and 1034 transitions. [2022-11-02 19:48:53,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 319 transitions, 779 flow [2022-11-02 19:48:53,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 319 transitions, 772 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-02 19:48:53,623 INFO L231 Difference]: Finished difference. Result has 323 places, 319 transitions, 754 flow [2022-11-02 19:48:53,624 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=754, PETRI_PLACES=323, PETRI_TRANSITIONS=319} [2022-11-02 19:48:53,624 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -7 predicate places. [2022-11-02 19:48:53,624 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 319 transitions, 754 flow [2022-11-02 19:48:53,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 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) [2022-11-02 19:48:53,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:53,625 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:53,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 19:48:53,626 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:53,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:53,626 INFO L85 PathProgramCache]: Analyzing trace with hash -487896060, now seen corresponding path program 1 times [2022-11-02 19:48:53,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:53,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677995248] [2022-11-02 19:48:53,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:53,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:53,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:53,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:53,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677995248] [2022-11-02 19:48:53,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677995248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:53,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:53,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 19:48:53,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906361462] [2022-11-02 19:48:53,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:53,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:53,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:53,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:53,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:53,722 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 362 [2022-11-02 19:48:53,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 319 transitions, 754 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 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) [2022-11-02 19:48:53,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:53,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 362 [2022-11-02 19:48:53,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:54,480 INFO L130 PetriNetUnfolder]: 217/4695 cut-off events. [2022-11-02 19:48:54,480 INFO L131 PetriNetUnfolder]: For 105/142 co-relation queries the response was YES. [2022-11-02 19:48:54,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5400 conditions, 4695 events. 217/4695 cut-off events. For 105/142 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 49435 event pairs, 59 based on Foata normal form. 4/4376 useless extension candidates. Maximal degree in co-relation 5147. Up to 221 conditions per place. [2022-11-02 19:48:54,617 INFO L137 encePairwiseOnDemand]: 352/362 looper letters, 18 selfloop transitions, 6 changer transitions 0/327 dead transitions. [2022-11-02 19:48:54,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 327 transitions, 822 flow [2022-11-02 19:48:54,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:54,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:54,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1039 transitions. [2022-11-02 19:48:54,620 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9567219152854513 [2022-11-02 19:48:54,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1039 transitions. [2022-11-02 19:48:54,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1039 transitions. [2022-11-02 19:48:54,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:54,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1039 transitions. [2022-11-02 19:48:54,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 346.3333333333333) internal successors, (1039), 3 states have internal predecessors, (1039), 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) [2022-11-02 19:48:54,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:54,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:54,626 INFO L175 Difference]: Start difference. First operand has 323 places, 319 transitions, 754 flow. Second operand 3 states and 1039 transitions. [2022-11-02 19:48:54,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 327 transitions, 822 flow [2022-11-02 19:48:54,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 327 transitions, 821 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 19:48:54,633 INFO L231 Difference]: Finished difference. Result has 326 places, 323 transitions, 801 flow [2022-11-02 19:48:54,633 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=801, PETRI_PLACES=326, PETRI_TRANSITIONS=323} [2022-11-02 19:48:54,634 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -4 predicate places. [2022-11-02 19:48:54,634 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 323 transitions, 801 flow [2022-11-02 19:48:54,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 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) [2022-11-02 19:48:54,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:54,635 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:54,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 19:48:54,635 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:54,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:54,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1416267458, now seen corresponding path program 1 times [2022-11-02 19:48:54,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:54,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245599625] [2022-11-02 19:48:54,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:54,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:54,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:54,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:54,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245599625] [2022-11-02 19:48:54,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245599625] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:54,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:54,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 19:48:54,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570617217] [2022-11-02 19:48:54,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:54,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:54,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:54,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:54,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:54,716 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 362 [2022-11-02 19:48:54,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 323 transitions, 801 flow. Second operand has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 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) [2022-11-02 19:48:54,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:54,718 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 362 [2022-11-02 19:48:54,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:55,433 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([998] thread3EXIT-->L77-7: Formula: (and (= 0 v_thread3Thread1of1ForFork1_thidvar3_4) (= 0 v_thread3Thread1of1ForFork1_thidvar1_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem36#1_5| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296)))) v_thread3Thread1of1ForFork1_thidvar0_4) (= 0 v_thread3Thread1of1ForFork1_thidvar2_4)) InVars {thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_4, thread3Thread1of1ForFork1_thidvar3=v_thread3Thread1of1ForFork1_thidvar3_4, ULTIMATE.start_main_#t~mem36#1=|v_ULTIMATE.start_main_#t~mem36#1_5|, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_4, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_4} AuxVars[] AssignedVars[][308], [424#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), Black: 381#true, 462#(= ~length_4~0 0), Black: 386#true, 403#(= |#race~length_4~0| 0), 383#(= |#race~length_0~0| 0), 454#(and (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ |ULTIMATE.start_main_~#t3~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) |ULTIMATE.start_main_~#t3~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t3~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t3~0#1.offset|)) 0)), 410#true, 435#(and (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) |ULTIMATE.start_main_~#t2~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t2~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ |ULTIMATE.start_main_~#t2~0#1.offset| 1)) 0) (= 0 (select (select |#race| |ULTIMATE.start_main_~#t2~0#1.base|) (+ 3 |ULTIMATE.start_main_~#t2~0#1.offset|)))), Black: 460#true, 396#true, Black: 401#true, 391#true, Black: 437#true, 468#(not (= ~length_2~0 0)), 68#L77-7true, Black: 445#(not (= ~length_0~0 0)), 388#(= |#race~length_2~0| 0)]) [2022-11-02 19:48:55,433 INFO L383 tUnfolder$Statistics]: this new event has 164 ancestors and is not cut-off event [2022-11-02 19:48:55,433 INFO L386 tUnfolder$Statistics]: existing Event has 164 ancestors and is not cut-off event [2022-11-02 19:48:55,433 INFO L386 tUnfolder$Statistics]: existing Event has 164 ancestors and is not cut-off event [2022-11-02 19:48:55,433 INFO L386 tUnfolder$Statistics]: existing Event has 164 ancestors and is not cut-off event [2022-11-02 19:48:55,577 INFO L130 PetriNetUnfolder]: 138/5678 cut-off events. [2022-11-02 19:48:55,578 INFO L131 PetriNetUnfolder]: For 170/213 co-relation queries the response was YES. [2022-11-02 19:48:55,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6566 conditions, 5678 events. 138/5678 cut-off events. For 170/213 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 63652 event pairs, 43 based on Foata normal form. 1/5401 useless extension candidates. Maximal degree in co-relation 6196. Up to 141 conditions per place. [2022-11-02 19:48:55,636 INFO L137 encePairwiseOnDemand]: 356/362 looper letters, 19 selfloop transitions, 3 changer transitions 0/331 dead transitions. [2022-11-02 19:48:55,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 331 transitions, 866 flow [2022-11-02 19:48:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:55,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:55,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1042 transitions. [2022-11-02 19:48:55,640 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9594843462246777 [2022-11-02 19:48:55,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1042 transitions. [2022-11-02 19:48:55,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1042 transitions. [2022-11-02 19:48:55,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:55,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1042 transitions. [2022-11-02 19:48:55,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 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) [2022-11-02 19:48:55,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:55,647 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:55,647 INFO L175 Difference]: Start difference. First operand has 326 places, 323 transitions, 801 flow. Second operand 3 states and 1042 transitions. [2022-11-02 19:48:55,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 331 transitions, 866 flow [2022-11-02 19:48:55,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 331 transitions, 854 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 19:48:55,658 INFO L231 Difference]: Finished difference. Result has 328 places, 326 transitions, 819 flow [2022-11-02 19:48:55,659 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=819, PETRI_PLACES=328, PETRI_TRANSITIONS=326} [2022-11-02 19:48:55,659 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -2 predicate places. [2022-11-02 19:48:55,659 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 326 transitions, 819 flow [2022-11-02 19:48:55,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 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) [2022-11-02 19:48:55,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:55,660 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:55,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 19:48:55,661 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:55,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:55,662 INFO L85 PathProgramCache]: Analyzing trace with hash -280577518, now seen corresponding path program 2 times [2022-11-02 19:48:55,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:55,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823137885] [2022-11-02 19:48:55,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:55,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:55,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:55,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:55,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823137885] [2022-11-02 19:48:55,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823137885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:55,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:55,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 19:48:55,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232922474] [2022-11-02 19:48:55,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:55,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:55,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:55,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:55,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:55,741 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 362 [2022-11-02 19:48:55,742 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 326 transitions, 819 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 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) [2022-11-02 19:48:55,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:55,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 362 [2022-11-02 19:48:55,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:56,765 INFO L130 PetriNetUnfolder]: 208/5670 cut-off events. [2022-11-02 19:48:56,766 INFO L131 PetriNetUnfolder]: For 248/411 co-relation queries the response was YES. [2022-11-02 19:48:56,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6775 conditions, 5670 events. 208/5670 cut-off events. For 248/411 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 63025 event pairs, 51 based on Foata normal form. 21/5363 useless extension candidates. Maximal degree in co-relation 6290. Up to 201 conditions per place. [2022-11-02 19:48:56,824 INFO L137 encePairwiseOnDemand]: 354/362 looper letters, 24 selfloop transitions, 4 changer transitions 0/334 dead transitions. [2022-11-02 19:48:56,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 334 transitions, 903 flow [2022-11-02 19:48:56,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:56,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:56,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1039 transitions. [2022-11-02 19:48:56,832 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9567219152854513 [2022-11-02 19:48:56,832 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1039 transitions. [2022-11-02 19:48:56,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1039 transitions. [2022-11-02 19:48:56,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:56,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1039 transitions. [2022-11-02 19:48:56,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 346.3333333333333) internal successors, (1039), 3 states have internal predecessors, (1039), 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) [2022-11-02 19:48:56,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:56,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:56,841 INFO L175 Difference]: Start difference. First operand has 328 places, 326 transitions, 819 flow. Second operand 3 states and 1039 transitions. [2022-11-02 19:48:56,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 334 transitions, 903 flow [2022-11-02 19:48:56,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 334 transitions, 900 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 19:48:56,849 INFO L231 Difference]: Finished difference. Result has 331 places, 330 transitions, 864 flow [2022-11-02 19:48:56,849 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=864, PETRI_PLACES=331, PETRI_TRANSITIONS=330} [2022-11-02 19:48:56,850 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, 1 predicate places. [2022-11-02 19:48:56,850 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 330 transitions, 864 flow [2022-11-02 19:48:56,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 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) [2022-11-02 19:48:56,851 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:56,851 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:56,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 19:48:56,851 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:56,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:56,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1531620360, now seen corresponding path program 1 times [2022-11-02 19:48:56,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:56,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541525975] [2022-11-02 19:48:56,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:56,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:56,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:56,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:56,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541525975] [2022-11-02 19:48:56,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541525975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:56,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:56,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:56,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801852265] [2022-11-02 19:48:56,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:56,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:56,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:56,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:56,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:56,925 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 362 [2022-11-02 19:48:56,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 330 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 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) [2022-11-02 19:48:56,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:56,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 362 [2022-11-02 19:48:56,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:57,736 INFO L130 PetriNetUnfolder]: 160/5696 cut-off events. [2022-11-02 19:48:57,736 INFO L131 PetriNetUnfolder]: For 280/446 co-relation queries the response was YES. [2022-11-02 19:48:57,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6921 conditions, 5696 events. 160/5696 cut-off events. For 280/446 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 65778 event pairs, 64 based on Foata normal form. 0/5452 useless extension candidates. Maximal degree in co-relation 5884. Up to 188 conditions per place. [2022-11-02 19:48:57,787 INFO L137 encePairwiseOnDemand]: 359/362 looper letters, 11 selfloop transitions, 1 changer transitions 0/328 dead transitions. [2022-11-02 19:48:57,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 328 transitions, 884 flow [2022-11-02 19:48:57,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:57,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:57,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1028 transitions. [2022-11-02 19:48:57,791 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9465930018416207 [2022-11-02 19:48:57,791 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1028 transitions. [2022-11-02 19:48:57,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1028 transitions. [2022-11-02 19:48:57,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:57,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1028 transitions. [2022-11-02 19:48:57,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.6666666666667) internal successors, (1028), 3 states have internal predecessors, (1028), 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) [2022-11-02 19:48:57,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:57,797 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:57,797 INFO L175 Difference]: Start difference. First operand has 331 places, 330 transitions, 864 flow. Second operand 3 states and 1028 transitions. [2022-11-02 19:48:57,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 328 transitions, 884 flow [2022-11-02 19:48:57,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 328 transitions, 872 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-11-02 19:48:57,805 INFO L231 Difference]: Finished difference. Result has 330 places, 328 transitions, 850 flow [2022-11-02 19:48:57,805 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=330, PETRI_TRANSITIONS=328} [2022-11-02 19:48:57,806 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, 0 predicate places. [2022-11-02 19:48:57,806 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 328 transitions, 850 flow [2022-11-02 19:48:57,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 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) [2022-11-02 19:48:57,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:48:57,807 INFO L208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:57,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 19:48:57,807 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 19:48:57,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:48:57,808 INFO L85 PathProgramCache]: Analyzing trace with hash 227059829, now seen corresponding path program 1 times [2022-11-02 19:48:57,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:48:57,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981417102] [2022-11-02 19:48:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:48:57,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:48:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:48:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 19:48:57,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:48:57,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981417102] [2022-11-02 19:48:57,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981417102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:48:57,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:48:57,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:48:57,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057638536] [2022-11-02 19:48:57,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:48:57,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:48:57,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:48:57,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:48:57,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:48:57,870 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 362 [2022-11-02 19:48:57,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 328 transitions, 850 flow. Second operand has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 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) [2022-11-02 19:48:57,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:48:57,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 362 [2022-11-02 19:48:57,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:48:58,699 INFO L130 PetriNetUnfolder]: 223/4534 cut-off events. [2022-11-02 19:48:58,700 INFO L131 PetriNetUnfolder]: For 195/274 co-relation queries the response was YES. [2022-11-02 19:48:58,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5717 conditions, 4534 events. 223/4534 cut-off events. For 195/274 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 49846 event pairs, 96 based on Foata normal form. 10/4271 useless extension candidates. Maximal degree in co-relation 5603. Up to 495 conditions per place. [2022-11-02 19:48:58,745 INFO L137 encePairwiseOnDemand]: 359/362 looper letters, 0 selfloop transitions, 0 changer transitions 326/326 dead transitions. [2022-11-02 19:48:58,745 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 326 transitions, 868 flow [2022-11-02 19:48:58,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:48:58,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:48:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1027 transitions. [2022-11-02 19:48:58,749 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9456721915285451 [2022-11-02 19:48:58,749 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1027 transitions. [2022-11-02 19:48:58,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1027 transitions. [2022-11-02 19:48:58,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:48:58,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1027 transitions. [2022-11-02 19:48:58,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 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) [2022-11-02 19:48:58,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:58,765 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 362.0) internal successors, (1448), 4 states have internal predecessors, (1448), 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) [2022-11-02 19:48:58,765 INFO L175 Difference]: Start difference. First operand has 330 places, 328 transitions, 850 flow. Second operand 3 states and 1027 transitions. [2022-11-02 19:48:58,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 326 transitions, 868 flow [2022-11-02 19:48:58,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 326 transitions, 867 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 19:48:58,772 INFO L231 Difference]: Finished difference. Result has 329 places, 0 transitions, 0 flow [2022-11-02 19:48:58,773 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=362, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=329, PETRI_TRANSITIONS=0} [2022-11-02 19:48:58,774 INFO L287 CegarLoopForPetriNet]: 330 programPoint places, -1 predicate places. [2022-11-02 19:48:58,774 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 0 transitions, 0 flow [2022-11-02 19:48:58,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 341.3333333333333) internal successors, (1024), 3 states have internal predecessors, (1024), 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) [2022-11-02 19:48:58,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (52 of 53 remaining) [2022-11-02 19:48:58,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-11-02 19:48:58,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-11-02 19:48:58,778 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-11-02 19:48:58,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-11-02 19:48:58,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-11-02 19:48:58,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-11-02 19:48:58,779 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-11-02 19:48:58,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-11-02 19:48:58,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-11-02 19:48:58,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-11-02 19:48:58,780 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-11-02 19:48:58,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-11-02 19:48:58,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-11-02 19:48:58,781 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-11-02 19:48:58,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-11-02 19:48:58,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-11-02 19:48:58,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-11-02 19:48:58,782 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2022-11-02 19:48:58,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-11-02 19:48:58,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-11-02 19:48:58,783 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-11-02 19:48:58,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-11-02 19:48:58,786 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-11-02 19:48:58,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-11-02 19:48:58,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-11-02 19:48:58,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-11-02 19:48:58,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-11-02 19:48:58,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-11-02 19:48:58,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-11-02 19:48:58,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-11-02 19:48:58,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-11-02 19:48:58,788 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 53 remaining) [2022-11-02 19:48:58,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 53 remaining) [2022-11-02 19:48:58,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 53 remaining) [2022-11-02 19:48:58,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-11-02 19:48:58,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-11-02 19:48:58,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-11-02 19:48:58,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-11-02 19:48:58,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-11-02 19:48:58,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-11-02 19:48:58,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-11-02 19:48:58,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-11-02 19:48:58,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-11-02 19:48:58,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-11-02 19:48:58,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-11-02 19:48:58,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-11-02 19:48:58,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-11-02 19:48:58,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-11-02 19:48:58,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-11-02 19:48:58,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-11-02 19:48:58,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-11-02 19:48:58,793 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-11-02 19:48:58,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-02 19:48:58,793 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 19:48:58,800 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 19:48:58,800 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 19:48:58,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 07:48:58 BasicIcfg [2022-11-02 19:48:58,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 19:48:58,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 19:48:58,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 19:48:58,811 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 19:48:58,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:48:41" (3/4) ... [2022-11-02 19:48:58,814 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 19:48:58,820 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-02 19:48:58,820 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-02 19:48:58,820 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-02 19:48:58,828 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-02 19:48:58,829 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 19:48:58,829 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 19:48:58,829 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 19:48:58,887 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 19:48:58,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 19:48:58,889 INFO L158 Benchmark]: Toolchain (without parser) took 19158.16ms. Allocated memory was 115.3MB in the beginning and 960.5MB in the end (delta: 845.2MB). Free memory was 73.4MB in the beginning and 840.7MB in the end (delta: -767.3MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2022-11-02 19:48:58,889 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 115.3MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 19:48:58,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.77ms. Allocated memory is still 115.3MB. Free memory was 73.2MB in the beginning and 86.7MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 19:48:58,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.34ms. Allocated memory is still 115.3MB. Free memory was 86.7MB in the beginning and 84.2MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 19:48:58,891 INFO L158 Benchmark]: Boogie Preprocessor took 61.24ms. Allocated memory is still 115.3MB. Free memory was 84.2MB in the beginning and 82.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 19:48:58,891 INFO L158 Benchmark]: RCFGBuilder took 822.59ms. Allocated memory is still 115.3MB. Free memory was 82.1MB in the beginning and 57.4MB in the end (delta: 24.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-02 19:48:58,891 INFO L158 Benchmark]: TraceAbstraction took 17752.28ms. Allocated memory was 115.3MB in the beginning and 960.5MB in the end (delta: 845.2MB). Free memory was 57.0MB in the beginning and 843.8MB in the end (delta: -786.9MB). Peak memory consumption was 600.8MB. Max. memory is 16.1GB. [2022-11-02 19:48:58,892 INFO L158 Benchmark]: Witness Printer took 77.54ms. Allocated memory is still 960.5MB. Free memory was 843.8MB in the beginning and 840.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-02 19:48:58,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 115.3MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.77ms. Allocated memory is still 115.3MB. Free memory was 73.2MB in the beginning and 86.7MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.34ms. Allocated memory is still 115.3MB. Free memory was 86.7MB in the beginning and 84.2MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.24ms. Allocated memory is still 115.3MB. Free memory was 84.2MB in the beginning and 82.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 822.59ms. Allocated memory is still 115.3MB. Free memory was 82.1MB in the beginning and 57.4MB in the end (delta: 24.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17752.28ms. Allocated memory was 115.3MB in the beginning and 960.5MB in the end (delta: 845.2MB). Free memory was 57.0MB in the beginning and 843.8MB in the end (delta: -786.9MB). Peak memory consumption was 600.8MB. Max. memory is 16.1GB. * Witness Printer took 77.54ms. Allocated memory is still 960.5MB. Free memory was 843.8MB in the beginning and 840.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 531 locations, 53 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.5s, OverallIterations: 26, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 13.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 215 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 150 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 610 IncrementalHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 215 mSDtfsCounter, 610 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=864occurred in iteration=24, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 2698 NumberOfCodeBlocks, 2698 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2672 ConstructedInterpolants, 0 QuantifiedInterpolants, 3335 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 19:48:58,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbc5a548-35a7-4ba1-9d85-aa9a65ecd27e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE