./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:16:10,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:16:10,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:16:10,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:16:10,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:16:10,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:16:10,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:16:10,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:16:10,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:16:10,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:16:10,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:16:10,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:16:10,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:16:10,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:16:10,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:16:10,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:16:10,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:16:10,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:16:10,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:16:10,263 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:16:10,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:16:10,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:16:10,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:16:10,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:16:10,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:16:10,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:16:10,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:16:10,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:16:10,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:16:10,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:16:10,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:16:10,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:16:10,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:16:10,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:16:10,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:16:10,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:16:10,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:16:10,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:16:10,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:16:10,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:16:10,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:16:10,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:16:10,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:16:10,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:16:10,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:16:10,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:16:10,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:16:10,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:16:10,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:16:10,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:16:10,309 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:16:10,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:16:10,309 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:16:10,309 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:16:10,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:16:10,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:16:10,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:16:10,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:16:10,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:16:10,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:16:10,311 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:16:10,311 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:16:10,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:16:10,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:16:10,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:16:10,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:16:10,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:16:10,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:16:10,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:16:10,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:16:10,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:16:10,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:16:10,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:16:10,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:16:10,314 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:16:10,314 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:16:10,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:16:10,315 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_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-11-16 11:16:10,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:16:10,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:16:10,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:16:10,658 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:16:10,659 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:16:10,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-16 11:16:10,732 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/data/47b7242d0/bc0c0dc4f0b140d79877ee1556e00d4b/FLAGcc73fb09f [2022-11-16 11:16:11,260 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:16:11,261 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-16 11:16:11,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/data/47b7242d0/bc0c0dc4f0b140d79877ee1556e00d4b/FLAGcc73fb09f [2022-11-16 11:16:11,536 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/data/47b7242d0/bc0c0dc4f0b140d79877ee1556e00d4b [2022-11-16 11:16:11,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:16:11,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:16:11,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:16:11,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:16:11,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:16:11,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:16:11" (1/1) ... [2022-11-16 11:16:11,556 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5326b862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:11, skipping insertion in model container [2022-11-16 11:16:11,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:16:11" (1/1) ... [2022-11-16 11:16:11,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:16:11,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:16:12,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:16:12,308 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:16:12,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:16:12,452 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:16:12,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12 WrapperNode [2022-11-16 11:16:12,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:16:12,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:16:12,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:16:12,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:16:12,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (1/1) ... [2022-11-16 11:16:12,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (1/1) ... [2022-11-16 11:16:12,551 INFO L138 Inliner]: procedures = 368, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 177 [2022-11-16 11:16:12,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:16:12,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:16:12,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:16:12,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:16:12,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (1/1) ... [2022-11-16 11:16:12,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (1/1) ... [2022-11-16 11:16:12,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (1/1) ... [2022-11-16 11:16:12,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (1/1) ... [2022-11-16 11:16:12,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (1/1) ... [2022-11-16 11:16:12,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (1/1) ... [2022-11-16 11:16:12,616 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (1/1) ... [2022-11-16 11:16:12,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (1/1) ... [2022-11-16 11:16:12,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:16:12,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:16:12,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:16:12,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:16:12,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (1/1) ... [2022-11-16 11:16:12,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:16:12,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:16:12,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:16:12,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c06a3e3f-8f4a-41f9-a623-90f7c1d0de16/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:16:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:16:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:16:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:16:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:16:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:16:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:16:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:16:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:16:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:16:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:16:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:16:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:16:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:16:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:16:12,737 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:16:12,903 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:16:12,906 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:16:13,481 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:16:13,490 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:16:13,491 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:16:13,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:16:13 BoogieIcfgContainer [2022-11-16 11:16:13,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:16:13,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:16:13,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:16:13,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:16:13,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:16:11" (1/3) ... [2022-11-16 11:16:13,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f631a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:16:13, skipping insertion in model container [2022-11-16 11:16:13,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:12" (2/3) ... [2022-11-16 11:16:13,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f631a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:16:13, skipping insertion in model container [2022-11-16 11:16:13,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:16:13" (3/3) ... [2022-11-16 11:16:13,508 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-11-16 11:16:13,521 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:16:13,532 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:16:13,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-16 11:16:13,532 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:16:13,639 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:16:13,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 209 transitions, 423 flow [2022-11-16 11:16:13,802 INFO L130 PetriNetUnfolder]: 0/208 cut-off events. [2022-11-16 11:16:13,802 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:16:13,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 208 events. 0/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-16 11:16:13,806 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 209 transitions, 423 flow [2022-11-16 11:16:13,812 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 212 places, 208 transitions, 419 flow [2022-11-16 11:16:13,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:16:13,828 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;@22f6236b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:16:13,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-16 11:16:13,839 INFO L130 PetriNetUnfolder]: 0/45 cut-off events. [2022-11-16 11:16:13,840 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:16:13,840 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:13,841 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] [2022-11-16 11:16:13,841 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:13,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:13,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1671993755, now seen corresponding path program 1 times [2022-11-16 11:16:13,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:13,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47479109] [2022-11-16 11:16:13,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:13,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:14,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:14,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:14,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47479109] [2022-11-16 11:16:14,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47479109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:14,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:14,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:16:14,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750884117] [2022-11-16 11:16:14,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:14,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:16:14,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:14,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:16:14,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:16:14,792 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 209 [2022-11-16 11:16:14,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 208 transitions, 419 flow. Second operand has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:14,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:14,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 209 [2022-11-16 11:16:14,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:15,469 INFO L130 PetriNetUnfolder]: 360/1271 cut-off events. [2022-11-16 11:16:15,470 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:16:15,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2079 conditions, 1271 events. 360/1271 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6559 event pairs, 360 based on Foata normal form. 0/1102 useless extension candidates. Maximal degree in co-relation 1926. Up to 794 conditions per place. [2022-11-16 11:16:15,490 INFO L137 encePairwiseOnDemand]: 197/209 looper letters, 73 selfloop transitions, 10 changer transitions 0/206 dead transitions. [2022-11-16 11:16:15,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 206 transitions, 581 flow [2022-11-16 11:16:15,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:16:15,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:16:15,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 829 transitions. [2022-11-16 11:16:15,517 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6610845295055822 [2022-11-16 11:16:15,518 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 829 transitions. [2022-11-16 11:16:15,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 829 transitions. [2022-11-16 11:16:15,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:15,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 829 transitions. [2022-11-16 11:16:15,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:15,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:15,543 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:15,544 INFO L175 Difference]: Start difference. First operand has 212 places, 208 transitions, 419 flow. Second operand 6 states and 829 transitions. [2022-11-16 11:16:15,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 206 transitions, 581 flow [2022-11-16 11:16:15,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 206 transitions, 580 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:16:15,556 INFO L231 Difference]: Finished difference. Result has 214 places, 206 transitions, 434 flow [2022-11-16 11:16:15,559 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=434, PETRI_PLACES=214, PETRI_TRANSITIONS=206} [2022-11-16 11:16:15,566 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 2 predicate places. [2022-11-16 11:16:15,566 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 206 transitions, 434 flow [2022-11-16 11:16:15,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:15,568 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:15,568 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] [2022-11-16 11:16:15,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:16:15,569 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:15,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:15,572 INFO L85 PathProgramCache]: Analyzing trace with hash -43577554, now seen corresponding path program 1 times [2022-11-16 11:16:15,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:15,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535455084] [2022-11-16 11:16:15,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:15,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:16,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:16,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:16,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535455084] [2022-11-16 11:16:16,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535455084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:16,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:16,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:16:16,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245372604] [2022-11-16 11:16:16,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:16,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:16:16,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:16,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:16:16,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:16:16,062 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 209 [2022-11-16 11:16:16,063 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 206 transitions, 434 flow. Second operand has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,063 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:16,063 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 209 [2022-11-16 11:16:16,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:16,477 INFO L130 PetriNetUnfolder]: 360/1269 cut-off events. [2022-11-16 11:16:16,478 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:16:16,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 1269 events. 360/1269 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6583 event pairs, 360 based on Foata normal form. 0/1102 useless extension candidates. Maximal degree in co-relation 1968. Up to 792 conditions per place. [2022-11-16 11:16:16,487 INFO L137 encePairwiseOnDemand]: 197/209 looper letters, 71 selfloop transitions, 10 changer transitions 0/204 dead transitions. [2022-11-16 11:16:16,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 204 transitions, 592 flow [2022-11-16 11:16:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:16:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:16:16,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 827 transitions. [2022-11-16 11:16:16,490 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6594896331738437 [2022-11-16 11:16:16,490 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 827 transitions. [2022-11-16 11:16:16,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 827 transitions. [2022-11-16 11:16:16,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:16,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 827 transitions. [2022-11-16 11:16:16,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.83333333333334) internal successors, (827), 6 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,497 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,497 INFO L175 Difference]: Start difference. First operand has 214 places, 206 transitions, 434 flow. Second operand 6 states and 827 transitions. [2022-11-16 11:16:16,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 204 transitions, 592 flow [2022-11-16 11:16:16,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 204 transitions, 572 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:16:16,508 INFO L231 Difference]: Finished difference. Result has 212 places, 204 transitions, 430 flow [2022-11-16 11:16:16,509 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=212, PETRI_TRANSITIONS=204} [2022-11-16 11:16:16,509 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 0 predicate places. [2022-11-16 11:16:16,510 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 204 transitions, 430 flow [2022-11-16 11:16:16,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,511 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:16,511 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] [2022-11-16 11:16:16,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:16:16,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:16,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:16,514 INFO L85 PathProgramCache]: Analyzing trace with hash -479096798, now seen corresponding path program 1 times [2022-11-16 11:16:16,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:16,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959382408] [2022-11-16 11:16:16,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:16,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:16,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:16,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:16,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959382408] [2022-11-16 11:16:16,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959382408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:16,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:16,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:16:16,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172789435] [2022-11-16 11:16:16,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:16,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:16:16,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:16,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:16:16,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:16:16,595 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 209 [2022-11-16 11:16:16,595 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 204 transitions, 430 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:16,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 209 [2022-11-16 11:16:16,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:16,669 INFO L130 PetriNetUnfolder]: 18/354 cut-off events. [2022-11-16 11:16:16,669 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:16:16,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 354 events. 18/354 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 806 event pairs, 18 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 318. Up to 56 conditions per place. [2022-11-16 11:16:16,671 INFO L137 encePairwiseOnDemand]: 206/209 looper letters, 19 selfloop transitions, 2 changer transitions 0/203 dead transitions. [2022-11-16 11:16:16,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 203 transitions, 470 flow [2022-11-16 11:16:16,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:16:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:16:16,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2022-11-16 11:16:16,674 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9298245614035088 [2022-11-16 11:16:16,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 583 transitions. [2022-11-16 11:16:16,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions. [2022-11-16 11:16:16,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:16,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions. [2022-11-16 11:16:16,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,678 INFO L175 Difference]: Start difference. First operand has 212 places, 204 transitions, 430 flow. Second operand 3 states and 583 transitions. [2022-11-16 11:16:16,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 203 transitions, 470 flow [2022-11-16 11:16:16,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 203 transitions, 450 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:16:16,683 INFO L231 Difference]: Finished difference. Result has 208 places, 203 transitions, 412 flow [2022-11-16 11:16:16,683 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=208, PETRI_TRANSITIONS=203} [2022-11-16 11:16:16,684 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, -4 predicate places. [2022-11-16 11:16:16,684 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 203 transitions, 412 flow [2022-11-16 11:16:16,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,685 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:16,685 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] [2022-11-16 11:16:16,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:16:16,686 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:16,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:16,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1298097445, now seen corresponding path program 1 times [2022-11-16 11:16:16,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:16,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849492002] [2022-11-16 11:16:16,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:16,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:16,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:16,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:16,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849492002] [2022-11-16 11:16:16,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849492002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:16,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:16,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:16:16,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449996253] [2022-11-16 11:16:16,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:16,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:16:16,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:16,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:16:16,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:16:16,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 209 [2022-11-16 11:16:16,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 203 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,759 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:16,759 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 209 [2022-11-16 11:16:16,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:16,817 INFO L130 PetriNetUnfolder]: 8/299 cut-off events. [2022-11-16 11:16:16,817 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:16:16,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 299 events. 8/299 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 491 event pairs, 8 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 265. Up to 27 conditions per place. [2022-11-16 11:16:16,818 INFO L137 encePairwiseOnDemand]: 203/209 looper letters, 12 selfloop transitions, 1 changer transitions 0/198 dead transitions. [2022-11-16 11:16:16,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 198 transitions, 428 flow [2022-11-16 11:16:16,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:16:16,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:16:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2022-11-16 11:16:16,821 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.937799043062201 [2022-11-16 11:16:16,821 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 588 transitions. [2022-11-16 11:16:16,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 588 transitions. [2022-11-16 11:16:16,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:16,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 588 transitions. [2022-11-16 11:16:16,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,825 INFO L175 Difference]: Start difference. First operand has 208 places, 203 transitions, 412 flow. Second operand 3 states and 588 transitions. [2022-11-16 11:16:16,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 198 transitions, 428 flow [2022-11-16 11:16:16,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 198 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:16:16,829 INFO L231 Difference]: Finished difference. Result has 203 places, 198 transitions, 400 flow [2022-11-16 11:16:16,830 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=400, PETRI_PLACES=203, PETRI_TRANSITIONS=198} [2022-11-16 11:16:16,830 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, -9 predicate places. [2022-11-16 11:16:16,831 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 198 transitions, 400 flow [2022-11-16 11:16:16,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:16,831 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:16,831 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] [2022-11-16 11:16:16,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:16:16,832 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:16,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:16,832 INFO L85 PathProgramCache]: Analyzing trace with hash 380722992, now seen corresponding path program 1 times [2022-11-16 11:16:16,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:16,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707315006] [2022-11-16 11:16:16,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:16,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:17,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:17,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707315006] [2022-11-16 11:16:17,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707315006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:17,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:17,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:16:17,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567840057] [2022-11-16 11:16:17,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:17,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:16:17,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:17,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:16:17,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:16:17,366 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 209 [2022-11-16 11:16:17,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 198 transitions, 400 flow. Second operand has 6 states, 6 states have (on average 131.16666666666666) internal successors, (787), 6 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:17,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:17,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 209 [2022-11-16 11:16:17,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:17,746 INFO L130 PetriNetUnfolder]: 416/1347 cut-off events. [2022-11-16 11:16:17,746 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:16:17,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2263 conditions, 1347 events. 416/1347 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6903 event pairs, 416 based on Foata normal form. 0/1201 useless extension candidates. Maximal degree in co-relation 2182. Up to 906 conditions per place. [2022-11-16 11:16:17,753 INFO L137 encePairwiseOnDemand]: 203/209 looper letters, 73 selfloop transitions, 5 changer transitions 0/197 dead transitions. [2022-11-16 11:16:17,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 197 transitions, 554 flow [2022-11-16 11:16:17,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:16:17,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:16:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 835 transitions. [2022-11-16 11:16:17,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6658692185007975 [2022-11-16 11:16:17,756 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 835 transitions. [2022-11-16 11:16:17,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 835 transitions. [2022-11-16 11:16:17,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:17,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 835 transitions. [2022-11-16 11:16:17,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:17,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:17,762 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:17,762 INFO L175 Difference]: Start difference. First operand has 203 places, 198 transitions, 400 flow. Second operand 6 states and 835 transitions. [2022-11-16 11:16:17,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 197 transitions, 554 flow [2022-11-16 11:16:17,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 197 transitions, 553 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:16:17,767 INFO L231 Difference]: Finished difference. Result has 206 places, 197 transitions, 407 flow [2022-11-16 11:16:17,767 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=407, PETRI_PLACES=206, PETRI_TRANSITIONS=197} [2022-11-16 11:16:17,768 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, -6 predicate places. [2022-11-16 11:16:17,768 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 197 transitions, 407 flow [2022-11-16 11:16:17,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.16666666666666) internal successors, (787), 6 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:17,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:17,769 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] [2022-11-16 11:16:17,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:16:17,770 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:17,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:17,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1045888503, now seen corresponding path program 1 times [2022-11-16 11:16:17,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:17,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702540878] [2022-11-16 11:16:17,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:17,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:18,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:18,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:18,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702540878] [2022-11-16 11:16:18,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702540878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:18,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:18,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:16:18,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513581059] [2022-11-16 11:16:18,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:18,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:16:18,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:18,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:16:18,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:16:18,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 209 [2022-11-16 11:16:18,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 197 transitions, 407 flow. Second operand has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:18,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:18,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 209 [2022-11-16 11:16:18,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:19,410 INFO L130 PetriNetUnfolder]: 748/2362 cut-off events. [2022-11-16 11:16:19,411 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 11:16:19,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3995 conditions, 2362 events. 748/2362 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 14874 event pairs, 75 based on Foata normal form. 0/2116 useless extension candidates. Maximal degree in co-relation 3915. Up to 781 conditions per place. [2022-11-16 11:16:19,424 INFO L137 encePairwiseOnDemand]: 181/209 looper letters, 161 selfloop transitions, 70 changer transitions 0/353 dead transitions. [2022-11-16 11:16:19,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 353 transitions, 1181 flow [2022-11-16 11:16:19,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:16:19,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:16:19,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1007 transitions. [2022-11-16 11:16:19,428 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.803030303030303 [2022-11-16 11:16:19,428 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1007 transitions. [2022-11-16 11:16:19,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1007 transitions. [2022-11-16 11:16:19,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:19,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1007 transitions. [2022-11-16 11:16:19,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:19,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:19,436 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:19,436 INFO L175 Difference]: Start difference. First operand has 206 places, 197 transitions, 407 flow. Second operand 6 states and 1007 transitions. [2022-11-16 11:16:19,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 353 transitions, 1181 flow [2022-11-16 11:16:19,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 353 transitions, 1171 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:16:19,446 INFO L231 Difference]: Finished difference. Result has 210 places, 267 transitions, 875 flow [2022-11-16 11:16:19,446 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=875, PETRI_PLACES=210, PETRI_TRANSITIONS=267} [2022-11-16 11:16:19,449 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, -2 predicate places. [2022-11-16 11:16:19,449 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 267 transitions, 875 flow [2022-11-16 11:16:19,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.0) internal successors, (810), 6 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:19,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:19,450 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] [2022-11-16 11:16:19,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:16:19,451 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:19,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:19,452 INFO L85 PathProgramCache]: Analyzing trace with hash -677895904, now seen corresponding path program 1 times [2022-11-16 11:16:19,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:19,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611819191] [2022-11-16 11:16:19,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:19,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:20,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:20,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:20,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611819191] [2022-11-16 11:16:20,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611819191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:20,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:20,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:16:20,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66916204] [2022-11-16 11:16:20,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:20,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:16:20,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:20,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:16:20,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:16:20,119 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 209 [2022-11-16 11:16:20,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 267 transitions, 875 flow. Second operand has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:20,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:20,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 209 [2022-11-16 11:16:20,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:20,903 INFO L130 PetriNetUnfolder]: 836/2671 cut-off events. [2022-11-16 11:16:20,903 INFO L131 PetriNetUnfolder]: For 870/870 co-relation queries the response was YES. [2022-11-16 11:16:20,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5904 conditions, 2671 events. 836/2671 cut-off events. For 870/870 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 17302 event pairs, 379 based on Foata normal form. 0/2488 useless extension candidates. Maximal degree in co-relation 5822. Up to 1690 conditions per place. [2022-11-16 11:16:20,922 INFO L137 encePairwiseOnDemand]: 194/209 looper letters, 156 selfloop transitions, 48 changer transitions 0/327 dead transitions. [2022-11-16 11:16:20,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 327 transitions, 1499 flow [2022-11-16 11:16:20,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:16:20,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:16:20,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 907 transitions. [2022-11-16 11:16:20,926 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7232854864433812 [2022-11-16 11:16:20,926 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 907 transitions. [2022-11-16 11:16:20,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 907 transitions. [2022-11-16 11:16:20,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:20,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 907 transitions. [2022-11-16 11:16:20,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 151.16666666666666) internal successors, (907), 6 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:20,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:20,933 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:20,933 INFO L175 Difference]: Start difference. First operand has 210 places, 267 transitions, 875 flow. Second operand 6 states and 907 transitions. [2022-11-16 11:16:20,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 327 transitions, 1499 flow [2022-11-16 11:16:20,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 327 transitions, 1499 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:16:20,951 INFO L231 Difference]: Finished difference. Result has 220 places, 310 transitions, 1263 flow [2022-11-16 11:16:20,952 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=875, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1263, PETRI_PLACES=220, PETRI_TRANSITIONS=310} [2022-11-16 11:16:20,952 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 8 predicate places. [2022-11-16 11:16:20,953 INFO L495 AbstractCegarLoop]: Abstraction has has 220 places, 310 transitions, 1263 flow [2022-11-16 11:16:20,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:20,953 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:20,954 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] [2022-11-16 11:16:20,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:16:20,954 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:20,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:20,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1148431168, now seen corresponding path program 1 times [2022-11-16 11:16:20,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:20,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037344609] [2022-11-16 11:16:20,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:20,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:21,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:21,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:21,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037344609] [2022-11-16 11:16:21,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037344609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:21,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:21,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:16:21,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943945656] [2022-11-16 11:16:21,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:21,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:16:21,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:21,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:16:21,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:16:21,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 209 [2022-11-16 11:16:21,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 310 transitions, 1263 flow. Second operand has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:21,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:21,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 209 [2022-11-16 11:16:21,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:22,578 INFO L130 PetriNetUnfolder]: 1029/3400 cut-off events. [2022-11-16 11:16:22,579 INFO L131 PetriNetUnfolder]: For 2067/2108 co-relation queries the response was YES. [2022-11-16 11:16:22,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8414 conditions, 3400 events. 1029/3400 cut-off events. For 2067/2108 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 24287 event pairs, 205 based on Foata normal form. 0/3270 useless extension candidates. Maximal degree in co-relation 8324. Up to 1659 conditions per place. [2022-11-16 11:16:22,603 INFO L137 encePairwiseOnDemand]: 187/209 looper letters, 262 selfloop transitions, 135 changer transitions 4/525 dead transitions. [2022-11-16 11:16:22,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 525 transitions, 3157 flow [2022-11-16 11:16:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:16:22,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:16:22,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 974 transitions. [2022-11-16 11:16:22,607 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7767145135566188 [2022-11-16 11:16:22,607 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 974 transitions. [2022-11-16 11:16:22,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 974 transitions. [2022-11-16 11:16:22,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:22,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 974 transitions. [2022-11-16 11:16:22,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.33333333333334) internal successors, (974), 6 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:22,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:22,614 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:22,614 INFO L175 Difference]: Start difference. First operand has 220 places, 310 transitions, 1263 flow. Second operand 6 states and 974 transitions. [2022-11-16 11:16:22,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 525 transitions, 3157 flow [2022-11-16 11:16:22,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 525 transitions, 3139 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-16 11:16:22,639 INFO L231 Difference]: Finished difference. Result has 230 places, 440 transitions, 2603 flow [2022-11-16 11:16:22,639 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=1245, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2603, PETRI_PLACES=230, PETRI_TRANSITIONS=440} [2022-11-16 11:16:22,640 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 18 predicate places. [2022-11-16 11:16:22,640 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 440 transitions, 2603 flow [2022-11-16 11:16:22,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:22,641 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:22,642 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] [2022-11-16 11:16:22,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:16:22,642 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:22,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:22,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1966240912, now seen corresponding path program 1 times [2022-11-16 11:16:22,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:22,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840007528] [2022-11-16 11:16:22,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:22,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:23,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:23,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:23,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840007528] [2022-11-16 11:16:23,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840007528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:23,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:23,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:16:23,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054452917] [2022-11-16 11:16:23,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:23,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:16:23,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:23,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:16:23,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:16:23,641 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-16 11:16:23,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 440 transitions, 2603 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:23,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:23,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-16 11:16:23,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:27,316 INFO L130 PetriNetUnfolder]: 1672/5541 cut-off events. [2022-11-16 11:16:27,317 INFO L131 PetriNetUnfolder]: For 6163/6245 co-relation queries the response was YES. [2022-11-16 11:16:27,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15830 conditions, 5541 events. 1672/5541 cut-off events. For 6163/6245 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 45687 event pairs, 286 based on Foata normal form. 26/5421 useless extension candidates. Maximal degree in co-relation 15728. Up to 1193 conditions per place. [2022-11-16 11:16:27,378 INFO L137 encePairwiseOnDemand]: 172/209 looper letters, 620 selfloop transitions, 192 changer transitions 6/923 dead transitions. [2022-11-16 11:16:27,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 923 transitions, 7287 flow [2022-11-16 11:16:27,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 11:16:27,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 11:16:27,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2670 transitions. [2022-11-16 11:16:27,388 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.638755980861244 [2022-11-16 11:16:27,389 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2670 transitions. [2022-11-16 11:16:27,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2670 transitions. [2022-11-16 11:16:27,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:27,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2670 transitions. [2022-11-16 11:16:27,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 133.5) internal successors, (2670), 20 states have internal predecessors, (2670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:27,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:27,411 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 209.0) internal successors, (4389), 21 states have internal predecessors, (4389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:27,411 INFO L175 Difference]: Start difference. First operand has 230 places, 440 transitions, 2603 flow. Second operand 20 states and 2670 transitions. [2022-11-16 11:16:27,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 923 transitions, 7287 flow [2022-11-16 11:16:27,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 923 transitions, 7215 flow, removed 36 selfloop flow, removed 0 redundant places. [2022-11-16 11:16:27,501 INFO L231 Difference]: Finished difference. Result has 265 places, 537 transitions, 4261 flow [2022-11-16 11:16:27,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=2567, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4261, PETRI_PLACES=265, PETRI_TRANSITIONS=537} [2022-11-16 11:16:27,504 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 53 predicate places. [2022-11-16 11:16:27,504 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 537 transitions, 4261 flow [2022-11-16 11:16:27,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:27,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:27,505 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] [2022-11-16 11:16:27,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:16:27,506 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:27,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:27,507 INFO L85 PathProgramCache]: Analyzing trace with hash -481820612, now seen corresponding path program 2 times [2022-11-16 11:16:27,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:27,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253986146] [2022-11-16 11:16:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:27,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:28,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:28,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253986146] [2022-11-16 11:16:28,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253986146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:28,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:28,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:16:28,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693931750] [2022-11-16 11:16:28,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:28,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:16:28,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:28,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:16:28,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:16:28,560 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-16 11:16:28,562 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 537 transitions, 4261 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:28,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:28,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-16 11:16:28,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:31,891 INFO L130 PetriNetUnfolder]: 1848/6139 cut-off events. [2022-11-16 11:16:31,893 INFO L131 PetriNetUnfolder]: For 10510/10665 co-relation queries the response was YES. [2022-11-16 11:16:31,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19669 conditions, 6139 events. 1848/6139 cut-off events. For 10510/10665 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 51322 event pairs, 277 based on Foata normal form. 44/5991 useless extension candidates. Maximal degree in co-relation 19547. Up to 2087 conditions per place. [2022-11-16 11:16:31,958 INFO L137 encePairwiseOnDemand]: 183/209 looper letters, 722 selfloop transitions, 141 changer transitions 6/974 dead transitions. [2022-11-16 11:16:31,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 974 transitions, 8887 flow [2022-11-16 11:16:31,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-16 11:16:31,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-16 11:16:31,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3650 transitions. [2022-11-16 11:16:31,969 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6022108562943409 [2022-11-16 11:16:31,969 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3650 transitions. [2022-11-16 11:16:31,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3650 transitions. [2022-11-16 11:16:31,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:31,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3650 transitions. [2022-11-16 11:16:31,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 125.86206896551724) internal successors, (3650), 29 states have internal predecessors, (3650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:31,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 209.0) internal successors, (6270), 30 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:31,993 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 209.0) internal successors, (6270), 30 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:31,993 INFO L175 Difference]: Start difference. First operand has 265 places, 537 transitions, 4261 flow. Second operand 29 states and 3650 transitions. [2022-11-16 11:16:31,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 974 transitions, 8887 flow [2022-11-16 11:16:32,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 974 transitions, 8877 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-11-16 11:16:32,207 INFO L231 Difference]: Finished difference. Result has 299 places, 604 transitions, 5263 flow [2022-11-16 11:16:32,209 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=4251, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=5263, PETRI_PLACES=299, PETRI_TRANSITIONS=604} [2022-11-16 11:16:32,209 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 87 predicate places. [2022-11-16 11:16:32,210 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 604 transitions, 5263 flow [2022-11-16 11:16:32,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:32,213 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:32,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:16:32,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:16:32,213 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:32,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:32,214 INFO L85 PathProgramCache]: Analyzing trace with hash 224396076, now seen corresponding path program 3 times [2022-11-16 11:16:32,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:32,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207787391] [2022-11-16 11:16:32,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:32,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:33,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:33,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:33,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207787391] [2022-11-16 11:16:33,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207787391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:33,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:33,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:16:33,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663169107] [2022-11-16 11:16:33,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:33,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:16:33,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:33,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:16:33,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:16:33,245 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-16 11:16:33,256 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 604 transitions, 5263 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:33,256 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:33,256 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-16 11:16:33,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:37,434 INFO L130 PetriNetUnfolder]: 2603/8753 cut-off events. [2022-11-16 11:16:37,435 INFO L131 PetriNetUnfolder]: For 21374/21553 co-relation queries the response was YES. [2022-11-16 11:16:37,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30105 conditions, 8753 events. 2603/8753 cut-off events. For 21374/21553 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 81799 event pairs, 428 based on Foata normal form. 71/8585 useless extension candidates. Maximal degree in co-relation 29973. Up to 1724 conditions per place. [2022-11-16 11:16:37,519 INFO L137 encePairwiseOnDemand]: 176/209 looper letters, 770 selfloop transitions, 305 changer transitions 6/1186 dead transitions. [2022-11-16 11:16:37,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 1186 transitions, 12043 flow [2022-11-16 11:16:37,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-16 11:16:37,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-16 11:16:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3833 transitions. [2022-11-16 11:16:37,529 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6113237639553429 [2022-11-16 11:16:37,529 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 3833 transitions. [2022-11-16 11:16:37,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 3833 transitions. [2022-11-16 11:16:37,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:37,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 3833 transitions. [2022-11-16 11:16:37,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 127.76666666666667) internal successors, (3833), 30 states have internal predecessors, (3833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:37,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 209.0) internal successors, (6479), 31 states have internal predecessors, (6479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:37,555 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 209.0) internal successors, (6479), 31 states have internal predecessors, (6479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:37,555 INFO L175 Difference]: Start difference. First operand has 299 places, 604 transitions, 5263 flow. Second operand 30 states and 3833 transitions. [2022-11-16 11:16:37,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 1186 transitions, 12043 flow [2022-11-16 11:16:37,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1186 transitions, 11963 flow, removed 38 selfloop flow, removed 2 redundant places. [2022-11-16 11:16:37,748 INFO L231 Difference]: Finished difference. Result has 343 places, 741 transitions, 8340 flow [2022-11-16 11:16:37,749 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=5213, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=8340, PETRI_PLACES=343, PETRI_TRANSITIONS=741} [2022-11-16 11:16:37,749 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 131 predicate places. [2022-11-16 11:16:37,750 INFO L495 AbstractCegarLoop]: Abstraction has has 343 places, 741 transitions, 8340 flow [2022-11-16 11:16:37,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:37,750 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:37,751 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] [2022-11-16 11:16:37,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:16:37,751 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:37,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:37,751 INFO L85 PathProgramCache]: Analyzing trace with hash -842220046, now seen corresponding path program 1 times [2022-11-16 11:16:37,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:37,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523813447] [2022-11-16 11:16:37,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:37,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:37,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:38,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:38,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:38,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523813447] [2022-11-16 11:16:38,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523813447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:38,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:38,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:16:38,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294276124] [2022-11-16 11:16:38,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:38,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:16:38,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:38,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:16:38,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:16:38,821 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 209 [2022-11-16 11:16:38,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 741 transitions, 8340 flow. Second operand has 13 states, 13 states have (on average 113.07692307692308) internal successors, (1470), 13 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:38,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:38,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 209 [2022-11-16 11:16:38,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:42,350 INFO L130 PetriNetUnfolder]: 2692/8882 cut-off events. [2022-11-16 11:16:42,350 INFO L131 PetriNetUnfolder]: For 33154/33313 co-relation queries the response was YES. [2022-11-16 11:16:42,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33355 conditions, 8882 events. 2692/8882 cut-off events. For 33154/33313 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 82842 event pairs, 527 based on Foata normal form. 58/8673 useless extension candidates. Maximal degree in co-relation 33275. Up to 4333 conditions per place. [2022-11-16 11:16:42,434 INFO L137 encePairwiseOnDemand]: 189/209 looper letters, 693 selfloop transitions, 188 changer transitions 2/985 dead transitions. [2022-11-16 11:16:42,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 985 transitions, 12437 flow [2022-11-16 11:16:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 11:16:42,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-11-16 11:16:42,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2919 transitions. [2022-11-16 11:16:42,441 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5819377990430622 [2022-11-16 11:16:42,441 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 2919 transitions. [2022-11-16 11:16:42,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 2919 transitions. [2022-11-16 11:16:42,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:42,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 2919 transitions. [2022-11-16 11:16:42,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 121.625) internal successors, (2919), 24 states have internal predecessors, (2919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:42,455 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:42,457 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 209.0) internal successors, (5225), 25 states have internal predecessors, (5225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:42,457 INFO L175 Difference]: Start difference. First operand has 343 places, 741 transitions, 8340 flow. Second operand 24 states and 2919 transitions. [2022-11-16 11:16:42,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 985 transitions, 12437 flow [2022-11-16 11:16:42,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 985 transitions, 12319 flow, removed 39 selfloop flow, removed 10 redundant places. [2022-11-16 11:16:42,789 INFO L231 Difference]: Finished difference. Result has 361 places, 783 transitions, 9197 flow [2022-11-16 11:16:42,790 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=8222, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=741, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=9197, PETRI_PLACES=361, PETRI_TRANSITIONS=783} [2022-11-16 11:16:42,791 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 149 predicate places. [2022-11-16 11:16:42,791 INFO L495 AbstractCegarLoop]: Abstraction has has 361 places, 783 transitions, 9197 flow [2022-11-16 11:16:42,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 113.07692307692308) internal successors, (1470), 13 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:42,792 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:42,792 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] [2022-11-16 11:16:42,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:16:42,792 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:42,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:42,793 INFO L85 PathProgramCache]: Analyzing trace with hash -444993970, now seen corresponding path program 4 times [2022-11-16 11:16:42,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:42,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854302856] [2022-11-16 11:16:42,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:42,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:43,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:43,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:43,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854302856] [2022-11-16 11:16:43,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854302856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:43,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:43,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:16:43,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563032790] [2022-11-16 11:16:43,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:43,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:16:43,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:43,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:16:43,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:16:43,846 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-16 11:16:43,848 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 783 transitions, 9197 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:43,848 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:43,848 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-16 11:16:43,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:48,772 INFO L130 PetriNetUnfolder]: 3715/12586 cut-off events. [2022-11-16 11:16:48,772 INFO L131 PetriNetUnfolder]: For 56168/56484 co-relation queries the response was YES. [2022-11-16 11:16:48,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49765 conditions, 12586 events. 3715/12586 cut-off events. For 56168/56484 co-relation queries the response was YES. Maximal size of possible extension queue 355. Compared 130281 event pairs, 856 based on Foata normal form. 126/12394 useless extension candidates. Maximal degree in co-relation 49681. Up to 3764 conditions per place. [2022-11-16 11:16:48,918 INFO L137 encePairwiseOnDemand]: 177/209 looper letters, 723 selfloop transitions, 413 changer transitions 3/1247 dead transitions. [2022-11-16 11:16:48,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 1247 transitions, 16755 flow [2022-11-16 11:16:48,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 11:16:48,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-16 11:16:48,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2650 transitions. [2022-11-16 11:16:48,925 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6037821827295512 [2022-11-16 11:16:48,925 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2650 transitions. [2022-11-16 11:16:48,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2650 transitions. [2022-11-16 11:16:48,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:48,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2650 transitions. [2022-11-16 11:16:48,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 126.19047619047619) internal successors, (2650), 21 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:48,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 209.0) internal successors, (4598), 22 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:48,944 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 209.0) internal successors, (4598), 22 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:48,944 INFO L175 Difference]: Start difference. First operand has 361 places, 783 transitions, 9197 flow. Second operand 21 states and 2650 transitions. [2022-11-16 11:16:48,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 1247 transitions, 16755 flow [2022-11-16 11:16:49,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 1247 transitions, 16555 flow, removed 22 selfloop flow, removed 12 redundant places. [2022-11-16 11:16:49,520 INFO L231 Difference]: Finished difference. Result has 383 places, 956 transitions, 13691 flow [2022-11-16 11:16:49,521 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=9082, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=783, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=240, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=13691, PETRI_PLACES=383, PETRI_TRANSITIONS=956} [2022-11-16 11:16:49,522 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 171 predicate places. [2022-11-16 11:16:49,522 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 956 transitions, 13691 flow [2022-11-16 11:16:49,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:49,523 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:49,523 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] [2022-11-16 11:16:49,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:16:49,524 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:49,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:49,525 INFO L85 PathProgramCache]: Analyzing trace with hash 446278598, now seen corresponding path program 5 times [2022-11-16 11:16:49,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:49,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140066068] [2022-11-16 11:16:49,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:49,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:50,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:50,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:50,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140066068] [2022-11-16 11:16:50,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140066068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:50,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:50,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:16:50,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966995431] [2022-11-16 11:16:50,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:50,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:16:50,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:50,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:16:50,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:16:50,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-16 11:16:50,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 956 transitions, 13691 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:50,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:50,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-16 11:16:50,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:16:58,024 INFO L130 PetriNetUnfolder]: 4983/16882 cut-off events. [2022-11-16 11:16:58,025 INFO L131 PetriNetUnfolder]: For 95532/96052 co-relation queries the response was YES. [2022-11-16 11:16:58,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70267 conditions, 16882 events. 4983/16882 cut-off events. For 95532/96052 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 186143 event pairs, 935 based on Foata normal form. 224/16694 useless extension candidates. Maximal degree in co-relation 70164. Up to 3672 conditions per place. [2022-11-16 11:16:58,230 INFO L137 encePairwiseOnDemand]: 172/209 looper letters, 860 selfloop transitions, 599 changer transitions 4/1571 dead transitions. [2022-11-16 11:16:58,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 1571 transitions, 23904 flow [2022-11-16 11:16:58,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 11:16:58,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-16 11:16:58,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 3212 transitions. [2022-11-16 11:16:58,237 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6147368421052631 [2022-11-16 11:16:58,237 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 3212 transitions. [2022-11-16 11:16:58,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 3212 transitions. [2022-11-16 11:16:58,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:16:58,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 3212 transitions. [2022-11-16 11:16:58,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 128.48) internal successors, (3212), 25 states have internal predecessors, (3212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:58,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 209.0) internal successors, (5434), 26 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:58,254 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 209.0) internal successors, (5434), 26 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:58,255 INFO L175 Difference]: Start difference. First operand has 383 places, 956 transitions, 13691 flow. Second operand 25 states and 3212 transitions. [2022-11-16 11:16:58,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 1571 transitions, 23904 flow [2022-11-16 11:16:59,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 1571 transitions, 23822 flow, removed 39 selfloop flow, removed 2 redundant places. [2022-11-16 11:16:59,116 INFO L231 Difference]: Finished difference. Result has 426 places, 1161 transitions, 20075 flow [2022-11-16 11:16:59,118 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=13647, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=400, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=20075, PETRI_PLACES=426, PETRI_TRANSITIONS=1161} [2022-11-16 11:16:59,118 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 214 predicate places. [2022-11-16 11:16:59,118 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 1161 transitions, 20075 flow [2022-11-16 11:16:59,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:59,119 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:16:59,119 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] [2022-11-16 11:16:59,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:16:59,120 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:16:59,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:16:59,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1147946064, now seen corresponding path program 6 times [2022-11-16 11:16:59,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:16:59,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3563517] [2022-11-16 11:16:59,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:16:59,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:16:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:16:59,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:16:59,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:16:59,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3563517] [2022-11-16 11:16:59,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3563517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:16:59,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:16:59,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:16:59,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917550248] [2022-11-16 11:16:59,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:16:59,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:16:59,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:16:59,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:16:59,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:16:59,973 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-16 11:16:59,975 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 1161 transitions, 20075 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:16:59,975 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:16:59,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-16 11:16:59,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:17:11,149 INFO L130 PetriNetUnfolder]: 6590/22576 cut-off events. [2022-11-16 11:17:11,150 INFO L131 PetriNetUnfolder]: For 162900/163430 co-relation queries the response was YES. [2022-11-16 11:17:11,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98416 conditions, 22576 events. 6590/22576 cut-off events. For 162900/163430 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 267365 event pairs, 1269 based on Foata normal form. 243/22292 useless extension candidates. Maximal degree in co-relation 98285. Up to 5407 conditions per place. [2022-11-16 11:17:11,558 INFO L137 encePairwiseOnDemand]: 176/209 looper letters, 913 selfloop transitions, 781 changer transitions 6/1808 dead transitions. [2022-11-16 11:17:11,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 1808 transitions, 31782 flow [2022-11-16 11:17:11,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 11:17:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-11-16 11:17:11,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3599 transitions. [2022-11-16 11:17:11,564 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6150034176349966 [2022-11-16 11:17:11,564 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3599 transitions. [2022-11-16 11:17:11,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3599 transitions. [2022-11-16 11:17:11,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:17:11,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3599 transitions. [2022-11-16 11:17:11,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 128.53571428571428) internal successors, (3599), 28 states have internal predecessors, (3599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:11,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 209.0) internal successors, (6061), 29 states have internal predecessors, (6061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:11,779 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 209.0) internal successors, (6061), 29 states have internal predecessors, (6061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:11,779 INFO L175 Difference]: Start difference. First operand has 426 places, 1161 transitions, 20075 flow. Second operand 28 states and 3599 transitions. [2022-11-16 11:17:11,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 1808 transitions, 31782 flow [2022-11-16 11:17:13,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 1808 transitions, 31726 flow, removed 26 selfloop flow, removed 2 redundant places. [2022-11-16 11:17:13,764 INFO L231 Difference]: Finished difference. Result has 462 places, 1359 transitions, 27958 flow [2022-11-16 11:17:13,765 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=20027, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=583, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=466, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=27958, PETRI_PLACES=462, PETRI_TRANSITIONS=1359} [2022-11-16 11:17:13,766 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 250 predicate places. [2022-11-16 11:17:13,766 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 1359 transitions, 27958 flow [2022-11-16 11:17:13,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:13,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:17:13,767 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] [2022-11-16 11:17:13,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:17:13,768 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:17:13,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:13,768 INFO L85 PathProgramCache]: Analyzing trace with hash -320762536, now seen corresponding path program 7 times [2022-11-16 11:17:13,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:13,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152527387] [2022-11-16 11:17:13,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:13,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:14,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:14,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:14,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152527387] [2022-11-16 11:17:14,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152527387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:14,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:14,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:17:14,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10699035] [2022-11-16 11:17:14,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:14,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:17:14,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:14,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:17:14,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:17:14,540 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-16 11:17:14,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 1359 transitions, 27958 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:14,542 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:17:14,542 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-16 11:17:14,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:17:28,764 INFO L130 PetriNetUnfolder]: 7356/25193 cut-off events. [2022-11-16 11:17:28,765 INFO L131 PetriNetUnfolder]: For 232582/233356 co-relation queries the response was YES. [2022-11-16 11:17:29,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116316 conditions, 25193 events. 7356/25193 cut-off events. For 232582/233356 co-relation queries the response was YES. Maximal size of possible extension queue 801. Compared 304994 event pairs, 1427 based on Foata normal form. 326/24916 useless extension candidates. Maximal degree in co-relation 116176. Up to 5182 conditions per place. [2022-11-16 11:17:29,240 INFO L137 encePairwiseOnDemand]: 176/209 looper letters, 1006 selfloop transitions, 847 changer transitions 6/1967 dead transitions. [2022-11-16 11:17:29,240 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 493 places, 1967 transitions, 38992 flow [2022-11-16 11:17:29,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-16 11:17:29,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-11-16 11:17:29,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 4075 transitions. [2022-11-16 11:17:29,246 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6093002392344498 [2022-11-16 11:17:29,247 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 4075 transitions. [2022-11-16 11:17:29,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 4075 transitions. [2022-11-16 11:17:29,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:17:29,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 4075 transitions. [2022-11-16 11:17:29,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 127.34375) internal successors, (4075), 32 states have internal predecessors, (4075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:29,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 209.0) internal successors, (6897), 33 states have internal predecessors, (6897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:29,266 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 209.0) internal successors, (6897), 33 states have internal predecessors, (6897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:29,267 INFO L175 Difference]: Start difference. First operand has 462 places, 1359 transitions, 27958 flow. Second operand 32 states and 4075 transitions. [2022-11-16 11:17:29,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 493 places, 1967 transitions, 38992 flow [2022-11-16 11:17:32,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 1967 transitions, 38804 flow, removed 13 selfloop flow, removed 15 redundant places. [2022-11-16 11:17:32,475 INFO L231 Difference]: Finished difference. Result has 493 places, 1492 transitions, 34748 flow [2022-11-16 11:17:32,476 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=27773, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=715, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=553, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=34748, PETRI_PLACES=493, PETRI_TRANSITIONS=1492} [2022-11-16 11:17:32,477 INFO L288 CegarLoopForPetriNet]: 212 programPoint places, 281 predicate places. [2022-11-16 11:17:32,477 INFO L495 AbstractCegarLoop]: Abstraction has has 493 places, 1492 transitions, 34748 flow [2022-11-16 11:17:32,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:32,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:17:32,478 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] [2022-11-16 11:17:32,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:17:32,478 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-16 11:17:32,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:17:32,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1450649388, now seen corresponding path program 8 times [2022-11-16 11:17:32,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:17:32,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774835980] [2022-11-16 11:17:32,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:17:32,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:17:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:17:33,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:17:33,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:17:33,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774835980] [2022-11-16 11:17:33,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774835980] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:17:33,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:17:33,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 11:17:33,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715793211] [2022-11-16 11:17:33,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:17:33,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 11:17:33,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:17:33,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 11:17:33,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:17:33,091 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 209 [2022-11-16 11:17:33,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 1492 transitions, 34748 flow. Second operand has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:17:33,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:17:33,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 209 [2022-11-16 11:17:33,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand