./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a --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 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb --- 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-b5237d8 [2022-11-21 16:17:11,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:17:11,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:17:11,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:17:11,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:17:11,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:17:11,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:17:11,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:17:11,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:17:11,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:17:11,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:17:11,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:17:11,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:17:11,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:17:11,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:17:11,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:17:11,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:17:11,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:17:11,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:17:11,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:17:11,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:17:11,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:17:11,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:17:11,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:17:11,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:17:11,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:17:11,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:17:11,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:17:11,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:17:11,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:17:11,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:17:11,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:17:11,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:17:11,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:17:11,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:17:11,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:17:11,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:17:11,301 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:17:11,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:17:11,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:17:11,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:17:11,305 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:17:11,356 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:17:11,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:17:11,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:17:11,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:17:11,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:17:11,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:17:11,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:17:11,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:17:11,362 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:17:11,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:17:11,363 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:17:11,364 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:17:11,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:17:11,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:17:11,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:17:11,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:17:11,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:17:11,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:17:11,366 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:17:11,366 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:17:11,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:17:11,366 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:17:11,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:17:11,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:17:11,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:17:11,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:17:11,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:17:11,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:17:11,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:17:11,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:17:11,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:17:11,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:17:11,370 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:17:11,371 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:17:11,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:17:11,371 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_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb [2022-11-21 16:17:11,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:17:11,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:17:11,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:17:11,729 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:17:11,729 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:17:11,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2022-11-21 16:17:15,183 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:17:15,513 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:17:15,514 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2022-11-21 16:17:15,524 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/data/c3cfa7667/e6a1e664380e4f5494af919095e47c18/FLAG3b1b84b73 [2022-11-21 16:17:15,542 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/data/c3cfa7667/e6a1e664380e4f5494af919095e47c18 [2022-11-21 16:17:15,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:17:15,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:17:15,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:17:15,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:17:15,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:17:15,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:17:15" (1/1) ... [2022-11-21 16:17:15,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e2d037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:15, skipping insertion in model container [2022-11-21 16:17:15,557 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:17:15" (1/1) ... [2022-11-21 16:17:15,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:17:15,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:17:15,918 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2022-11-21 16:17:15,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:17:15,953 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:17:16,057 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2022-11-21 16:17:16,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:17:16,082 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:17:16,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16 WrapperNode [2022-11-21 16:17:16,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:17:16,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:17:16,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:17:16,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:17:16,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (1/1) ... [2022-11-21 16:17:16,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (1/1) ... [2022-11-21 16:17:16,208 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 1309 [2022-11-21 16:17:16,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:17:16,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:17:16,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:17:16,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:17:16,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (1/1) ... [2022-11-21 16:17:16,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (1/1) ... [2022-11-21 16:17:16,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (1/1) ... [2022-11-21 16:17:16,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (1/1) ... [2022-11-21 16:17:16,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (1/1) ... [2022-11-21 16:17:16,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (1/1) ... [2022-11-21 16:17:16,300 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (1/1) ... [2022-11-21 16:17:16,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (1/1) ... [2022-11-21 16:17:16,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:17:16,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:17:16,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:17:16,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:17:16,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (1/1) ... [2022-11-21 16:17:16,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:17:16,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:16,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:17:16,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6dcbd67-abb7-4521-988b-fc0658abc186/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:17:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:17:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:17:16,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:17:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:17:16,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 16:17:16,435 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 16:17:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 16:17:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 16:17:16,436 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-21 16:17:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-21 16:17:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:17:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:17:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:17:16,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:17:16,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:17:16,440 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:17:16,762 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:17:16,765 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:17:18,912 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:17:18,938 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:17:18,938 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-21 16:17:18,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:17:18 BoogieIcfgContainer [2022-11-21 16:17:18,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:17:18,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:17:18,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:17:18,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:17:18,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:17:15" (1/3) ... [2022-11-21 16:17:18,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497e3a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:17:18, skipping insertion in model container [2022-11-21 16:17:18,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:16" (2/3) ... [2022-11-21 16:17:18,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497e3a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:17:18, skipping insertion in model container [2022-11-21 16:17:18,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:17:18" (3/3) ... [2022-11-21 16:17:18,957 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2022-11-21 16:17:18,967 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:17:18,978 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:17:18,979 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 230 error locations. [2022-11-21 16:17:18,979 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:17:19,344 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-21 16:17:19,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1662 places, 1763 transitions, 3550 flow [2022-11-21 16:17:21,732 INFO L130 PetriNetUnfolder]: 111/1760 cut-off events. [2022-11-21 16:17:21,732 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 16:17:21,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1773 conditions, 1760 events. 111/1760 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 7856 event pairs, 0 based on Foata normal form. 0/1419 useless extension candidates. Maximal degree in co-relation 1382. Up to 2 conditions per place. [2022-11-21 16:17:21,866 INFO L82 GeneralOperation]: Start removeDead. Operand has 1662 places, 1763 transitions, 3550 flow [2022-11-21 16:17:21,973 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1636 places, 1734 transitions, 3486 flow [2022-11-21 16:17:21,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:17:22,007 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;@7ddb4b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:17:22,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 431 error locations. [2022-11-21 16:17:22,016 INFO L130 PetriNetUnfolder]: 0/40 cut-off events. [2022-11-21 16:17:22,016 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:17:22,016 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:22,018 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:22,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:22,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:22,030 INFO L85 PathProgramCache]: Analyzing trace with hash 677292700, now seen corresponding path program 1 times [2022-11-21 16:17:22,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:22,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270422509] [2022-11-21 16:17:22,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:22,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:22,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:22,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270422509] [2022-11-21 16:17:22,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270422509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:22,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:22,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:22,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840303596] [2022-11-21 16:17:22,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:22,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:22,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:22,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:22,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:22,417 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-21 16:17:22,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1636 places, 1734 transitions, 3486 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:22,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:22,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-21 16:17:22,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:26,535 INFO L130 PetriNetUnfolder]: 208/3994 cut-off events. [2022-11-21 16:17:26,535 INFO L131 PetriNetUnfolder]: For 56/58 co-relation queries the response was YES. [2022-11-21 16:17:26,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4143 conditions, 3994 events. 208/3994 cut-off events. For 56/58 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 27912 event pairs, 39 based on Foata normal form. 178/3377 useless extension candidates. Maximal degree in co-relation 3698. Up to 90 conditions per place. [2022-11-21 16:17:26,883 INFO L137 encePairwiseOnDemand]: 1724/1763 looper letters, 15 selfloop transitions, 2 changer transitions 6/1697 dead transitions. [2022-11-21 16:17:26,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1637 places, 1697 transitions, 3446 flow [2022-11-21 16:17:26,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:26,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:26,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5175 transitions. [2022-11-21 16:17:26,922 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9784458309699376 [2022-11-21 16:17:26,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5175 transitions. [2022-11-21 16:17:26,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5175 transitions. [2022-11-21 16:17:26,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:26,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5175 transitions. [2022-11-21 16:17:26,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1725.0) internal successors, (5175), 3 states have internal predecessors, (5175), 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) [2022-11-21 16:17:26,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:26,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:26,986 INFO L175 Difference]: Start difference. First operand has 1636 places, 1734 transitions, 3486 flow. Second operand 3 states and 5175 transitions. [2022-11-21 16:17:26,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1637 places, 1697 transitions, 3446 flow [2022-11-21 16:17:27,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1631 places, 1697 transitions, 3434 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-21 16:17:27,043 INFO L231 Difference]: Finished difference. Result has 1631 places, 1691 transitions, 3392 flow [2022-11-21 16:17:27,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3400, PETRI_DIFFERENCE_MINUEND_PLACES=1629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1697, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3392, PETRI_PLACES=1631, PETRI_TRANSITIONS=1691} [2022-11-21 16:17:27,053 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -5 predicate places. [2022-11-21 16:17:27,053 INFO L495 AbstractCegarLoop]: Abstraction has has 1631 places, 1691 transitions, 3392 flow [2022-11-21 16:17:27,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:27,057 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:27,058 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:27,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:17:27,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:27,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:27,059 INFO L85 PathProgramCache]: Analyzing trace with hash 748304386, now seen corresponding path program 1 times [2022-11-21 16:17:27,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:27,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179401661] [2022-11-21 16:17:27,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:27,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:27,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:27,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:27,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179401661] [2022-11-21 16:17:27,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179401661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:27,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:27,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:27,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735733491] [2022-11-21 16:17:27,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:27,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:27,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:27,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:27,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:27,173 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-21 16:17:27,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1631 places, 1691 transitions, 3392 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:27,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:27,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-21 16:17:27,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:30,218 INFO L130 PetriNetUnfolder]: 208/4031 cut-off events. [2022-11-21 16:17:30,218 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-21 16:17:30,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4148 conditions, 4031 events. 208/4031 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 29574 event pairs, 39 based on Foata normal form. 0/3243 useless extension candidates. Maximal degree in co-relation 4099. Up to 90 conditions per place. [2022-11-21 16:17:30,587 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1690 dead transitions. [2022-11-21 16:17:30,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1626 places, 1690 transitions, 3424 flow [2022-11-21 16:17:30,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:30,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:30,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-21 16:17:30,600 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-21 16:17:30,600 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-21 16:17:30,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-21 16:17:30,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:30,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-21 16:17:30,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 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) [2022-11-21 16:17:30,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:30,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:30,638 INFO L175 Difference]: Start difference. First operand has 1631 places, 1691 transitions, 3392 flow. Second operand 3 states and 5139 transitions. [2022-11-21 16:17:30,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1626 places, 1690 transitions, 3424 flow [2022-11-21 16:17:30,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1624 places, 1690 transitions, 3420 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:30,670 INFO L231 Difference]: Finished difference. Result has 1624 places, 1690 transitions, 3390 flow [2022-11-21 16:17:30,673 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3386, PETRI_DIFFERENCE_MINUEND_PLACES=1622, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1688, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3390, PETRI_PLACES=1624, PETRI_TRANSITIONS=1690} [2022-11-21 16:17:30,674 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -12 predicate places. [2022-11-21 16:17:30,674 INFO L495 AbstractCegarLoop]: Abstraction has has 1624 places, 1690 transitions, 3390 flow [2022-11-21 16:17:30,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:30,678 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:30,679 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:30,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:17:30,679 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:30,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:30,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1845000463, now seen corresponding path program 1 times [2022-11-21 16:17:30,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:30,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664132841] [2022-11-21 16:17:30,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:30,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:30,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:30,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:30,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664132841] [2022-11-21 16:17:30,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664132841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:30,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:30,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:30,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46112443] [2022-11-21 16:17:30,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:30,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:30,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:30,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:30,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:30,839 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-21 16:17:30,858 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1624 places, 1690 transitions, 3390 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:30,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:30,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-21 16:17:30,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:33,360 INFO L130 PetriNetUnfolder]: 144/2904 cut-off events. [2022-11-21 16:17:33,360 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-21 16:17:33,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2982 conditions, 2904 events. 144/2904 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 17970 event pairs, 21 based on Foata normal form. 0/2341 useless extension candidates. Maximal degree in co-relation 2926. Up to 63 conditions per place. [2022-11-21 16:17:33,629 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1689 dead transitions. [2022-11-21 16:17:33,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1625 places, 1689 transitions, 3422 flow [2022-11-21 16:17:33,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-21 16:17:33,642 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-21 16:17:33,642 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-21 16:17:33,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-21 16:17:33,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:33,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-21 16:17:33,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 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) [2022-11-21 16:17:33,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:33,679 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:33,680 INFO L175 Difference]: Start difference. First operand has 1624 places, 1690 transitions, 3390 flow. Second operand 3 states and 5139 transitions. [2022-11-21 16:17:33,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1625 places, 1689 transitions, 3422 flow [2022-11-21 16:17:33,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1623 places, 1689 transitions, 3418 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:33,716 INFO L231 Difference]: Finished difference. Result has 1623 places, 1689 transitions, 3388 flow [2022-11-21 16:17:33,719 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3384, PETRI_DIFFERENCE_MINUEND_PLACES=1621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1689, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1687, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3388, PETRI_PLACES=1623, PETRI_TRANSITIONS=1689} [2022-11-21 16:17:33,720 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -13 predicate places. [2022-11-21 16:17:33,721 INFO L495 AbstractCegarLoop]: Abstraction has has 1623 places, 1689 transitions, 3388 flow [2022-11-21 16:17:33,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:33,723 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:33,723 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:33,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:17:33,724 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:33,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:33,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1565213468, now seen corresponding path program 1 times [2022-11-21 16:17:33,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:33,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019649471] [2022-11-21 16:17:33,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:33,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:33,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:33,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019649471] [2022-11-21 16:17:33,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019649471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:33,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:33,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:33,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156456710] [2022-11-21 16:17:33,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:33,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:33,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:33,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:33,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:33,803 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-21 16:17:33,810 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1623 places, 1689 transitions, 3388 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:33,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:33,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-21 16:17:33,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:36,447 INFO L130 PetriNetUnfolder]: 144/2931 cut-off events. [2022-11-21 16:17:36,448 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-21 16:17:36,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3009 conditions, 2931 events. 144/2931 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 18816 event pairs, 21 based on Foata normal form. 0/2369 useless extension candidates. Maximal degree in co-relation 2946. Up to 63 conditions per place. [2022-11-21 16:17:36,608 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1688 dead transitions. [2022-11-21 16:17:36,608 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1624 places, 1688 transitions, 3420 flow [2022-11-21 16:17:36,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:36,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:36,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-21 16:17:36,621 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-21 16:17:36,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-21 16:17:36,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-21 16:17:36,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:36,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-21 16:17:36,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 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) [2022-11-21 16:17:36,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:36,657 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:36,657 INFO L175 Difference]: Start difference. First operand has 1623 places, 1689 transitions, 3388 flow. Second operand 3 states and 5139 transitions. [2022-11-21 16:17:36,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1624 places, 1688 transitions, 3420 flow [2022-11-21 16:17:36,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1622 places, 1688 transitions, 3416 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:36,695 INFO L231 Difference]: Finished difference. Result has 1622 places, 1688 transitions, 3386 flow [2022-11-21 16:17:36,697 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3382, PETRI_DIFFERENCE_MINUEND_PLACES=1620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1688, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1686, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3386, PETRI_PLACES=1622, PETRI_TRANSITIONS=1688} [2022-11-21 16:17:36,698 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -14 predicate places. [2022-11-21 16:17:36,699 INFO L495 AbstractCegarLoop]: Abstraction has has 1622 places, 1688 transitions, 3386 flow [2022-11-21 16:17:36,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:36,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:36,701 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:36,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:17:36,702 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:36,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:36,702 INFO L85 PathProgramCache]: Analyzing trace with hash -201898377, now seen corresponding path program 1 times [2022-11-21 16:17:36,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:36,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338973431] [2022-11-21 16:17:36,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:36,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:36,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:36,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338973431] [2022-11-21 16:17:36,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338973431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:36,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:36,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:36,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094612996] [2022-11-21 16:17:36,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:36,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:36,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:36,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:36,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:36,847 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-21 16:17:36,855 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1622 places, 1688 transitions, 3386 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:36,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:36,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-21 16:17:36,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:38,980 INFO L130 PetriNetUnfolder]: 139/2626 cut-off events. [2022-11-21 16:17:38,981 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-21 16:17:39,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2728 conditions, 2626 events. 139/2626 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 15985 event pairs, 39 based on Foata normal form. 0/2143 useless extension candidates. Maximal degree in co-relation 2658. Up to 90 conditions per place. [2022-11-21 16:17:39,139 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1687 dead transitions. [2022-11-21 16:17:39,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1623 places, 1687 transitions, 3418 flow [2022-11-21 16:17:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:39,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:39,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-21 16:17:39,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-21 16:17:39,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-21 16:17:39,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-21 16:17:39,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:39,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-21 16:17:39,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 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) [2022-11-21 16:17:39,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:39,178 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:39,178 INFO L175 Difference]: Start difference. First operand has 1622 places, 1688 transitions, 3386 flow. Second operand 3 states and 5139 transitions. [2022-11-21 16:17:39,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1623 places, 1687 transitions, 3418 flow [2022-11-21 16:17:39,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1621 places, 1687 transitions, 3414 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:39,207 INFO L231 Difference]: Finished difference. Result has 1621 places, 1687 transitions, 3384 flow [2022-11-21 16:17:39,210 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3380, PETRI_DIFFERENCE_MINUEND_PLACES=1619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3384, PETRI_PLACES=1621, PETRI_TRANSITIONS=1687} [2022-11-21 16:17:39,211 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -15 predicate places. [2022-11-21 16:17:39,211 INFO L495 AbstractCegarLoop]: Abstraction has has 1621 places, 1687 transitions, 3384 flow [2022-11-21 16:17:39,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:39,213 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:39,213 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:39,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:17:39,214 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:39,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:39,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1598083093, now seen corresponding path program 1 times [2022-11-21 16:17:39,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:39,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149242075] [2022-11-21 16:17:39,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:39,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:39,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:39,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:39,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149242075] [2022-11-21 16:17:39,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149242075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:39,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:39,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:39,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628520254] [2022-11-21 16:17:39,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:39,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:39,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:39,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:39,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:39,312 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1707 out of 1763 [2022-11-21 16:17:39,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1621 places, 1687 transitions, 3384 flow. Second operand has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:39,318 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:39,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1707 of 1763 [2022-11-21 16:17:39,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:41,275 INFO L130 PetriNetUnfolder]: 139/2669 cut-off events. [2022-11-21 16:17:41,275 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-21 16:17:41,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2771 conditions, 2669 events. 139/2669 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 16871 event pairs, 39 based on Foata normal form. 0/2191 useless extension candidates. Maximal degree in co-relation 2694. Up to 90 conditions per place. [2022-11-21 16:17:41,469 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 15 selfloop transitions, 2 changer transitions 0/1686 dead transitions. [2022-11-21 16:17:41,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1622 places, 1686 transitions, 3416 flow [2022-11-21 16:17:41,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:41,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:41,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5139 transitions. [2022-11-21 16:17:41,482 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9716392512762337 [2022-11-21 16:17:41,483 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5139 transitions. [2022-11-21 16:17:41,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5139 transitions. [2022-11-21 16:17:41,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:41,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5139 transitions. [2022-11-21 16:17:41,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1713.0) internal successors, (5139), 3 states have internal predecessors, (5139), 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) [2022-11-21 16:17:41,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:41,520 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:41,521 INFO L175 Difference]: Start difference. First operand has 1621 places, 1687 transitions, 3384 flow. Second operand 3 states and 5139 transitions. [2022-11-21 16:17:41,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1622 places, 1686 transitions, 3416 flow [2022-11-21 16:17:41,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1620 places, 1686 transitions, 3412 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:41,558 INFO L231 Difference]: Finished difference. Result has 1620 places, 1686 transitions, 3382 flow [2022-11-21 16:17:41,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3378, PETRI_DIFFERENCE_MINUEND_PLACES=1618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3382, PETRI_PLACES=1620, PETRI_TRANSITIONS=1686} [2022-11-21 16:17:41,564 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -16 predicate places. [2022-11-21 16:17:41,565 INFO L495 AbstractCegarLoop]: Abstraction has has 1620 places, 1686 transitions, 3382 flow [2022-11-21 16:17:41,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1708.3333333333333) internal successors, (5125), 3 states have internal predecessors, (5125), 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) [2022-11-21 16:17:41,567 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:41,567 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:41,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:17:41,568 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:41,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:41,570 INFO L85 PathProgramCache]: Analyzing trace with hash 288291829, now seen corresponding path program 1 times [2022-11-21 16:17:41,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:41,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269373717] [2022-11-21 16:17:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:41,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:41,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:41,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:41,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269373717] [2022-11-21 16:17:41,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269373717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:41,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:41,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:41,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033514365] [2022-11-21 16:17:41,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:41,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:41,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:41,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:41,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:41,691 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1683 out of 1763 [2022-11-21 16:17:41,700 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1620 places, 1686 transitions, 3382 flow. Second operand has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 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) [2022-11-21 16:17:41,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:41,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1683 of 1763 [2022-11-21 16:17:41,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:45,482 INFO L130 PetriNetUnfolder]: 348/5997 cut-off events. [2022-11-21 16:17:45,482 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 16:17:45,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6214 conditions, 5997 events. 348/5997 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 49333 event pairs, 54 based on Foata normal form. 0/4735 useless extension candidates. Maximal degree in co-relation 6130. Up to 154 conditions per place. [2022-11-21 16:17:45,847 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 39 selfloop transitions, 2 changer transitions 0/1685 dead transitions. [2022-11-21 16:17:45,848 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1621 places, 1685 transitions, 3462 flow [2022-11-21 16:17:45,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:45,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:45,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5091 transitions. [2022-11-21 16:17:45,860 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9625638116846285 [2022-11-21 16:17:45,860 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5091 transitions. [2022-11-21 16:17:45,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5091 transitions. [2022-11-21 16:17:45,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:45,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5091 transitions. [2022-11-21 16:17:45,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1697.0) internal successors, (5091), 3 states have internal predecessors, (5091), 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) [2022-11-21 16:17:45,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:45,887 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:45,887 INFO L175 Difference]: Start difference. First operand has 1620 places, 1686 transitions, 3382 flow. Second operand 3 states and 5091 transitions. [2022-11-21 16:17:45,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1621 places, 1685 transitions, 3462 flow [2022-11-21 16:17:45,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1619 places, 1685 transitions, 3458 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:45,921 INFO L231 Difference]: Finished difference. Result has 1619 places, 1685 transitions, 3380 flow [2022-11-21 16:17:45,924 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3376, PETRI_DIFFERENCE_MINUEND_PLACES=1617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1683, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3380, PETRI_PLACES=1619, PETRI_TRANSITIONS=1685} [2022-11-21 16:17:45,925 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -17 predicate places. [2022-11-21 16:17:45,925 INFO L495 AbstractCegarLoop]: Abstraction has has 1619 places, 1685 transitions, 3380 flow [2022-11-21 16:17:45,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1684.3333333333333) internal successors, (5053), 3 states have internal predecessors, (5053), 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) [2022-11-21 16:17:45,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:45,927 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:45,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:17:45,928 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:45,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:45,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1948888943, now seen corresponding path program 1 times [2022-11-21 16:17:45,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:45,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435967865] [2022-11-21 16:17:45,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:45,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:45,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:46,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:46,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:46,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435967865] [2022-11-21 16:17:46,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435967865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:46,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:46,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:46,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41119153] [2022-11-21 16:17:46,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:46,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:46,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:46,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:46,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:46,023 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-21 16:17:46,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1619 places, 1685 transitions, 3380 flow. Second operand has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 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) [2022-11-21 16:17:46,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:46,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-21 16:17:46,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:48,455 INFO L130 PetriNetUnfolder]: 241/3335 cut-off events. [2022-11-21 16:17:48,456 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-21 16:17:48,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3670 conditions, 3335 events. 241/3335 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 23143 event pairs, 90 based on Foata normal form. 0/2669 useless extension candidates. Maximal degree in co-relation 3579. Up to 236 conditions per place. [2022-11-21 16:17:48,595 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1684 dead transitions. [2022-11-21 16:17:48,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1620 places, 1684 transitions, 3490 flow [2022-11-21 16:17:48,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:48,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-21 16:17:48,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-21 16:17:48,604 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-21 16:17:48,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-21 16:17:48,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:48,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-21 16:17:48,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1687.0) internal successors, (5061), 3 states have internal predecessors, (5061), 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) [2022-11-21 16:17:48,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:48,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:48,627 INFO L175 Difference]: Start difference. First operand has 1619 places, 1685 transitions, 3380 flow. Second operand 3 states and 5061 transitions. [2022-11-21 16:17:48,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1620 places, 1684 transitions, 3490 flow [2022-11-21 16:17:48,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1618 places, 1684 transitions, 3486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:48,655 INFO L231 Difference]: Finished difference. Result has 1618 places, 1684 transitions, 3378 flow [2022-11-21 16:17:48,658 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3374, PETRI_DIFFERENCE_MINUEND_PLACES=1616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1682, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3378, PETRI_PLACES=1618, PETRI_TRANSITIONS=1684} [2022-11-21 16:17:48,658 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -18 predicate places. [2022-11-21 16:17:48,659 INFO L495 AbstractCegarLoop]: Abstraction has has 1618 places, 1684 transitions, 3378 flow [2022-11-21 16:17:48,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 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) [2022-11-21 16:17:48,661 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:48,661 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:48,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:17:48,661 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:48,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:48,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1986567560, now seen corresponding path program 1 times [2022-11-21 16:17:48,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:48,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374330941] [2022-11-21 16:17:48,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:48,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:48,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:48,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:48,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374330941] [2022-11-21 16:17:48,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374330941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:48,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:48,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:48,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707614237] [2022-11-21 16:17:48,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:48,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:48,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:48,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:48,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:48,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1680 out of 1763 [2022-11-21 16:17:48,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1618 places, 1684 transitions, 3378 flow. Second operand has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 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) [2022-11-21 16:17:48,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:48,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1680 of 1763 [2022-11-21 16:17:48,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:52,148 INFO L130 PetriNetUnfolder]: 256/4239 cut-off events. [2022-11-21 16:17:52,148 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-21 16:17:52,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4432 conditions, 4239 events. 256/4239 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 31322 event pairs, 54 based on Foata normal form. 0/3362 useless extension candidates. Maximal degree in co-relation 4334. Up to 157 conditions per place. [2022-11-21 16:17:52,835 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 42 selfloop transitions, 2 changer transitions 0/1683 dead transitions. [2022-11-21 16:17:52,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1619 places, 1683 transitions, 3464 flow [2022-11-21 16:17:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:52,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:52,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5085 transitions. [2022-11-21 16:17:52,847 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9614293817356778 [2022-11-21 16:17:52,847 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5085 transitions. [2022-11-21 16:17:52,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5085 transitions. [2022-11-21 16:17:52,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:52,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5085 transitions. [2022-11-21 16:17:52,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1695.0) internal successors, (5085), 3 states have internal predecessors, (5085), 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) [2022-11-21 16:17:52,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:52,871 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:52,871 INFO L175 Difference]: Start difference. First operand has 1618 places, 1684 transitions, 3378 flow. Second operand 3 states and 5085 transitions. [2022-11-21 16:17:52,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1619 places, 1683 transitions, 3464 flow [2022-11-21 16:17:52,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1617 places, 1683 transitions, 3460 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:52,901 INFO L231 Difference]: Finished difference. Result has 1617 places, 1683 transitions, 3376 flow [2022-11-21 16:17:52,904 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3372, PETRI_DIFFERENCE_MINUEND_PLACES=1615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1683, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3376, PETRI_PLACES=1617, PETRI_TRANSITIONS=1683} [2022-11-21 16:17:52,905 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -19 predicate places. [2022-11-21 16:17:52,905 INFO L495 AbstractCegarLoop]: Abstraction has has 1617 places, 1683 transitions, 3376 flow [2022-11-21 16:17:52,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 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) [2022-11-21 16:17:52,907 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:52,907 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:52,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:17:52,907 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:52,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:52,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1939107505, now seen corresponding path program 1 times [2022-11-21 16:17:52,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:52,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48904521] [2022-11-21 16:17:52,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:52,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:52,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:52,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:52,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48904521] [2022-11-21 16:17:52,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48904521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:52,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:52,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:52,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918589538] [2022-11-21 16:17:52,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:52,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:52,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:52,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:52,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:52,982 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-21 16:17:52,987 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1617 places, 1683 transitions, 3376 flow. Second operand has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 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) [2022-11-21 16:17:52,987 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:52,987 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-21 16:17:52,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:55,599 INFO L130 PetriNetUnfolder]: 218/2894 cut-off events. [2022-11-21 16:17:55,600 INFO L131 PetriNetUnfolder]: For 49/57 co-relation queries the response was YES. [2022-11-21 16:17:55,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3184 conditions, 2894 events. 218/2894 cut-off events. For 49/57 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 20555 event pairs, 90 based on Foata normal form. 0/2327 useless extension candidates. Maximal degree in co-relation 3079. Up to 236 conditions per place. [2022-11-21 16:17:55,804 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1682 dead transitions. [2022-11-21 16:17:55,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1618 places, 1682 transitions, 3486 flow [2022-11-21 16:17:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:55,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:55,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-21 16:17:55,814 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-21 16:17:55,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-21 16:17:55,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-21 16:17:55,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:55,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-21 16:17:55,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1687.0) internal successors, (5061), 3 states have internal predecessors, (5061), 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) [2022-11-21 16:17:55,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:55,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:55,832 INFO L175 Difference]: Start difference. First operand has 1617 places, 1683 transitions, 3376 flow. Second operand 3 states and 5061 transitions. [2022-11-21 16:17:55,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1618 places, 1682 transitions, 3486 flow [2022-11-21 16:17:55,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1616 places, 1682 transitions, 3482 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:55,858 INFO L231 Difference]: Finished difference. Result has 1616 places, 1682 transitions, 3374 flow [2022-11-21 16:17:55,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3370, PETRI_DIFFERENCE_MINUEND_PLACES=1614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1680, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3374, PETRI_PLACES=1616, PETRI_TRANSITIONS=1682} [2022-11-21 16:17:55,861 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -20 predicate places. [2022-11-21 16:17:55,861 INFO L495 AbstractCegarLoop]: Abstraction has has 1616 places, 1682 transitions, 3374 flow [2022-11-21 16:17:55,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 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) [2022-11-21 16:17:55,863 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:55,863 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:55,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:17:55,863 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:55,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:55,864 INFO L85 PathProgramCache]: Analyzing trace with hash 401581992, now seen corresponding path program 1 times [2022-11-21 16:17:55,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:55,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087145127] [2022-11-21 16:17:55,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:55,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:55,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:55,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:55,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:55,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087145127] [2022-11-21 16:17:55,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087145127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:55,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:55,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:55,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464241265] [2022-11-21 16:17:55,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:55,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:55,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:55,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:55,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:55,911 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1680 out of 1763 [2022-11-21 16:17:55,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1616 places, 1682 transitions, 3374 flow. Second operand has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 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) [2022-11-21 16:17:55,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:55,915 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1680 of 1763 [2022-11-21 16:17:55,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:57,707 INFO L130 PetriNetUnfolder]: 164/2465 cut-off events. [2022-11-21 16:17:57,708 INFO L131 PetriNetUnfolder]: For 57/59 co-relation queries the response was YES. [2022-11-21 16:17:57,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2630 conditions, 2465 events. 164/2465 cut-off events. For 57/59 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 14433 event pairs, 54 based on Foata normal form. 0/1982 useless extension candidates. Maximal degree in co-relation 2518. Up to 156 conditions per place. [2022-11-21 16:17:57,830 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 41 selfloop transitions, 2 changer transitions 0/1681 dead transitions. [2022-11-21 16:17:57,830 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1617 places, 1681 transitions, 3458 flow [2022-11-21 16:17:57,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:57,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:17:57,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5084 transitions. [2022-11-21 16:17:57,843 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9612403100775194 [2022-11-21 16:17:57,843 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5084 transitions. [2022-11-21 16:17:57,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5084 transitions. [2022-11-21 16:17:57,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:17:57,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5084 transitions. [2022-11-21 16:17:57,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1694.6666666666667) internal successors, (5084), 3 states have internal predecessors, (5084), 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) [2022-11-21 16:17:57,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:57,865 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:17:57,865 INFO L175 Difference]: Start difference. First operand has 1616 places, 1682 transitions, 3374 flow. Second operand 3 states and 5084 transitions. [2022-11-21 16:17:57,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1617 places, 1681 transitions, 3458 flow [2022-11-21 16:17:57,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1615 places, 1681 transitions, 3454 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:17:57,897 INFO L231 Difference]: Finished difference. Result has 1615 places, 1681 transitions, 3372 flow [2022-11-21 16:17:57,900 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3368, PETRI_DIFFERENCE_MINUEND_PLACES=1613, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1681, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1679, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3372, PETRI_PLACES=1615, PETRI_TRANSITIONS=1681} [2022-11-21 16:17:57,901 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -21 predicate places. [2022-11-21 16:17:57,901 INFO L495 AbstractCegarLoop]: Abstraction has has 1615 places, 1681 transitions, 3372 flow [2022-11-21 16:17:57,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1681.3333333333333) internal successors, (5044), 3 states have internal predecessors, (5044), 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) [2022-11-21 16:17:57,903 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:17:57,903 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:57,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:17:57,904 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:17:57,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:57,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1921747409, now seen corresponding path program 1 times [2022-11-21 16:17:57,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:57,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152361253] [2022-11-21 16:17:57,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:57,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:57,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:57,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:57,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152361253] [2022-11-21 16:17:57,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152361253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:57,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:57,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:57,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161089678] [2022-11-21 16:17:57,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:57,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:57,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:57,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:57,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:57,979 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1668 out of 1763 [2022-11-21 16:17:57,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1615 places, 1681 transitions, 3372 flow. Second operand has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 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) [2022-11-21 16:17:58,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:17:58,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1668 of 1763 [2022-11-21 16:17:58,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:17:59,949 INFO L130 PetriNetUnfolder]: 195/2433 cut-off events. [2022-11-21 16:17:59,949 INFO L131 PetriNetUnfolder]: For 94/96 co-relation queries the response was YES. [2022-11-21 16:18:00,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2678 conditions, 2433 events. 195/2433 cut-off events. For 94/96 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 16918 event pairs, 90 based on Foata normal form. 0/1967 useless extension candidates. Maximal degree in co-relation 2559. Up to 236 conditions per place. [2022-11-21 16:18:00,122 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 54 selfloop transitions, 2 changer transitions 0/1680 dead transitions. [2022-11-21 16:18:00,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1616 places, 1680 transitions, 3482 flow [2022-11-21 16:18:00,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:18:00,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:18:00,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5061 transitions. [2022-11-21 16:18:00,136 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9568916619398752 [2022-11-21 16:18:00,137 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5061 transitions. [2022-11-21 16:18:00,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5061 transitions. [2022-11-21 16:18:00,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:00,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5061 transitions. [2022-11-21 16:18:00,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1687.0) internal successors, (5061), 3 states have internal predecessors, (5061), 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) [2022-11-21 16:18:00,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:18:00,184 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:18:00,184 INFO L175 Difference]: Start difference. First operand has 1615 places, 1681 transitions, 3372 flow. Second operand 3 states and 5061 transitions. [2022-11-21 16:18:00,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1616 places, 1680 transitions, 3482 flow [2022-11-21 16:18:00,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1614 places, 1680 transitions, 3478 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:18:00,226 INFO L231 Difference]: Finished difference. Result has 1614 places, 1680 transitions, 3370 flow [2022-11-21 16:18:00,229 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3366, PETRI_DIFFERENCE_MINUEND_PLACES=1612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1680, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1678, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3370, PETRI_PLACES=1614, PETRI_TRANSITIONS=1680} [2022-11-21 16:18:00,232 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -22 predicate places. [2022-11-21 16:18:00,233 INFO L495 AbstractCegarLoop]: Abstraction has has 1614 places, 1680 transitions, 3370 flow [2022-11-21 16:18:00,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1669.3333333333333) internal successors, (5008), 3 states have internal predecessors, (5008), 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) [2022-11-21 16:18:00,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:00,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:18:00,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:18:00,236 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:18:00,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:00,237 INFO L85 PathProgramCache]: Analyzing trace with hash -782127175, now seen corresponding path program 1 times [2022-11-21 16:18:00,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:00,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601226376] [2022-11-21 16:18:00,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:00,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:00,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:00,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:00,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601226376] [2022-11-21 16:18:00,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601226376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:00,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:00,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:18:00,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213783740] [2022-11-21 16:18:00,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:00,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:18:00,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:00,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:18:00,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:18:00,330 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1689 out of 1763 [2022-11-21 16:18:00,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1614 places, 1680 transitions, 3370 flow. Second operand has 3 states, 3 states have (on average 1690.3333333333333) internal successors, (5071), 3 states have internal predecessors, (5071), 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) [2022-11-21 16:18:00,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:00,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1689 of 1763 [2022-11-21 16:18:00,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:07,067 INFO L130 PetriNetUnfolder]: 1081/12140 cut-off events. [2022-11-21 16:18:07,067 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-21 16:18:07,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13179 conditions, 12140 events. 1081/12140 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 132490 event pairs, 480 based on Foata normal form. 0/9565 useless extension candidates. Maximal degree in co-relation 13053. Up to 850 conditions per place. [2022-11-21 16:18:07,795 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 33 selfloop transitions, 2 changer transitions 0/1679 dead transitions. [2022-11-21 16:18:07,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1615 places, 1679 transitions, 3438 flow [2022-11-21 16:18:07,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:18:07,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:18:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5103 transitions. [2022-11-21 16:18:07,801 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9648326715825298 [2022-11-21 16:18:07,801 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5103 transitions. [2022-11-21 16:18:07,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5103 transitions. [2022-11-21 16:18:07,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:07,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5103 transitions. [2022-11-21 16:18:07,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1701.0) internal successors, (5103), 3 states have internal predecessors, (5103), 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) [2022-11-21 16:18:07,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:18:07,821 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:18:07,821 INFO L175 Difference]: Start difference. First operand has 1614 places, 1680 transitions, 3370 flow. Second operand 3 states and 5103 transitions. [2022-11-21 16:18:07,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1615 places, 1679 transitions, 3438 flow [2022-11-21 16:18:07,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1613 places, 1679 transitions, 3434 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:18:07,852 INFO L231 Difference]: Finished difference. Result has 1613 places, 1679 transitions, 3368 flow [2022-11-21 16:18:07,855 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3364, PETRI_DIFFERENCE_MINUEND_PLACES=1611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1679, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1677, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3368, PETRI_PLACES=1613, PETRI_TRANSITIONS=1679} [2022-11-21 16:18:07,855 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -23 predicate places. [2022-11-21 16:18:07,856 INFO L495 AbstractCegarLoop]: Abstraction has has 1613 places, 1679 transitions, 3368 flow [2022-11-21 16:18:07,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1690.3333333333333) internal successors, (5071), 3 states have internal predecessors, (5071), 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) [2022-11-21 16:18:07,857 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:07,858 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:18:07,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:18:07,858 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:18:07,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:07,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1621979617, now seen corresponding path program 1 times [2022-11-21 16:18:07,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:07,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118963417] [2022-11-21 16:18:07,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:07,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:07,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:07,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118963417] [2022-11-21 16:18:07,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118963417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:07,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:07,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:18:07,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376936353] [2022-11-21 16:18:07,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:07,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:18:07,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:07,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:18:07,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:18:07,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1689 out of 1763 [2022-11-21 16:18:07,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1613 places, 1679 transitions, 3368 flow. Second operand has 3 states, 3 states have (on average 1690.3333333333333) internal successors, (5071), 3 states have internal predecessors, (5071), 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) [2022-11-21 16:18:07,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:07,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1689 of 1763 [2022-11-21 16:18:07,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:18:16,889 INFO L130 PetriNetUnfolder]: 742/10414 cut-off events. [2022-11-21 16:18:16,889 INFO L131 PetriNetUnfolder]: For 40/42 co-relation queries the response was YES. [2022-11-21 16:18:17,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10906 conditions, 10414 events. 742/10414 cut-off events. For 40/42 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 107243 event pairs, 192 based on Foata normal form. 0/8162 useless extension candidates. Maximal degree in co-relation 10774. Up to 459 conditions per place. [2022-11-21 16:18:17,635 INFO L137 encePairwiseOnDemand]: 1760/1763 looper letters, 33 selfloop transitions, 2 changer transitions 0/1678 dead transitions. [2022-11-21 16:18:17,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1614 places, 1678 transitions, 3436 flow [2022-11-21 16:18:17,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:18:17,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:18:17,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5103 transitions. [2022-11-21 16:18:17,640 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9648326715825298 [2022-11-21 16:18:17,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 5103 transitions. [2022-11-21 16:18:17,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 5103 transitions. [2022-11-21 16:18:17,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:18:17,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 5103 transitions. [2022-11-21 16:18:17,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1701.0) internal successors, (5103), 3 states have internal predecessors, (5103), 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) [2022-11-21 16:18:17,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:18:17,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1763.0) internal successors, (7052), 4 states have internal predecessors, (7052), 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) [2022-11-21 16:18:17,665 INFO L175 Difference]: Start difference. First operand has 1613 places, 1679 transitions, 3368 flow. Second operand 3 states and 5103 transitions. [2022-11-21 16:18:17,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1614 places, 1678 transitions, 3436 flow [2022-11-21 16:18:17,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1612 places, 1678 transitions, 3432 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:18:17,699 INFO L231 Difference]: Finished difference. Result has 1612 places, 1678 transitions, 3366 flow [2022-11-21 16:18:17,701 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1763, PETRI_DIFFERENCE_MINUEND_FLOW=3362, PETRI_DIFFERENCE_MINUEND_PLACES=1610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1678, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3366, PETRI_PLACES=1612, PETRI_TRANSITIONS=1678} [2022-11-21 16:18:17,702 INFO L288 CegarLoopForPetriNet]: 1636 programPoint places, -24 predicate places. [2022-11-21 16:18:17,702 INFO L495 AbstractCegarLoop]: Abstraction has has 1612 places, 1678 transitions, 3366 flow [2022-11-21 16:18:17,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1690.3333333333333) internal successors, (5071), 3 states have internal predecessors, (5071), 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) [2022-11-21 16:18:17,703 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:18:17,704 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:18:17,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:18:17,704 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 427 more)] === [2022-11-21 16:18:17,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:18:17,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1041891592, now seen corresponding path program 1 times [2022-11-21 16:18:17,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:18:17,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075276603] [2022-11-21 16:18:17,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:18:17,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:18:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:18:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:18:17,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:18:17,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075276603] [2022-11-21 16:18:17,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075276603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:18:17,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:18:17,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:18:17,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151665057] [2022-11-21 16:18:17,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:18:17,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:18:17,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:18:17,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:18:17,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:18:17,768 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1689 out of 1763 [2022-11-21 16:18:17,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1612 places, 1678 transitions, 3366 flow. Second operand has 3 states, 3 states have (on average 1690.3333333333333) internal successors, (5071), 3 states have internal predecessors, (5071), 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) [2022-11-21 16:18:17,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:18:17,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1689 of 1763 [2022-11-21 16:18:17,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand