./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/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_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-38b53e6 [2022-11-25 17:33:01,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:33:01,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:33:01,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:33:01,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:33:01,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:33:01,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:33:01,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:33:01,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:33:01,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:33:01,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:33:01,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:33:01,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:33:01,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:33:01,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:33:01,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:33:01,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:33:01,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:33:01,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:33:01,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:33:01,297 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:33:01,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:33:01,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:33:01,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:33:01,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:33:01,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:33:01,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:33:01,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:33:01,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:33:01,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:33:01,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:33:01,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:33:01,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:33:01,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:33:01,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:33:01,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:33:01,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:33:01,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:33:01,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:33:01,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:33:01,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:33:01,334 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:33:01,377 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:33:01,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:33:01,379 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:33:01,379 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:33:01,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:33:01,380 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:33:01,381 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:33:01,381 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:33:01,382 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:33:01,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:33:01,383 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:33:01,384 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:33:01,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:33:01,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:33:01,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:33:01,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:33:01,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:33:01,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:33:01,385 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:33:01,386 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:33:01,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:33:01,386 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:33:01,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:33:01,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:33:01,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:33:01,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:33:01,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:33:01,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:33:01,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:33:01,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:33:01,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:33:01,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:33:01,390 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:33:01,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:33:01,390 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:33:01,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:33:01,390 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-11-25 17:33:01,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:33:01,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:33:01,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:33:01,758 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:33:01,759 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:33:01,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-25 17:33:04,818 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:33:05,168 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:33:05,168 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-25 17:33:05,193 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/data/ba24b28e1/8497fbbf6b90466d8fd661be771e5f81/FLAG44232e144 [2022-11-25 17:33:05,215 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/data/ba24b28e1/8497fbbf6b90466d8fd661be771e5f81 [2022-11-25 17:33:05,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:33:05,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:33:05,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:33:05,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:33:05,228 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:33:05,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:33:05" (1/1) ... [2022-11-25 17:33:05,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ce45094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:05, skipping insertion in model container [2022-11-25 17:33:05,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:33:05" (1/1) ... [2022-11-25 17:33:05,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:33:05,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:33:05,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:33:05,947 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:33:06,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:33:06,174 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:33:06,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06 WrapperNode [2022-11-25 17:33:06,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:33:06,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:33:06,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:33:06,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:33:06,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (1/1) ... [2022-11-25 17:33:06,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (1/1) ... [2022-11-25 17:33:06,246 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 172 [2022-11-25 17:33:06,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:33:06,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:33:06,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:33:06,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:33:06,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (1/1) ... [2022-11-25 17:33:06,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (1/1) ... [2022-11-25 17:33:06,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (1/1) ... [2022-11-25 17:33:06,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (1/1) ... [2022-11-25 17:33:06,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (1/1) ... [2022-11-25 17:33:06,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (1/1) ... [2022-11-25 17:33:06,314 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (1/1) ... [2022-11-25 17:33:06,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (1/1) ... [2022-11-25 17:33:06,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:33:06,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:33:06,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:33:06,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:33:06,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (1/1) ... [2022-11-25 17:33:06,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:33:06,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:33:06,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:33:06,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d41ab844-db2f-407d-8de5-2d0107d2c172/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:33:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:33:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:33:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:33:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:33:06,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:33:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:33:06,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:33:06,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:33:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:33:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 17:33:06,434 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 17:33:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:33:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:33:06,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:33:06,436 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:33:06,639 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:33:06,641 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:33:07,134 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:33:07,145 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:33:07,145 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:33:07,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:33:07 BoogieIcfgContainer [2022-11-25 17:33:07,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:33:07,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:33:07,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:33:07,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:33:07,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:33:05" (1/3) ... [2022-11-25 17:33:07,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c0d01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:33:07, skipping insertion in model container [2022-11-25 17:33:07,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:33:06" (2/3) ... [2022-11-25 17:33:07,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c0d01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:33:07, skipping insertion in model container [2022-11-25 17:33:07,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:33:07" (3/3) ... [2022-11-25 17:33:07,158 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-11-25 17:33:07,168 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:33:07,181 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:33:07,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-25 17:33:07,181 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:33:07,311 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:33:07,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 204 transitions, 413 flow [2022-11-25 17:33:07,537 INFO L130 PetriNetUnfolder]: 0/203 cut-off events. [2022-11-25 17:33:07,537 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:33:07,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 203 events. 0/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-25 17:33:07,540 INFO L82 GeneralOperation]: Start removeDead. Operand has 208 places, 204 transitions, 413 flow [2022-11-25 17:33:07,545 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 203 transitions, 409 flow [2022-11-25 17:33:07,549 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:33:07,575 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 207 places, 203 transitions, 409 flow [2022-11-25 17:33:07,585 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 207 places, 203 transitions, 409 flow [2022-11-25 17:33:07,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 207 places, 203 transitions, 409 flow [2022-11-25 17:33:07,672 INFO L130 PetriNetUnfolder]: 0/203 cut-off events. [2022-11-25 17:33:07,680 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:33:07,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 203 events. 0/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-25 17:33:07,685 INFO L119 LiptonReduction]: Number of co-enabled transitions 4288 [2022-11-25 17:33:48,553 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 150 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:33:59,179 WARN L233 SmtUtils]: Spent 7.08s on a formula simplification that was a NOOP. DAG size: 190 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:34:05,698 WARN L233 SmtUtils]: Spent 6.52s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:35:01,876 WARN L233 SmtUtils]: Spent 53.24s on a formula simplification. DAG size of input: 265 DAG size of output: 261 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:35:44,357 WARN L233 SmtUtils]: Spent 42.48s on a formula simplification that was a NOOP. DAG size: 251 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:37:51,943 WARN L233 SmtUtils]: Spent 2.13m on a formula simplification. DAG size of input: 265 DAG size of output: 261 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:38:09,509 WARN L233 SmtUtils]: Spent 17.56s on a formula simplification that was a NOOP. DAG size: 251 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:38:10,116 INFO L134 LiptonReduction]: Checked pairs total: 59628 [2022-11-25 17:38:10,117 INFO L136 LiptonReduction]: Total number of compositions: 206 [2022-11-25 17:38:10,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:38:10,154 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;@6aae33dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:38:10,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-25 17:38:10,159 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:38:10,160 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:38:10,160 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:10,161 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:38:10,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:38:10,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash 685, now seen corresponding path program 1 times [2022-11-25 17:38:10,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:10,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446563481] [2022-11-25 17:38:10,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:10,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:10,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:10,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:10,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:10,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446563481] [2022-11-25 17:38:10,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446563481] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:10,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:10,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:38:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908948620] [2022-11-25 17:38:10,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:10,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:38:10,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:10,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:38:10,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:38:10,385 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 410 [2022-11-25 17:38:10,388 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 137 flow. Second operand has 2 states, 2 states have (on average 203.5) internal successors, (407), 2 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:10,389 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:10,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 410 [2022-11-25 17:38:10,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:38:10,622 INFO L130 PetriNetUnfolder]: 84/374 cut-off events. [2022-11-25 17:38:10,623 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:38:10,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 374 events. 84/374 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1716 event pairs, 84 based on Foata normal form. 0/357 useless extension candidates. Maximal degree in co-relation 560. Up to 191 conditions per place. [2022-11-25 17:38:10,634 INFO L137 encePairwiseOnDemand]: 399/410 looper letters, 22 selfloop transitions, 0 changer transitions 0/56 dead transitions. [2022-11-25 17:38:10,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 56 transitions, 159 flow [2022-11-25 17:38:10,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:38:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:38:10,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 439 transitions. [2022-11-25 17:38:10,667 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5353658536585366 [2022-11-25 17:38:10,668 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 439 transitions. [2022-11-25 17:38:10,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 439 transitions. [2022-11-25 17:38:10,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:38:10,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 439 transitions. [2022-11-25 17:38:10,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 219.5) internal successors, (439), 2 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:10,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:10,695 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 410.0) internal successors, (1230), 3 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:10,698 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 137 flow. Second operand 2 states and 439 transitions. [2022-11-25 17:38:10,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 56 transitions, 159 flow [2022-11-25 17:38:10,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 158 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:38:10,715 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 114 flow [2022-11-25 17:38:10,726 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=114, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2022-11-25 17:38:10,731 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, -11 predicate places. [2022-11-25 17:38:10,734 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 114 flow [2022-11-25 17:38:10,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 203.5) internal successors, (407), 2 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:10,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:10,737 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:10,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:38:10,738 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:38:10,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:10,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1506548410, now seen corresponding path program 1 times [2022-11-25 17:38:10,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:10,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018514430] [2022-11-25 17:38:10,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:10,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:11,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:11,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:11,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018514430] [2022-11-25 17:38:11,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018514430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:11,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:11,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:38:11,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417576041] [2022-11-25 17:38:11,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:11,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:38:11,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:11,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:38:11,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:38:12,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 410 [2022-11-25 17:38:12,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 114 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:12,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:12,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 410 [2022-11-25 17:38:12,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:38:13,326 INFO L130 PetriNetUnfolder]: 526/1398 cut-off events. [2022-11-25 17:38:13,326 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:38:13,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2541 conditions, 1398 events. 526/1398 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 8030 event pairs, 72 based on Foata normal form. 0/1316 useless extension candidates. Maximal degree in co-relation 2538. Up to 568 conditions per place. [2022-11-25 17:38:13,337 INFO L137 encePairwiseOnDemand]: 382/410 looper letters, 118 selfloop transitions, 70 changer transitions 0/200 dead transitions. [2022-11-25 17:38:13,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 200 transitions, 778 flow [2022-11-25 17:38:13,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:38:13,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:38:13,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1097 transitions. [2022-11-25 17:38:13,341 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4459349593495935 [2022-11-25 17:38:13,341 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1097 transitions. [2022-11-25 17:38:13,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1097 transitions. [2022-11-25 17:38:13,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:38:13,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1097 transitions. [2022-11-25 17:38:13,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 182.83333333333334) internal successors, (1097), 6 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:13,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:13,354 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:13,354 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 114 flow. Second operand 6 states and 1097 transitions. [2022-11-25 17:38:13,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 200 transitions, 778 flow [2022-11-25 17:38:13,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 200 transitions, 778 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:38:13,360 INFO L231 Difference]: Finished difference. Result has 69 places, 126 transitions, 592 flow [2022-11-25 17:38:13,360 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=592, PETRI_PLACES=69, PETRI_TRANSITIONS=126} [2022-11-25 17:38:13,361 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, -2 predicate places. [2022-11-25 17:38:13,361 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 126 transitions, 592 flow [2022-11-25 17:38:13,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:13,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:13,362 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:13,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:38:13,363 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:38:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:13,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2110332715, now seen corresponding path program 1 times [2022-11-25 17:38:13,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:13,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785876130] [2022-11-25 17:38:13,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:13,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:13,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:13,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:13,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785876130] [2022-11-25 17:38:13,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785876130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:13,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:13,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:38:13,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516990153] [2022-11-25 17:38:13,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:13,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:38:13,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:13,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:38:13,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:38:14,340 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 410 [2022-11-25 17:38:14,341 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 126 transitions, 592 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:14,342 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:14,342 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 410 [2022-11-25 17:38:14,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:38:15,306 INFO L130 PetriNetUnfolder]: 761/1838 cut-off events. [2022-11-25 17:38:15,306 INFO L131 PetriNetUnfolder]: For 664/678 co-relation queries the response was YES. [2022-11-25 17:38:15,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4794 conditions, 1838 events. 761/1838 cut-off events. For 664/678 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10487 event pairs, 357 based on Foata normal form. 0/1759 useless extension candidates. Maximal degree in co-relation 4786. Up to 1494 conditions per place. [2022-11-25 17:38:15,322 INFO L137 encePairwiseOnDemand]: 396/410 looper letters, 117 selfloop transitions, 44 changer transitions 0/189 dead transitions. [2022-11-25 17:38:15,322 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 189 transitions, 1114 flow [2022-11-25 17:38:15,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:38:15,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:38:15,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1022 transitions. [2022-11-25 17:38:15,327 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41544715447154473 [2022-11-25 17:38:15,327 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1022 transitions. [2022-11-25 17:38:15,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1022 transitions. [2022-11-25 17:38:15,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:38:15,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1022 transitions. [2022-11-25 17:38:15,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.33333333333334) internal successors, (1022), 6 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:15,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:15,339 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:15,340 INFO L175 Difference]: Start difference. First operand has 69 places, 126 transitions, 592 flow. Second operand 6 states and 1022 transitions. [2022-11-25 17:38:15,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 189 transitions, 1114 flow [2022-11-25 17:38:15,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 189 transitions, 1114 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:38:15,359 INFO L231 Difference]: Finished difference. Result has 78 places, 165 transitions, 898 flow [2022-11-25 17:38:15,360 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=78, PETRI_TRANSITIONS=165} [2022-11-25 17:38:15,362 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 7 predicate places. [2022-11-25 17:38:15,362 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 165 transitions, 898 flow [2022-11-25 17:38:15,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:15,363 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:15,364 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:15,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:38:15,365 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:38:15,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:15,366 INFO L85 PathProgramCache]: Analyzing trace with hash 367137111, now seen corresponding path program 1 times [2022-11-25 17:38:15,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:15,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093093124] [2022-11-25 17:38:15,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:15,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:16,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:16,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:16,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093093124] [2022-11-25 17:38:16,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093093124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:16,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:16,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:38:16,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403979728] [2022-11-25 17:38:16,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:16,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:38:16,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:16,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:38:16,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:38:17,508 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:38:17,511 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 165 transitions, 898 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:17,511 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:17,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:38:17,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:38:19,262 INFO L130 PetriNetUnfolder]: 700/1839 cut-off events. [2022-11-25 17:38:19,263 INFO L131 PetriNetUnfolder]: For 1198/1208 co-relation queries the response was YES. [2022-11-25 17:38:19,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5529 conditions, 1839 events. 700/1839 cut-off events. For 1198/1208 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 11248 event pairs, 81 based on Foata normal form. 28/1789 useless extension candidates. Maximal degree in co-relation 5516. Up to 585 conditions per place. [2022-11-25 17:38:19,278 INFO L137 encePairwiseOnDemand]: 389/410 looper letters, 339 selfloop transitions, 67 changer transitions 3/437 dead transitions. [2022-11-25 17:38:19,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 437 transitions, 2996 flow [2022-11-25 17:38:19,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 17:38:19,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-25 17:38:19,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2923 transitions. [2022-11-25 17:38:19,294 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.39607046070460705 [2022-11-25 17:38:19,294 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2923 transitions. [2022-11-25 17:38:19,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2923 transitions. [2022-11-25 17:38:19,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:38:19,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2923 transitions. [2022-11-25 17:38:19,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 162.38888888888889) internal successors, (2923), 18 states have internal predecessors, (2923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:19,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 410.0) internal successors, (7790), 19 states have internal predecessors, (7790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:19,323 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 410.0) internal successors, (7790), 19 states have internal predecessors, (7790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:19,323 INFO L175 Difference]: Start difference. First operand has 78 places, 165 transitions, 898 flow. Second operand 18 states and 2923 transitions. [2022-11-25 17:38:19,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 437 transitions, 2996 flow [2022-11-25 17:38:19,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 437 transitions, 2948 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-25 17:38:19,350 INFO L231 Difference]: Finished difference. Result has 102 places, 216 transitions, 1418 flow [2022-11-25 17:38:19,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1418, PETRI_PLACES=102, PETRI_TRANSITIONS=216} [2022-11-25 17:38:19,352 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 31 predicate places. [2022-11-25 17:38:19,353 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 216 transitions, 1418 flow [2022-11-25 17:38:19,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:19,354 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:19,354 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:19,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:38:19,354 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:38:19,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:19,355 INFO L85 PathProgramCache]: Analyzing trace with hash 834992293, now seen corresponding path program 2 times [2022-11-25 17:38:19,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:19,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100313881] [2022-11-25 17:38:19,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:19,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:19,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:20,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:20,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:20,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100313881] [2022-11-25 17:38:20,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100313881] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:20,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:20,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:38:20,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743677663] [2022-11-25 17:38:20,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:20,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:38:20,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:20,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:38:20,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:38:21,114 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:38:21,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 216 transitions, 1418 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:21,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:21,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:38:21,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:38:23,441 INFO L130 PetriNetUnfolder]: 898/2371 cut-off events. [2022-11-25 17:38:23,442 INFO L131 PetriNetUnfolder]: For 3325/3343 co-relation queries the response was YES. [2022-11-25 17:38:23,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8112 conditions, 2371 events. 898/2371 cut-off events. For 3325/3343 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 15930 event pairs, 104 based on Foata normal form. 21/2294 useless extension candidates. Maximal degree in co-relation 8092. Up to 835 conditions per place. [2022-11-25 17:38:23,467 INFO L137 encePairwiseOnDemand]: 378/410 looper letters, 279 selfloop transitions, 130 changer transitions 2/439 dead transitions. [2022-11-25 17:38:23,467 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 439 transitions, 3384 flow [2022-11-25 17:38:23,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:38:23,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 17:38:23,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2056 transitions. [2022-11-25 17:38:23,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41788617886178864 [2022-11-25 17:38:23,476 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2056 transitions. [2022-11-25 17:38:23,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2056 transitions. [2022-11-25 17:38:23,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:38:23,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2056 transitions. [2022-11-25 17:38:23,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 171.33333333333334) internal successors, (2056), 12 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:23,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:23,493 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:23,493 INFO L175 Difference]: Start difference. First operand has 102 places, 216 transitions, 1418 flow. Second operand 12 states and 2056 transitions. [2022-11-25 17:38:23,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 439 transitions, 3384 flow [2022-11-25 17:38:23,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 439 transitions, 3384 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:38:23,533 INFO L231 Difference]: Finished difference. Result has 123 places, 265 transitions, 2370 flow [2022-11-25 17:38:23,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=1418, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2370, PETRI_PLACES=123, PETRI_TRANSITIONS=265} [2022-11-25 17:38:23,536 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 52 predicate places. [2022-11-25 17:38:23,537 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 265 transitions, 2370 flow [2022-11-25 17:38:23,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:23,538 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:23,538 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:23,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:38:23,539 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:38:23,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:23,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1054984146, now seen corresponding path program 1 times [2022-11-25 17:38:23,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:23,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664967517] [2022-11-25 17:38:23,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:23,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:24,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:24,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:24,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664967517] [2022-11-25 17:38:24,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664967517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:24,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:24,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:38:24,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219882502] [2022-11-25 17:38:24,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:24,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:38:24,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:24,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:38:24,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:38:25,356 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 410 [2022-11-25 17:38:25,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 265 transitions, 2370 flow. Second operand has 10 states, 10 states have (on average 150.2) internal successors, (1502), 10 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:25,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:25,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 410 [2022-11-25 17:38:25,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:38:27,198 INFO L130 PetriNetUnfolder]: 1094/2754 cut-off events. [2022-11-25 17:38:27,198 INFO L131 PetriNetUnfolder]: For 7330/7364 co-relation queries the response was YES. [2022-11-25 17:38:27,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10784 conditions, 2754 events. 1094/2754 cut-off events. For 7330/7364 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 18210 event pairs, 306 based on Foata normal form. 0/2643 useless extension candidates. Maximal degree in co-relation 10754. Up to 1811 conditions per place. [2022-11-25 17:38:27,230 INFO L137 encePairwiseOnDemand]: 396/410 looper letters, 300 selfloop transitions, 89 changer transitions 2/427 dead transitions. [2022-11-25 17:38:27,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 427 transitions, 4307 flow [2022-11-25 17:38:27,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:38:27,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 17:38:27,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2423 transitions. [2022-11-25 17:38:27,239 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3939837398373984 [2022-11-25 17:38:27,239 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2423 transitions. [2022-11-25 17:38:27,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2423 transitions. [2022-11-25 17:38:27,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:38:27,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2423 transitions. [2022-11-25 17:38:27,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 161.53333333333333) internal successors, (2423), 15 states have internal predecessors, (2423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:27,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 410.0) internal successors, (6560), 16 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:27,264 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 410.0) internal successors, (6560), 16 states have internal predecessors, (6560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:27,264 INFO L175 Difference]: Start difference. First operand has 123 places, 265 transitions, 2370 flow. Second operand 15 states and 2423 transitions. [2022-11-25 17:38:27,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 427 transitions, 4307 flow [2022-11-25 17:38:27,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 427 transitions, 4295 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-11-25 17:38:27,330 INFO L231 Difference]: Finished difference. Result has 141 places, 295 transitions, 2875 flow [2022-11-25 17:38:27,332 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=2360, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2875, PETRI_PLACES=141, PETRI_TRANSITIONS=295} [2022-11-25 17:38:27,335 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 70 predicate places. [2022-11-25 17:38:27,335 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 295 transitions, 2875 flow [2022-11-25 17:38:27,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 150.2) internal successors, (1502), 10 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:27,337 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:27,337 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:27,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:38:27,338 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:38:27,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:27,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1079874313, now seen corresponding path program 3 times [2022-11-25 17:38:27,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:27,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474505998] [2022-11-25 17:38:27,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:27,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:28,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:28,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:28,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474505998] [2022-11-25 17:38:28,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474505998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:28,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:28,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:38:28,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980259029] [2022-11-25 17:38:28,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:28,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:38:28,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:28,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:38:28,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:38:29,049 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:38:29,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 295 transitions, 2875 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:29,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:29,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:38:29,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:38:31,168 INFO L130 PetriNetUnfolder]: 1063/2831 cut-off events. [2022-11-25 17:38:31,169 INFO L131 PetriNetUnfolder]: For 9374/9425 co-relation queries the response was YES. [2022-11-25 17:38:31,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12095 conditions, 2831 events. 1063/2831 cut-off events. For 9374/9425 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 20202 event pairs, 121 based on Foata normal form. 30/2745 useless extension candidates. Maximal degree in co-relation 12060. Up to 824 conditions per place. [2022-11-25 17:38:31,205 INFO L137 encePairwiseOnDemand]: 378/410 looper letters, 321 selfloop transitions, 162 changer transitions 2/519 dead transitions. [2022-11-25 17:38:31,205 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 519 transitions, 5399 flow [2022-11-25 17:38:31,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:38:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 17:38:31,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2208 transitions. [2022-11-25 17:38:31,213 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41425891181988744 [2022-11-25 17:38:31,213 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2208 transitions. [2022-11-25 17:38:31,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2208 transitions. [2022-11-25 17:38:31,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:38:31,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2208 transitions. [2022-11-25 17:38:31,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 169.84615384615384) internal successors, (2208), 13 states have internal predecessors, (2208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:31,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:31,232 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:31,232 INFO L175 Difference]: Start difference. First operand has 141 places, 295 transitions, 2875 flow. Second operand 13 states and 2208 transitions. [2022-11-25 17:38:31,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 519 transitions, 5399 flow [2022-11-25 17:38:31,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 519 transitions, 5367 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-11-25 17:38:31,323 INFO L231 Difference]: Finished difference. Result has 161 places, 348 transitions, 4202 flow [2022-11-25 17:38:31,324 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=2855, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4202, PETRI_PLACES=161, PETRI_TRANSITIONS=348} [2022-11-25 17:38:31,324 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 90 predicate places. [2022-11-25 17:38:31,324 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 348 transitions, 4202 flow [2022-11-25 17:38:31,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:31,325 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:31,326 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:31,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:38:31,326 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:38:31,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:31,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1563039367, now seen corresponding path program 4 times [2022-11-25 17:38:31,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:31,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348472339] [2022-11-25 17:38:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:31,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:31,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:31,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:31,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348472339] [2022-11-25 17:38:31,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348472339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:31,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:31,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:38:31,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306767142] [2022-11-25 17:38:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:31,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:38:31,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:31,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:38:31,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:38:33,480 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:38:33,482 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 348 transitions, 4202 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:33,482 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:33,482 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:38:33,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:38:36,208 INFO L130 PetriNetUnfolder]: 1600/4190 cut-off events. [2022-11-25 17:38:36,208 INFO L131 PetriNetUnfolder]: For 20492/20590 co-relation queries the response was YES. [2022-11-25 17:38:36,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19872 conditions, 4190 events. 1600/4190 cut-off events. For 20492/20590 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 33389 event pairs, 144 based on Foata normal form. 57/4077 useless extension candidates. Maximal degree in co-relation 19828. Up to 1016 conditions per place. [2022-11-25 17:38:36,260 INFO L137 encePairwiseOnDemand]: 382/410 looper letters, 449 selfloop transitions, 262 changer transitions 3/748 dead transitions. [2022-11-25 17:38:36,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 748 transitions, 9440 flow [2022-11-25 17:38:36,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 17:38:36,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-25 17:38:36,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2670 transitions. [2022-11-25 17:38:36,269 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4070121951219512 [2022-11-25 17:38:36,270 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2670 transitions. [2022-11-25 17:38:36,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2670 transitions. [2022-11-25 17:38:36,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:38:36,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2670 transitions. [2022-11-25 17:38:36,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 166.875) internal successors, (2670), 16 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) [2022-11-25 17:38:36,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 410.0) internal successors, (6970), 17 states have internal predecessors, (6970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:36,312 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 410.0) internal successors, (6970), 17 states have internal predecessors, (6970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:36,313 INFO L175 Difference]: Start difference. First operand has 161 places, 348 transitions, 4202 flow. Second operand 16 states and 2670 transitions. [2022-11-25 17:38:36,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 748 transitions, 9440 flow [2022-11-25 17:38:36,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 748 transitions, 9398 flow, removed 13 selfloop flow, removed 1 redundant places. [2022-11-25 17:38:36,514 INFO L231 Difference]: Finished difference. Result has 185 places, 480 transitions, 7218 flow [2022-11-25 17:38:36,515 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=4180, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=7218, PETRI_PLACES=185, PETRI_TRANSITIONS=480} [2022-11-25 17:38:36,515 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 114 predicate places. [2022-11-25 17:38:36,516 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 480 transitions, 7218 flow [2022-11-25 17:38:36,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:36,517 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:36,517 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:36,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:38:36,517 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)] === [2022-11-25 17:38:36,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:36,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1080414821, now seen corresponding path program 5 times [2022-11-25 17:38:36,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:36,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439441184] [2022-11-25 17:38:36,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:36,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:37,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:37,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439441184] [2022-11-25 17:38:37,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439441184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:37,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:37,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:38:37,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253703609] [2022-11-25 17:38:37,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:37,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:38:37,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:37,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:38:37,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:38:38,310 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:38:38,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 480 transitions, 7218 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:38,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:38,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:38:38,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:38:41,599 INFO L130 PetriNetUnfolder]: 1964/5143 cut-off events. [2022-11-25 17:38:41,599 INFO L131 PetriNetUnfolder]: For 39419/39579 co-relation queries the response was YES. [2022-11-25 17:38:41,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27058 conditions, 5143 events. 1964/5143 cut-off events. For 39419/39579 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 43064 event pairs, 345 based on Foata normal form. 97/5021 useless extension candidates. Maximal degree in co-relation 27004. Up to 1274 conditions per place. [2022-11-25 17:38:41,655 INFO L137 encePairwiseOnDemand]: 378/410 looper letters, 439 selfloop transitions, 315 changer transitions 2/790 dead transitions. [2022-11-25 17:38:41,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 790 transitions, 11977 flow [2022-11-25 17:38:41,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:38:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:38:41,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2358 transitions. [2022-11-25 17:38:41,665 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.410801393728223 [2022-11-25 17:38:41,665 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2358 transitions. [2022-11-25 17:38:41,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2358 transitions. [2022-11-25 17:38:41,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:38:41,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2358 transitions. [2022-11-25 17:38:41,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 168.42857142857142) internal successors, (2358), 14 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:41,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:41,687 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:41,687 INFO L175 Difference]: Start difference. First operand has 185 places, 480 transitions, 7218 flow. Second operand 14 states and 2358 transitions. [2022-11-25 17:38:41,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 790 transitions, 11977 flow [2022-11-25 17:38:42,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 790 transitions, 11891 flow, removed 34 selfloop flow, removed 4 redundant places. [2022-11-25 17:38:42,094 INFO L231 Difference]: Finished difference. Result has 206 places, 580 transitions, 10220 flow [2022-11-25 17:38:42,095 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=7144, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=10220, PETRI_PLACES=206, PETRI_TRANSITIONS=580} [2022-11-25 17:38:42,095 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 135 predicate places. [2022-11-25 17:38:42,096 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 580 transitions, 10220 flow [2022-11-25 17:38:42,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:42,096 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:42,096 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:42,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:38:42,096 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)] === [2022-11-25 17:38:42,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:42,097 INFO L85 PathProgramCache]: Analyzing trace with hash 237785471, now seen corresponding path program 6 times [2022-11-25 17:38:42,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:42,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681519737] [2022-11-25 17:38:42,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:42,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:42,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:42,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681519737] [2022-11-25 17:38:42,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681519737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:42,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:42,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:38:42,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230245601] [2022-11-25 17:38:42,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:42,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:38:42,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:42,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:38:42,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:38:44,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:38:44,204 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 580 transitions, 10220 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:44,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:44,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:38:44,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:38:48,017 INFO L130 PetriNetUnfolder]: 2191/5689 cut-off events. [2022-11-25 17:38:48,017 INFO L131 PetriNetUnfolder]: For 59353/59548 co-relation queries the response was YES. [2022-11-25 17:38:48,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32671 conditions, 5689 events. 2191/5689 cut-off events. For 59353/59548 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 48879 event pairs, 203 based on Foata normal form. 120/5578 useless extension candidates. Maximal degree in co-relation 32606. Up to 1668 conditions per place. [2022-11-25 17:38:48,086 INFO L137 encePairwiseOnDemand]: 382/410 looper letters, 453 selfloop transitions, 400 changer transitions 3/890 dead transitions. [2022-11-25 17:38:48,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 890 transitions, 14998 flow [2022-11-25 17:38:48,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 17:38:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-25 17:38:48,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2991 transitions. [2022-11-25 17:38:48,096 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40528455284552845 [2022-11-25 17:38:48,096 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2991 transitions. [2022-11-25 17:38:48,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2991 transitions. [2022-11-25 17:38:48,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:38:48,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2991 transitions. [2022-11-25 17:38:48,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 166.16666666666666) internal successors, (2991), 18 states have internal predecessors, (2991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:48,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 410.0) internal successors, (7790), 19 states have internal predecessors, (7790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:48,118 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 410.0) internal successors, (7790), 19 states have internal predecessors, (7790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:48,119 INFO L175 Difference]: Start difference. First operand has 206 places, 580 transitions, 10220 flow. Second operand 18 states and 2991 transitions. [2022-11-25 17:38:48,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 890 transitions, 14998 flow [2022-11-25 17:38:48,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 890 transitions, 14938 flow, removed 30 selfloop flow, removed 0 redundant places. [2022-11-25 17:38:48,974 INFO L231 Difference]: Finished difference. Result has 235 places, 660 transitions, 13427 flow [2022-11-25 17:38:48,975 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=10174, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=321, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=13427, PETRI_PLACES=235, PETRI_TRANSITIONS=660} [2022-11-25 17:38:48,977 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 164 predicate places. [2022-11-25 17:38:48,977 INFO L495 AbstractCegarLoop]: Abstraction has has 235 places, 660 transitions, 13427 flow [2022-11-25 17:38:48,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:48,978 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:48,978 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:48,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:38:48,978 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)] === [2022-11-25 17:38:48,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:48,979 INFO L85 PathProgramCache]: Analyzing trace with hash 919884769, now seen corresponding path program 7 times [2022-11-25 17:38:48,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:48,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887571696] [2022-11-25 17:38:48,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:48,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:49,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:49,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:49,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887571696] [2022-11-25 17:38:49,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887571696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:49,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:49,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:38:49,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886466177] [2022-11-25 17:38:49,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:49,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:38:49,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:49,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:38:49,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:38:50,960 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:38:50,961 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 660 transitions, 13427 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:50,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:50,961 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:38:50,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:38:54,988 INFO L130 PetriNetUnfolder]: 2498/6551 cut-off events. [2022-11-25 17:38:54,989 INFO L131 PetriNetUnfolder]: For 92852/93077 co-relation queries the response was YES. [2022-11-25 17:38:55,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40737 conditions, 6551 events. 2498/6551 cut-off events. For 92852/93077 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 58544 event pairs, 372 based on Foata normal form. 130/6395 useless extension candidates. Maximal degree in co-relation 40659. Up to 1735 conditions per place. [2022-11-25 17:38:55,093 INFO L137 encePairwiseOnDemand]: 378/410 looper letters, 545 selfloop transitions, 403 changer transitions 2/984 dead transitions. [2022-11-25 17:38:55,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 984 transitions, 19680 flow [2022-11-25 17:38:55,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:38:55,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:38:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2345 transitions. [2022-11-25 17:38:55,100 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40853658536585363 [2022-11-25 17:38:55,100 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2345 transitions. [2022-11-25 17:38:55,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2345 transitions. [2022-11-25 17:38:55,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:38:55,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2345 transitions. [2022-11-25 17:38:55,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 167.5) internal successors, (2345), 14 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:55,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:55,116 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:55,116 INFO L175 Difference]: Start difference. First operand has 235 places, 660 transitions, 13427 flow. Second operand 14 states and 2345 transitions. [2022-11-25 17:38:55,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 984 transitions, 19680 flow [2022-11-25 17:38:56,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 984 transitions, 19612 flow, removed 25 selfloop flow, removed 4 redundant places. [2022-11-25 17:38:56,854 INFO L231 Difference]: Finished difference. Result has 256 places, 754 transitions, 17312 flow [2022-11-25 17:38:56,855 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=13378, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=313, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=17312, PETRI_PLACES=256, PETRI_TRANSITIONS=754} [2022-11-25 17:38:56,855 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 185 predicate places. [2022-11-25 17:38:56,855 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 754 transitions, 17312 flow [2022-11-25 17:38:56,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:56,856 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:38:56,856 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:38:56,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:38:56,856 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:38:56,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:38:56,857 INFO L85 PathProgramCache]: Analyzing trace with hash 535397561, now seen corresponding path program 8 times [2022-11-25 17:38:56,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:38:56,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762610393] [2022-11-25 17:38:56,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:38:56,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:38:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:38:57,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:38:57,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:38:57,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762610393] [2022-11-25 17:38:57,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762610393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:38:57,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:38:57,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:38:57,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593343032] [2022-11-25 17:38:57,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:38:57,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:38:57,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:38:57,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:38:57,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:38:58,574 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:38:58,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 754 transitions, 17312 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:38:58,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:38:58,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:38:58,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:39:03,118 INFO L130 PetriNetUnfolder]: 2667/6998 cut-off events. [2022-11-25 17:39:03,118 INFO L131 PetriNetUnfolder]: For 122675/122845 co-relation queries the response was YES. [2022-11-25 17:39:03,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46252 conditions, 6998 events. 2667/6998 cut-off events. For 122675/122845 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 63636 event pairs, 308 based on Foata normal form. 69/6770 useless extension candidates. Maximal degree in co-relation 46163. Up to 1785 conditions per place. [2022-11-25 17:39:03,210 INFO L137 encePairwiseOnDemand]: 382/410 looper letters, 543 selfloop transitions, 477 changer transitions 3/1057 dead transitions. [2022-11-25 17:39:03,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 1057 transitions, 22808 flow [2022-11-25 17:39:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 17:39:03,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-25 17:39:03,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2830 transitions. [2022-11-25 17:39:03,217 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.406025824964132 [2022-11-25 17:39:03,217 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2830 transitions. [2022-11-25 17:39:03,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2830 transitions. [2022-11-25 17:39:03,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:39:03,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2830 transitions. [2022-11-25 17:39:03,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 166.47058823529412) internal successors, (2830), 17 states have internal predecessors, (2830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:03,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 410.0) internal successors, (7380), 18 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:03,234 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 410.0) internal successors, (7380), 18 states have internal predecessors, (7380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:03,234 INFO L175 Difference]: Start difference. First operand has 256 places, 754 transitions, 17312 flow. Second operand 17 states and 2830 transitions. [2022-11-25 17:39:03,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 1057 transitions, 22808 flow [2022-11-25 17:39:04,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 272 places, 1057 transitions, 22726 flow, removed 41 selfloop flow, removed 0 redundant places. [2022-11-25 17:39:04,753 INFO L231 Difference]: Finished difference. Result has 283 places, 819 transitions, 20861 flow [2022-11-25 17:39:04,754 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=17240, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=754, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=412, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=20861, PETRI_PLACES=283, PETRI_TRANSITIONS=819} [2022-11-25 17:39:04,755 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 212 predicate places. [2022-11-25 17:39:04,755 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 819 transitions, 20861 flow [2022-11-25 17:39:04,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:04,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:04,756 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:39:04,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:39:04,756 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)] === [2022-11-25 17:39:04,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:04,757 INFO L85 PathProgramCache]: Analyzing trace with hash -658741495, now seen corresponding path program 9 times [2022-11-25 17:39:04,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:04,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167596172] [2022-11-25 17:39:04,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:04,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:05,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:39:05,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:39:05,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167596172] [2022-11-25 17:39:05,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167596172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:39:05,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:39:05,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:39:05,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037560102] [2022-11-25 17:39:05,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:39:05,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:39:05,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:39:05,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:39:05,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:39:06,757 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:39:06,760 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 819 transitions, 20861 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:06,760 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:39:06,760 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:39:06,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:39:12,069 INFO L130 PetriNetUnfolder]: 2879/7605 cut-off events. [2022-11-25 17:39:12,069 INFO L131 PetriNetUnfolder]: For 167514/167717 co-relation queries the response was YES. [2022-11-25 17:39:12,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53423 conditions, 7605 events. 2879/7605 cut-off events. For 167514/167717 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 70637 event pairs, 365 based on Foata normal form. 78/7362 useless extension candidates. Maximal degree in co-relation 53322. Up to 2186 conditions per place. [2022-11-25 17:39:12,183 INFO L137 encePairwiseOnDemand]: 379/410 looper letters, 494 selfloop transitions, 560 changer transitions 2/1090 dead transitions. [2022-11-25 17:39:12,183 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 1090 transitions, 26977 flow [2022-11-25 17:39:12,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:39:12,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:39:12,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2331 transitions. [2022-11-25 17:39:12,189 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4060975609756098 [2022-11-25 17:39:12,189 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2331 transitions. [2022-11-25 17:39:12,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2331 transitions. [2022-11-25 17:39:12,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:39:12,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2331 transitions. [2022-11-25 17:39:12,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 166.5) internal successors, (2331), 14 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:12,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:12,203 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:12,203 INFO L175 Difference]: Start difference. First operand has 283 places, 819 transitions, 20861 flow. Second operand 14 states and 2331 transitions. [2022-11-25 17:39:12,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 1090 transitions, 26977 flow [2022-11-25 17:39:14,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 1090 transitions, 26910 flow, removed 28 selfloop flow, removed 3 redundant places. [2022-11-25 17:39:14,327 INFO L231 Difference]: Finished difference. Result has 305 places, 888 transitions, 25200 flow [2022-11-25 17:39:14,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=20802, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=819, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=491, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=25200, PETRI_PLACES=305, PETRI_TRANSITIONS=888} [2022-11-25 17:39:14,329 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 234 predicate places. [2022-11-25 17:39:14,329 INFO L495 AbstractCegarLoop]: Abstraction has has 305 places, 888 transitions, 25200 flow [2022-11-25 17:39:14,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:14,330 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:14,330 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:39:14,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:39:14,330 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)] === [2022-11-25 17:39:14,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:14,331 INFO L85 PathProgramCache]: Analyzing trace with hash -965233225, now seen corresponding path program 10 times [2022-11-25 17:39:14,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:14,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532506563] [2022-11-25 17:39:14,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:14,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:14,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:15,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:39:15,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:39:15,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532506563] [2022-11-25 17:39:15,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532506563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:39:15,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:39:15,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:39:15,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585676569] [2022-11-25 17:39:15,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:39:15,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:39:15,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:39:15,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:39:15,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:39:16,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:39:16,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 888 transitions, 25200 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:16,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:39:16,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:39:16,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:39:22,085 INFO L130 PetriNetUnfolder]: 3047/8060 cut-off events. [2022-11-25 17:39:22,085 INFO L131 PetriNetUnfolder]: For 220317/220532 co-relation queries the response was YES. [2022-11-25 17:39:22,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60146 conditions, 8060 events. 3047/8060 cut-off events. For 220317/220532 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 75978 event pairs, 343 based on Foata normal form. 74/7790 useless extension candidates. Maximal degree in co-relation 60034. Up to 2470 conditions per place. [2022-11-25 17:39:22,210 INFO L137 encePairwiseOnDemand]: 381/410 looper letters, 454 selfloop transitions, 595 changer transitions 2/1085 dead transitions. [2022-11-25 17:39:22,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 1085 transitions, 30205 flow [2022-11-25 17:39:22,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:39:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-25 17:39:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2145 transitions. [2022-11-25 17:39:22,216 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4024390243902439 [2022-11-25 17:39:22,216 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2145 transitions. [2022-11-25 17:39:22,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2145 transitions. [2022-11-25 17:39:22,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:39:22,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2145 transitions. [2022-11-25 17:39:22,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:22,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:22,229 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 410.0) internal successors, (5740), 14 states have internal predecessors, (5740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:22,229 INFO L175 Difference]: Start difference. First operand has 305 places, 888 transitions, 25200 flow. Second operand 13 states and 2145 transitions. [2022-11-25 17:39:22,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 1085 transitions, 30205 flow [2022-11-25 17:39:25,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 1085 transitions, 30031 flow, removed 87 selfloop flow, removed 0 redundant places. [2022-11-25 17:39:25,369 INFO L231 Difference]: Finished difference. Result has 327 places, 934 transitions, 29046 flow [2022-11-25 17:39:25,371 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=25052, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=888, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=549, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=29046, PETRI_PLACES=327, PETRI_TRANSITIONS=934} [2022-11-25 17:39:25,371 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 256 predicate places. [2022-11-25 17:39:25,371 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 934 transitions, 29046 flow [2022-11-25 17:39:25,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:25,372 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:25,373 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:39:25,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:39:25,373 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)] === [2022-11-25 17:39:25,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:25,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1088753953, now seen corresponding path program 11 times [2022-11-25 17:39:25,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:25,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755369584] [2022-11-25 17:39:25,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:25,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:39:26,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:39:26,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755369584] [2022-11-25 17:39:26,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755369584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:39:26,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:39:26,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:39:26,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281419910] [2022-11-25 17:39:26,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:39:26,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:39:26,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:39:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:39:26,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:39:27,451 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:39:27,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 934 transitions, 29046 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:27,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:39:27,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:39:27,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:39:34,706 INFO L130 PetriNetUnfolder]: 3236/8510 cut-off events. [2022-11-25 17:39:34,706 INFO L131 PetriNetUnfolder]: For 282713/282946 co-relation queries the response was YES. [2022-11-25 17:39:34,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67243 conditions, 8510 events. 3236/8510 cut-off events. For 282713/282946 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 81271 event pairs, 504 based on Foata normal form. 66/8209 useless extension candidates. Maximal degree in co-relation 67121. Up to 2554 conditions per place. [2022-11-25 17:39:34,868 INFO L137 encePairwiseOnDemand]: 378/410 looper letters, 525 selfloop transitions, 629 changer transitions 2/1190 dead transitions. [2022-11-25 17:39:34,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 1190 transitions, 34885 flow [2022-11-25 17:39:34,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:39:34,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:39:34,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2370 transitions. [2022-11-25 17:39:34,875 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41289198606271776 [2022-11-25 17:39:34,875 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2370 transitions. [2022-11-25 17:39:34,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2370 transitions. [2022-11-25 17:39:34,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:39:34,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2370 transitions. [2022-11-25 17:39:34,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 169.28571428571428) internal successors, (2370), 14 states have internal predecessors, (2370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:34,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:34,891 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:34,891 INFO L175 Difference]: Start difference. First operand has 327 places, 934 transitions, 29046 flow. Second operand 14 states and 2370 transitions. [2022-11-25 17:39:34,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 1190 transitions, 34885 flow [2022-11-25 17:39:38,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 1190 transitions, 34756 flow, removed 55 selfloop flow, removed 1 redundant places. [2022-11-25 17:39:39,020 INFO L231 Difference]: Finished difference. Result has 349 places, 988 transitions, 33358 flow [2022-11-25 17:39:39,021 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=28919, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=934, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=576, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33358, PETRI_PLACES=349, PETRI_TRANSITIONS=988} [2022-11-25 17:39:39,021 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 278 predicate places. [2022-11-25 17:39:39,022 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 988 transitions, 33358 flow [2022-11-25 17:39:39,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:39,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:39,023 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:39:39,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:39:39,023 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)] === [2022-11-25 17:39:39,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:39,023 INFO L85 PathProgramCache]: Analyzing trace with hash 782802731, now seen corresponding path program 12 times [2022-11-25 17:39:39,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:39,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554772193] [2022-11-25 17:39:39,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:39,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:39,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:39:39,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:39:39,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554772193] [2022-11-25 17:39:39,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554772193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:39:39,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:39:39,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:39:39,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440108019] [2022-11-25 17:39:39,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:39:39,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:39:39,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:39:39,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:39:39,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:39:40,881 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:39:40,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 988 transitions, 33358 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:40,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:39:40,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:39:40,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:39:48,524 INFO L130 PetriNetUnfolder]: 3385/8980 cut-off events. [2022-11-25 17:39:48,525 INFO L131 PetriNetUnfolder]: For 343851/344166 co-relation queries the response was YES. [2022-11-25 17:39:48,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74164 conditions, 8980 events. 3385/8980 cut-off events. For 343851/344166 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 87023 event pairs, 368 based on Foata normal form. 142/8730 useless extension candidates. Maximal degree in co-relation 74032. Up to 2815 conditions per place. [2022-11-25 17:39:48,711 INFO L137 encePairwiseOnDemand]: 379/410 looper letters, 488 selfloop transitions, 711 changer transitions 2/1235 dead transitions. [2022-11-25 17:39:48,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 1235 transitions, 39583 flow [2022-11-25 17:39:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:39:48,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:39:48,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2342 transitions. [2022-11-25 17:39:48,716 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.40801393728222995 [2022-11-25 17:39:48,716 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2342 transitions. [2022-11-25 17:39:48,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2342 transitions. [2022-11-25 17:39:48,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:39:48,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2342 transitions. [2022-11-25 17:39:48,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 167.28571428571428) internal successors, (2342), 14 states have internal predecessors, (2342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:48,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:48,729 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:48,729 INFO L175 Difference]: Start difference. First operand has 349 places, 988 transitions, 33358 flow. Second operand 14 states and 2342 transitions. [2022-11-25 17:39:48,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 1235 transitions, 39583 flow [2022-11-25 17:39:54,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 1235 transitions, 39427 flow, removed 56 selfloop flow, removed 1 redundant places. [2022-11-25 17:39:54,719 INFO L231 Difference]: Finished difference. Result has 373 places, 1047 transitions, 38343 flow [2022-11-25 17:39:54,721 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=33222, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=988, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=654, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=38343, PETRI_PLACES=373, PETRI_TRANSITIONS=1047} [2022-11-25 17:39:54,721 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 302 predicate places. [2022-11-25 17:39:54,722 INFO L495 AbstractCegarLoop]: Abstraction has has 373 places, 1047 transitions, 38343 flow [2022-11-25 17:39:54,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:54,722 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:39:54,722 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:39:54,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 17:39:54,723 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)] === [2022-11-25 17:39:54,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:39:54,724 INFO L85 PathProgramCache]: Analyzing trace with hash -956353585, now seen corresponding path program 13 times [2022-11-25 17:39:54,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:39:54,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542033729] [2022-11-25 17:39:54,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:39:54,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:39:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:39:55,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:39:55,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:39:55,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542033729] [2022-11-25 17:39:55,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542033729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:39:55,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:39:55,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:39:55,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441485876] [2022-11-25 17:39:55,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:39:55,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:39:55,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:39:55,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:39:55,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:39:56,502 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 410 [2022-11-25 17:39:56,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 1047 transitions, 38343 flow. Second operand has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:39:56,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:39:56,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 410 [2022-11-25 17:39:56,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:04,901 INFO L130 PetriNetUnfolder]: 3533/9387 cut-off events. [2022-11-25 17:40:04,901 INFO L131 PetriNetUnfolder]: For 422863/423202 co-relation queries the response was YES. [2022-11-25 17:40:05,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81378 conditions, 9387 events. 3533/9387 cut-off events. For 422863/423202 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 91969 event pairs, 492 based on Foata normal form. 166/9142 useless extension candidates. Maximal degree in co-relation 81235. Up to 2680 conditions per place. [2022-11-25 17:40:05,106 INFO L137 encePairwiseOnDemand]: 380/410 looper letters, 530 selfloop transitions, 697 changer transitions 2/1263 dead transitions. [2022-11-25 17:40:05,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 1263 transitions, 44472 flow [2022-11-25 17:40:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 17:40:05,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 17:40:05,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2310 transitions. [2022-11-25 17:40:05,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4024390243902439 [2022-11-25 17:40:05,111 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2310 transitions. [2022-11-25 17:40:05,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2310 transitions. [2022-11-25 17:40:05,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:05,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2310 transitions. [2022-11-25 17:40:05,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 165.0) internal successors, (2310), 14 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:05,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:05,297 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 410.0) internal successors, (6150), 15 states have internal predecessors, (6150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:05,298 INFO L175 Difference]: Start difference. First operand has 373 places, 1047 transitions, 38343 flow. Second operand 14 states and 2310 transitions. [2022-11-25 17:40:05,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 1263 transitions, 44472 flow [2022-11-25 17:40:12,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1263 transitions, 44364 flow, removed 54 selfloop flow, removed 0 redundant places. [2022-11-25 17:40:12,953 INFO L231 Difference]: Finished difference. Result has 396 places, 1095 transitions, 43166 flow [2022-11-25 17:40:12,954 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=38245, PETRI_DIFFERENCE_MINUEND_PLACES=373, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1047, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=649, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=43166, PETRI_PLACES=396, PETRI_TRANSITIONS=1095} [2022-11-25 17:40:12,954 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 325 predicate places. [2022-11-25 17:40:12,954 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 1095 transitions, 43166 flow [2022-11-25 17:40:12,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 148.2) internal successors, (1482), 10 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:12,955 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:12,955 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:12,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 17:40:12,956 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:40:12,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:12,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1250965195, now seen corresponding path program 1 times [2022-11-25 17:40:12,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:12,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660489874] [2022-11-25 17:40:12,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:12,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:13,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:13,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:13,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660489874] [2022-11-25 17:40:13,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660489874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:13,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:13,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:40:13,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97620205] [2022-11-25 17:40:13,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:13,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:40:13,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:13,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:40:13,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:40:13,888 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 410 [2022-11-25 17:40:13,889 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 1095 transitions, 43166 flow. Second operand has 6 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:13,889 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:13,889 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 410 [2022-11-25 17:40:13,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:28,523 INFO L130 PetriNetUnfolder]: 7202/16654 cut-off events. [2022-11-25 17:40:28,523 INFO L131 PetriNetUnfolder]: For 871599/872398 co-relation queries the response was YES. [2022-11-25 17:40:28,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142009 conditions, 16654 events. 7202/16654 cut-off events. For 871599/872398 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 160320 event pairs, 692 based on Foata normal form. 106/16358 useless extension candidates. Maximal degree in co-relation 141856. Up to 9610 conditions per place. [2022-11-25 17:40:28,961 INFO L137 encePairwiseOnDemand]: 388/410 looper letters, 1082 selfloop transitions, 739 changer transitions 4/2054 dead transitions. [2022-11-25 17:40:28,961 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 2054 transitions, 87640 flow [2022-11-25 17:40:28,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:40:28,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:40:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1104 transitions. [2022-11-25 17:40:28,964 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44878048780487806 [2022-11-25 17:40:28,965 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1104 transitions. [2022-11-25 17:40:28,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1104 transitions. [2022-11-25 17:40:28,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:28,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1104 transitions. [2022-11-25 17:40:28,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.0) internal successors, (1104), 6 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:28,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:28,971 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:28,971 INFO L175 Difference]: Start difference. First operand has 396 places, 1095 transitions, 43166 flow. Second operand 6 states and 1104 transitions. [2022-11-25 17:40:28,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 2054 transitions, 87640 flow [2022-11-25 17:40:45,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 2054 transitions, 87282 flow, removed 99 selfloop flow, removed 3 redundant places. [2022-11-25 17:40:45,361 INFO L231 Difference]: Finished difference. Result has 403 places, 1669 transitions, 71523 flow [2022-11-25 17:40:45,362 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=42965, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1095, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=272, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=794, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=71523, PETRI_PLACES=403, PETRI_TRANSITIONS=1669} [2022-11-25 17:40:45,362 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 332 predicate places. [2022-11-25 17:40:45,362 INFO L495 AbstractCegarLoop]: Abstraction has has 403 places, 1669 transitions, 71523 flow [2022-11-25 17:40:45,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:45,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:45,363 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:45,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 17:40:45,363 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:40:45,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:45,363 INFO L85 PathProgramCache]: Analyzing trace with hash -117656293, now seen corresponding path program 1 times [2022-11-25 17:40:45,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:45,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638022338] [2022-11-25 17:40:45,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:45,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:45,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:45,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:45,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638022338] [2022-11-25 17:40:45,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638022338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:45,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:45,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:40:45,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441312759] [2022-11-25 17:40:45,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:45,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:40:45,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:45,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:40:45,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:40:46,138 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 410 [2022-11-25 17:40:46,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 403 places, 1669 transitions, 71523 flow. Second operand has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:46,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:46,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 410 [2022-11-25 17:40:46,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:41:09,016 INFO L130 PetriNetUnfolder]: 8288/18959 cut-off events. [2022-11-25 17:41:09,017 INFO L131 PetriNetUnfolder]: For 934384/934884 co-relation queries the response was YES. [2022-11-25 17:41:09,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167910 conditions, 18959 events. 8288/18959 cut-off events. For 934384/934884 co-relation queries the response was YES. Maximal size of possible extension queue 682. Compared 184248 event pairs, 2413 based on Foata normal form. 0/18491 useless extension candidates. Maximal degree in co-relation 167753. Up to 14498 conditions per place. [2022-11-25 17:41:09,577 INFO L137 encePairwiseOnDemand]: 396/410 looper letters, 1391 selfloop transitions, 229 changer transitions 0/1938 dead transitions. [2022-11-25 17:41:09,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 408 places, 1938 transitions, 83971 flow [2022-11-25 17:41:09,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:41:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:41:09,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1023 transitions. [2022-11-25 17:41:09,580 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41585365853658535 [2022-11-25 17:41:09,580 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1023 transitions. [2022-11-25 17:41:09,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1023 transitions. [2022-11-25 17:41:09,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:41:09,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1023 transitions. [2022-11-25 17:41:09,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:41:09,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:41:09,586 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:41:09,586 INFO L175 Difference]: Start difference. First operand has 403 places, 1669 transitions, 71523 flow. Second operand 6 states and 1023 transitions. [2022-11-25 17:41:09,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 408 places, 1938 transitions, 83971 flow [2022-11-25 17:41:28,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 1938 transitions, 83455 flow, removed 258 selfloop flow, removed 0 redundant places. [2022-11-25 17:41:28,466 INFO L231 Difference]: Finished difference. Result has 412 places, 1802 transitions, 74807 flow [2022-11-25 17:41:28,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=71007, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1669, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=74807, PETRI_PLACES=412, PETRI_TRANSITIONS=1802} [2022-11-25 17:41:28,468 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 341 predicate places. [2022-11-25 17:41:28,468 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 1802 transitions, 74807 flow [2022-11-25 17:41:28,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 155.0) internal successors, (930), 6 states have internal predecessors, (930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:41:28,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:41:28,469 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:41:28,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 17:41:28,469 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2022-11-25 17:41:28,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:41:28,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1030283013, now seen corresponding path program 1 times [2022-11-25 17:41:28,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:41:28,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430304345] [2022-11-25 17:41:28,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:41:28,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:41:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:41:29,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:41:29,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:41:29,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430304345] [2022-11-25 17:41:29,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430304345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:41:29,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:41:29,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 17:41:29,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396474051] [2022-11-25 17:41:29,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:41:29,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:41:29,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:41:29,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:41:29,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:41:31,042 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 410 [2022-11-25 17:41:31,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 1802 transitions, 74807 flow. Second operand has 12 states, 12 states have (on average 135.5) internal successors, (1626), 12 states have internal predecessors, (1626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:41:31,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:41:31,044 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 410 [2022-11-25 17:41:31,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand