./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 20:50:51,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:50:51,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:50:51,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:50:51,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:50:51,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:50:51,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:50:51,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:50:51,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:50:51,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:50:51,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:50:51,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:50:51,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:50:51,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:50:51,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:50:51,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:50:51,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:50:51,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:50:51,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:50:51,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:50:51,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:50:51,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:50:51,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:50:51,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:50:51,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:50:51,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:50:51,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:50:51,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:50:51,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:50:51,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:50:51,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:50:51,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:50:51,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:50:51,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:50:51,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:50:51,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:50:51,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:50:51,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:50:51,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:50:51,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:50:51,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:50:51,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:50:51,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:50:51,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:50:51,319 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:50:51,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:50:51,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:50:51,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:50:51,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:50:51,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:50:51,322 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:50:51,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:50:51,323 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:50:51,324 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:50:51,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:50:51,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:50:51,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:50:51,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:50:51,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:50:51,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:50:51,325 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:50:51,325 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:50:51,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:50:51,326 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:50:51,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:50:51,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:50:51,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:50:51,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:50:51,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:50:51,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:50:51,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:50:51,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:50:51,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:50:51,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:50:51,328 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:50:51,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:50:51,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:50:51,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e95fa30ebde8538537e9926c639bef97cab57433fef0bd6d73df06023fa7d1 [2022-11-02 20:50:51,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:50:51,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:50:51,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:50:51,662 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:50:51,663 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:50:51,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-02 20:50:51,760 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/data/7d5e27331/a3ab6f4644e9472f886fd1c281ca4daa/FLAG74a53f4fc [2022-11-02 20:50:52,338 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:50:52,338 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/sv-benchmarks/c/goblint-regression/09-regions_04-list2_nr.i [2022-11-02 20:50:52,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/data/7d5e27331/a3ab6f4644e9472f886fd1c281ca4daa/FLAG74a53f4fc [2022-11-02 20:50:52,584 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/data/7d5e27331/a3ab6f4644e9472f886fd1c281ca4daa [2022-11-02 20:50:52,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:50:52,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:50:52,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:50:52,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:50:52,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:50:52,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:50:52" (1/1) ... [2022-11-02 20:50:52,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1040fb4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:52, skipping insertion in model container [2022-11-02 20:50:52,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:50:52" (1/1) ... [2022-11-02 20:50:52,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:50:52,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:50:53,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:50:53,256 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:50:53,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:50:53,401 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:50:53,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53 WrapperNode [2022-11-02 20:50:53,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:50:53,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:50:53,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:50:53,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:50:53,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (1/1) ... [2022-11-02 20:50:53,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (1/1) ... [2022-11-02 20:50:53,464 INFO L138 Inliner]: procedures = 368, calls = 55, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 206 [2022-11-02 20:50:53,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:50:53,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:50:53,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:50:53,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:50:53,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (1/1) ... [2022-11-02 20:50:53,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (1/1) ... [2022-11-02 20:50:53,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (1/1) ... [2022-11-02 20:50:53,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (1/1) ... [2022-11-02 20:50:53,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (1/1) ... [2022-11-02 20:50:53,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (1/1) ... [2022-11-02 20:50:53,531 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (1/1) ... [2022-11-02 20:50:53,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (1/1) ... [2022-11-02 20:50:53,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:50:53,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:50:53,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:50:53,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:50:53,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (1/1) ... [2022-11-02 20:50:53,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:50:53,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:53,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:50:53,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a0cedd-3b95-49ab-a03a-a9e1f945336e/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:50:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:50:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:50:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:50:53,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:50:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:50:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:50:53,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:50:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:50:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:50:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 20:50:53,633 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 20:50:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:50:53,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:50:53,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:50:53,635 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:50:53,872 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:50:53,874 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:50:54,491 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:50:54,513 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:50:54,514 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:50:54,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:54 BoogieIcfgContainer [2022-11-02 20:50:54,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:50:54,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:50:54,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:50:54,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:50:54,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:50:52" (1/3) ... [2022-11-02 20:50:54,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66646f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:50:54, skipping insertion in model container [2022-11-02 20:50:54,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:53" (2/3) ... [2022-11-02 20:50:54,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66646f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:50:54, skipping insertion in model container [2022-11-02 20:50:54,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:54" (3/3) ... [2022-11-02 20:50:54,526 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_04-list2_nr.i [2022-11-02 20:50:54,540 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:50:54,550 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:50:54,551 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-02 20:50:54,551 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:50:54,663 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:50:54,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 313 transitions, 631 flow [2022-11-02 20:50:54,914 INFO L130 PetriNetUnfolder]: 0/312 cut-off events. [2022-11-02 20:50:54,914 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:50:54,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 312 events. 0/312 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 157 event pairs, 0 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-02 20:50:54,918 INFO L82 GeneralOperation]: Start removeDead. Operand has 317 places, 313 transitions, 631 flow [2022-11-02 20:50:54,933 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 316 places, 312 transitions, 627 flow [2022-11-02 20:50:54,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:50:54,963 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;@6b720790, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:50:54,963 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-11-02 20:50:54,976 INFO L130 PetriNetUnfolder]: 0/50 cut-off events. [2022-11-02 20:50:54,976 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:50:54,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:50:54,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:54,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:50:54,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1579257422, now seen corresponding path program 1 times [2022-11-02 20:50:54,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:54,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325754236] [2022-11-02 20:50:54,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:54,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:55,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:55,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:55,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325754236] [2022-11-02 20:50:55,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325754236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:55,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:55,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:50:55,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573185099] [2022-11-02 20:50:55,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:55,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:50:55,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:55,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:50:55,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:50:55,982 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 313 [2022-11-02 20:50:55,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 312 transitions, 627 flow. Second operand has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:55,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:50:55,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 313 [2022-11-02 20:50:55,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:50:57,133 INFO L130 PetriNetUnfolder]: 864/2873 cut-off events. [2022-11-02 20:50:57,133 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:50:57,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4747 conditions, 2873 events. 864/2873 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17999 event pairs, 864 based on Foata normal form. 0/2510 useless extension candidates. Maximal degree in co-relation 4478. Up to 1850 conditions per place. [2022-11-02 20:50:57,153 INFO L137 encePairwiseOnDemand]: 289/313 looper letters, 121 selfloop transitions, 20 changer transitions 0/308 dead transitions. [2022-11-02 20:50:57,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 308 transitions, 901 flow [2022-11-02 20:50:57,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:50:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:50:57,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1153 transitions. [2022-11-02 20:50:57,171 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.61395101171459 [2022-11-02 20:50:57,172 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1153 transitions. [2022-11-02 20:50:57,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1153 transitions. [2022-11-02 20:50:57,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:50:57,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1153 transitions. [2022-11-02 20:50:57,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.16666666666666) internal successors, (1153), 6 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:57,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:57,195 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:57,197 INFO L175 Difference]: Start difference. First operand has 316 places, 312 transitions, 627 flow. Second operand 6 states and 1153 transitions. [2022-11-02 20:50:57,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 308 transitions, 901 flow [2022-11-02 20:50:57,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 308 transitions, 900 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:50:57,210 INFO L231 Difference]: Finished difference. Result has 316 places, 308 transitions, 658 flow [2022-11-02 20:50:57,212 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=308, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=658, PETRI_PLACES=316, PETRI_TRANSITIONS=308} [2022-11-02 20:50:57,216 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 0 predicate places. [2022-11-02 20:50:57,216 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 308 transitions, 658 flow [2022-11-02 20:50:57,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.5) internal successors, (1017), 6 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:57,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:50:57,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:57,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:50:57,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:50:57,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:57,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1485619206, now seen corresponding path program 1 times [2022-11-02 20:50:57,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:57,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667882541] [2022-11-02 20:50:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:57,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:57,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:57,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:57,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667882541] [2022-11-02 20:50:57,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667882541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:57,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:57,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:50:57,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25749211] [2022-11-02 20:50:57,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:57,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:50:57,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:57,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:50:57,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:50:57,691 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 313 [2022-11-02 20:50:57,692 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 308 transitions, 658 flow. Second operand has 6 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) [2022-11-02 20:50:57,692 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:50:57,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 313 [2022-11-02 20:50:57,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:50:58,659 INFO L130 PetriNetUnfolder]: 864/2869 cut-off events. [2022-11-02 20:50:58,659 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-02 20:50:58,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4759 conditions, 2869 events. 864/2869 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17896 event pairs, 864 based on Foata normal form. 0/2510 useless extension candidates. Maximal degree in co-relation 4520. Up to 1846 conditions per place. [2022-11-02 20:50:58,676 INFO L137 encePairwiseOnDemand]: 289/313 looper letters, 117 selfloop transitions, 20 changer transitions 0/304 dead transitions. [2022-11-02 20:50:58,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 304 transitions, 924 flow [2022-11-02 20:50:58,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:50:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:50:58,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1149 transitions. [2022-11-02 20:50:58,681 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6118210862619808 [2022-11-02 20:50:58,681 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1149 transitions. [2022-11-02 20:50:58,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1149 transitions. [2022-11-02 20:50:58,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:50:58,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1149 transitions. [2022-11-02 20:50:58,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 191.5) internal successors, (1149), 6 states have internal predecessors, (1149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:58,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:58,692 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:58,692 INFO L175 Difference]: Start difference. First operand has 316 places, 308 transitions, 658 flow. Second operand 6 states and 1149 transitions. [2022-11-02 20:50:58,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 304 transitions, 924 flow [2022-11-02 20:50:58,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 304 transitions, 884 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:50:58,707 INFO L231 Difference]: Finished difference. Result has 312 places, 304 transitions, 650 flow [2022-11-02 20:50:58,708 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=650, PETRI_PLACES=312, PETRI_TRANSITIONS=304} [2022-11-02 20:50:58,710 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, -4 predicate places. [2022-11-02 20:50:58,710 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 304 transitions, 650 flow [2022-11-02 20:50:58,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 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) [2022-11-02 20:50:58,711 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:50:58,712 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:58,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:50:58,712 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:50:58,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:58,713 INFO L85 PathProgramCache]: Analyzing trace with hash -2109758001, now seen corresponding path program 1 times [2022-11-02 20:50:58,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:58,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280121500] [2022-11-02 20:50:58,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:58,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:58,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:58,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280121500] [2022-11-02 20:50:58,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280121500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:58,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:58,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:50:58,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106407781] [2022-11-02 20:50:58,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:58,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:50:58,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:58,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:58,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:58,795 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 313 [2022-11-02 20:50:58,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 304 transitions, 650 flow. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:58,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:50:58,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 313 [2022-11-02 20:50:58,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:50:58,931 INFO L130 PetriNetUnfolder]: 9/531 cut-off events. [2022-11-02 20:50:58,931 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:50:58,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 531 events. 9/531 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1507 event pairs, 9 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 397. Up to 35 conditions per place. [2022-11-02 20:50:58,934 INFO L137 encePairwiseOnDemand]: 310/313 looper letters, 16 selfloop transitions, 2 changer transitions 0/303 dead transitions. [2022-11-02 20:50:58,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 303 transitions, 684 flow [2022-11-02 20:50:58,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:58,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:50:58,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 901 transitions. [2022-11-02 20:50:58,939 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9595314164004259 [2022-11-02 20:50:58,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 901 transitions. [2022-11-02 20:50:58,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 901 transitions. [2022-11-02 20:50:58,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:50:58,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 901 transitions. [2022-11-02 20:50:58,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:58,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:58,948 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:58,948 INFO L175 Difference]: Start difference. First operand has 312 places, 304 transitions, 650 flow. Second operand 3 states and 901 transitions. [2022-11-02 20:50:58,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 303 transitions, 684 flow [2022-11-02 20:50:58,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 303 transitions, 644 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:50:58,957 INFO L231 Difference]: Finished difference. Result has 308 places, 303 transitions, 612 flow [2022-11-02 20:50:58,958 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=308, PETRI_TRANSITIONS=303} [2022-11-02 20:50:58,959 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, -8 predicate places. [2022-11-02 20:50:58,959 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 303 transitions, 612 flow [2022-11-02 20:50:58,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:58,960 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:50:58,961 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:58,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:50:58,961 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:50:58,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:58,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1817743894, now seen corresponding path program 1 times [2022-11-02 20:50:58,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:58,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845918505] [2022-11-02 20:50:58,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:58,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:59,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:59,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:59,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845918505] [2022-11-02 20:50:59,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845918505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:59,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:59,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:50:59,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014772997] [2022-11-02 20:50:59,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:59,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:50:59,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:59,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:59,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:59,048 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 313 [2022-11-02 20:50:59,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 303 transitions, 612 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:59,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:50:59,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 313 [2022-11-02 20:50:59,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:50:59,128 INFO L130 PetriNetUnfolder]: 4/468 cut-off events. [2022-11-02 20:50:59,129 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:50:59,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 494 conditions, 468 events. 4/468 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1084 event pairs, 4 based on Foata normal form. 0/434 useless extension candidates. Maximal degree in co-relation 420. Up to 17 conditions per place. [2022-11-02 20:50:59,131 INFO L137 encePairwiseOnDemand]: 308/313 looper letters, 10 selfloop transitions, 1 changer transitions 0/299 dead transitions. [2022-11-02 20:50:59,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 299 transitions, 626 flow [2022-11-02 20:50:59,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:59,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:50:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 906 transitions. [2022-11-02 20:50:59,134 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9648562300319489 [2022-11-02 20:50:59,134 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 906 transitions. [2022-11-02 20:50:59,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 906 transitions. [2022-11-02 20:50:59,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:50:59,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 906 transitions. [2022-11-02 20:50:59,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.0) internal successors, (906), 3 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:59,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:59,141 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:59,141 INFO L175 Difference]: Start difference. First operand has 308 places, 303 transitions, 612 flow. Second operand 3 states and 906 transitions. [2022-11-02 20:50:59,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 299 transitions, 626 flow [2022-11-02 20:50:59,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 299 transitions, 622 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:50:59,148 INFO L231 Difference]: Finished difference. Result has 304 places, 299 transitions, 602 flow [2022-11-02 20:50:59,149 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=602, PETRI_PLACES=304, PETRI_TRANSITIONS=299} [2022-11-02 20:50:59,149 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, -12 predicate places. [2022-11-02 20:50:59,150 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 299 transitions, 602 flow [2022-11-02 20:50:59,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:59,151 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:50:59,151 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:59,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:50:59,152 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:50:59,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:59,152 INFO L85 PathProgramCache]: Analyzing trace with hash 708730018, now seen corresponding path program 1 times [2022-11-02 20:50:59,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:59,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916010771] [2022-11-02 20:50:59,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:59,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:50:59,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:59,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916010771] [2022-11-02 20:50:59,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916010771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:59,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:59,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:50:59,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189175185] [2022-11-02 20:50:59,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:59,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:50:59,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:59,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:50:59,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:50:59,831 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 313 [2022-11-02 20:50:59,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 299 transitions, 602 flow. Second operand has 6 states, 6 states have (on average 188.16666666666666) internal successors, (1129), 6 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:50:59,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:50:59,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 313 [2022-11-02 20:50:59,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:00,752 INFO L130 PetriNetUnfolder]: 925/3035 cut-off events. [2022-11-02 20:51:00,753 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:51:00,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5012 conditions, 3035 events. 925/3035 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 19020 event pairs, 925 based on Foata normal form. 0/2670 useless extension candidates. Maximal degree in co-relation 4927. Up to 1967 conditions per place. [2022-11-02 20:51:00,770 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 116 selfloop transitions, 5 changer transitions 0/298 dead transitions. [2022-11-02 20:51:00,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 298 transitions, 842 flow [2022-11-02 20:51:00,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:00,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:51:00,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1220 transitions. [2022-11-02 20:51:00,775 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6496272630457934 [2022-11-02 20:51:00,775 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1220 transitions. [2022-11-02 20:51:00,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1220 transitions. [2022-11-02 20:51:00,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:00,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1220 transitions. [2022-11-02 20:51:00,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.33333333333334) internal successors, (1220), 6 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:00,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:00,785 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:00,786 INFO L175 Difference]: Start difference. First operand has 304 places, 299 transitions, 602 flow. Second operand 6 states and 1220 transitions. [2022-11-02 20:51:00,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 298 transitions, 842 flow [2022-11-02 20:51:00,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 298 transitions, 841 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:51:00,793 INFO L231 Difference]: Finished difference. Result has 307 places, 298 transitions, 609 flow [2022-11-02 20:51:00,794 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=609, PETRI_PLACES=307, PETRI_TRANSITIONS=298} [2022-11-02 20:51:00,797 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, -9 predicate places. [2022-11-02 20:51:00,797 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 298 transitions, 609 flow [2022-11-02 20:51:00,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.16666666666666) internal successors, (1129), 6 states have internal predecessors, (1129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:00,800 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:00,800 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:00,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:51:00,801 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:00,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:00,802 INFO L85 PathProgramCache]: Analyzing trace with hash 834139185, now seen corresponding path program 1 times [2022-11-02 20:51:00,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:00,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115724774] [2022-11-02 20:51:00,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:00,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:00,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:00,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:00,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:00,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115724774] [2022-11-02 20:51:00,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115724774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:00,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:00,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:00,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494256697] [2022-11-02 20:51:00,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:00,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:00,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:00,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:00,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:00,919 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 313 [2022-11-02 20:51:00,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 298 transitions, 609 flow. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:00,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:00,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 313 [2022-11-02 20:51:00,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:01,008 INFO L130 PetriNetUnfolder]: 9/430 cut-off events. [2022-11-02 20:51:01,008 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:51:01,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 430 events. 9/430 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 786 event pairs, 9 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 404. Up to 35 conditions per place. [2022-11-02 20:51:01,011 INFO L137 encePairwiseOnDemand]: 310/313 looper letters, 16 selfloop transitions, 2 changer transitions 0/297 dead transitions. [2022-11-02 20:51:01,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 297 transitions, 643 flow [2022-11-02 20:51:01,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:01,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:51:01,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 901 transitions. [2022-11-02 20:51:01,014 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9595314164004259 [2022-11-02 20:51:01,014 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 901 transitions. [2022-11-02 20:51:01,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 901 transitions. [2022-11-02 20:51:01,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:01,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 901 transitions. [2022-11-02 20:51:01,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 300.3333333333333) internal successors, (901), 3 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,020 INFO L175 Difference]: Start difference. First operand has 307 places, 298 transitions, 609 flow. Second operand 3 states and 901 transitions. [2022-11-02 20:51:01,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 297 transitions, 643 flow [2022-11-02 20:51:01,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 297 transitions, 633 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:51:01,031 INFO L231 Difference]: Finished difference. Result has 303 places, 297 transitions, 601 flow [2022-11-02 20:51:01,032 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=601, PETRI_PLACES=303, PETRI_TRANSITIONS=297} [2022-11-02 20:51:01,035 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, -13 predicate places. [2022-11-02 20:51:01,035 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 297 transitions, 601 flow [2022-11-02 20:51:01,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:01,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:01,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:51:01,036 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:01,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:01,037 INFO L85 PathProgramCache]: Analyzing trace with hash -264018609, now seen corresponding path program 1 times [2022-11-02 20:51:01,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:01,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590407445] [2022-11-02 20:51:01,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:01,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:01,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:01,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:01,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590407445] [2022-11-02 20:51:01,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590407445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:01,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:01,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:01,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293567096] [2022-11-02 20:51:01,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:01,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:01,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:01,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:01,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:01,120 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 313 [2022-11-02 20:51:01,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 297 transitions, 601 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:01,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 313 [2022-11-02 20:51:01,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:01,188 INFO L130 PetriNetUnfolder]: 4/386 cut-off events. [2022-11-02 20:51:01,188 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:51:01,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 386 events. 4/386 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 523 event pairs, 4 based on Foata normal form. 0/365 useless extension candidates. Maximal degree in co-relation 341. Up to 17 conditions per place. [2022-11-02 20:51:01,191 INFO L137 encePairwiseOnDemand]: 308/313 looper letters, 10 selfloop transitions, 1 changer transitions 0/293 dead transitions. [2022-11-02 20:51:01,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 293 transitions, 615 flow [2022-11-02 20:51:01,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:01,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:51:01,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 906 transitions. [2022-11-02 20:51:01,194 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9648562300319489 [2022-11-02 20:51:01,194 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 906 transitions. [2022-11-02 20:51:01,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 906 transitions. [2022-11-02 20:51:01,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:01,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 906 transitions. [2022-11-02 20:51:01,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.0) internal successors, (906), 3 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,200 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,200 INFO L175 Difference]: Start difference. First operand has 303 places, 297 transitions, 601 flow. Second operand 3 states and 906 transitions. [2022-11-02 20:51:01,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 293 transitions, 615 flow [2022-11-02 20:51:01,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 293 transitions, 611 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:51:01,206 INFO L231 Difference]: Finished difference. Result has 299 places, 293 transitions, 591 flow [2022-11-02 20:51:01,207 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=591, PETRI_PLACES=299, PETRI_TRANSITIONS=293} [2022-11-02 20:51:01,208 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, -17 predicate places. [2022-11-02 20:51:01,222 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 293 transitions, 591 flow [2022-11-02 20:51:01,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:01,223 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:01,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:51:01,224 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:01,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:01,224 INFO L85 PathProgramCache]: Analyzing trace with hash -123328695, now seen corresponding path program 1 times [2022-11-02 20:51:01,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:01,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760536679] [2022-11-02 20:51:01,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:01,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:01,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:01,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:01,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:01,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760536679] [2022-11-02 20:51:01,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760536679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:01,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:01,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:51:01,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339629736] [2022-11-02 20:51:01,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:01,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:01,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:01,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:01,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:01,942 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 313 [2022-11-02 20:51:01,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 293 transitions, 591 flow. Second operand has 6 states, 6 states have (on average 192.33333333333334) internal successors, (1154), 6 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:01,943 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:01,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 313 [2022-11-02 20:51:01,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:02,694 INFO L130 PetriNetUnfolder]: 925/2946 cut-off events. [2022-11-02 20:51:02,695 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:51:02,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4923 conditions, 2946 events. 925/2946 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 18302 event pairs, 925 based on Foata normal form. 0/2615 useless extension candidates. Maximal degree in co-relation 4839. Up to 1966 conditions per place. [2022-11-02 20:51:02,711 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 115 selfloop transitions, 5 changer transitions 0/292 dead transitions. [2022-11-02 20:51:02,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 292 transitions, 829 flow [2022-11-02 20:51:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:02,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:51:02,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1219 transitions. [2022-11-02 20:51:02,715 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6490947816826411 [2022-11-02 20:51:02,715 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1219 transitions. [2022-11-02 20:51:02,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1219 transitions. [2022-11-02 20:51:02,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:02,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1219 transitions. [2022-11-02 20:51:02,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.16666666666666) internal successors, (1219), 6 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:02,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:02,723 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:02,724 INFO L175 Difference]: Start difference. First operand has 299 places, 293 transitions, 591 flow. Second operand 6 states and 1219 transitions. [2022-11-02 20:51:02,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 292 transitions, 829 flow [2022-11-02 20:51:02,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 292 transitions, 828 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:51:02,730 INFO L231 Difference]: Finished difference. Result has 302 places, 292 transitions, 598 flow [2022-11-02 20:51:02,731 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=598, PETRI_PLACES=302, PETRI_TRANSITIONS=292} [2022-11-02 20:51:02,731 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, -14 predicate places. [2022-11-02 20:51:02,732 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 292 transitions, 598 flow [2022-11-02 20:51:02,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.33333333333334) internal successors, (1154), 6 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:02,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:02,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:02,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:51:02,733 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:02,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:02,734 INFO L85 PathProgramCache]: Analyzing trace with hash 722055751, now seen corresponding path program 1 times [2022-11-02 20:51:02,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:02,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211925174] [2022-11-02 20:51:02,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:02,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:03,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:03,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211925174] [2022-11-02 20:51:03,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211925174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:03,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:03,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:51:03,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99165742] [2022-11-02 20:51:03,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:03,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:03,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:03,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:03,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:03,508 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 313 [2022-11-02 20:51:03,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 292 transitions, 598 flow. Second operand has 6 states, 6 states have (on average 196.16666666666666) internal successors, (1177), 6 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:03,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:03,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 313 [2022-11-02 20:51:03,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:05,081 INFO L130 PetriNetUnfolder]: 1392/4481 cut-off events. [2022-11-02 20:51:05,081 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 20:51:05,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7440 conditions, 4481 events. 1392/4481 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 32521 event pairs, 181 based on Foata normal form. 0/4036 useless extension candidates. Maximal degree in co-relation 7356. Up to 1396 conditions per place. [2022-11-02 20:51:05,106 INFO L137 encePairwiseOnDemand]: 294/313 looper letters, 220 selfloop transitions, 38 changer transitions 0/433 dead transitions. [2022-11-02 20:51:05,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 433 transitions, 1396 flow [2022-11-02 20:51:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:05,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:51:05,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1376 transitions. [2022-11-02 20:51:05,110 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7326943556975506 [2022-11-02 20:51:05,111 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1376 transitions. [2022-11-02 20:51:05,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1376 transitions. [2022-11-02 20:51:05,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:05,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1376 transitions. [2022-11-02 20:51:05,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.33333333333334) internal successors, (1376), 6 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:05,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:05,119 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:05,119 INFO L175 Difference]: Start difference. First operand has 302 places, 292 transitions, 598 flow. Second operand 6 states and 1376 transitions. [2022-11-02 20:51:05,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 433 transitions, 1396 flow [2022-11-02 20:51:05,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 433 transitions, 1386 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:51:05,128 INFO L231 Difference]: Finished difference. Result has 306 places, 328 transitions, 846 flow [2022-11-02 20:51:05,129 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=846, PETRI_PLACES=306, PETRI_TRANSITIONS=328} [2022-11-02 20:51:05,129 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, -10 predicate places. [2022-11-02 20:51:05,130 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 328 transitions, 846 flow [2022-11-02 20:51:05,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.16666666666666) internal successors, (1177), 6 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:05,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:05,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:05,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:51:05,131 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:05,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:05,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1679495531, now seen corresponding path program 1 times [2022-11-02 20:51:05,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:05,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691336791] [2022-11-02 20:51:05,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:05,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:05,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:05,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:05,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691336791] [2022-11-02 20:51:05,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691336791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:05,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:05,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:51:05,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912183157] [2022-11-02 20:51:05,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:05,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:05,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:05,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:05,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:05,895 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 313 [2022-11-02 20:51:05,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 328 transitions, 846 flow. Second operand has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:05,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:05,898 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 313 [2022-11-02 20:51:05,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:07,258 INFO L130 PetriNetUnfolder]: 1425/4583 cut-off events. [2022-11-02 20:51:07,258 INFO L131 PetriNetUnfolder]: For 1048/1048 co-relation queries the response was YES. [2022-11-02 20:51:07,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8715 conditions, 4583 events. 1425/4583 cut-off events. For 1048/1048 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 33007 event pairs, 936 based on Foata normal form. 0/4136 useless extension candidates. Maximal degree in co-relation 8629. Up to 2730 conditions per place. [2022-11-02 20:51:07,293 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 237 selfloop transitions, 5 changer transitions 0/419 dead transitions. [2022-11-02 20:51:07,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 419 transitions, 1552 flow [2022-11-02 20:51:07,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:07,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:51:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1334 transitions. [2022-11-02 20:51:07,298 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7103301384451545 [2022-11-02 20:51:07,298 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1334 transitions. [2022-11-02 20:51:07,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1334 transitions. [2022-11-02 20:51:07,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:07,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1334 transitions. [2022-11-02 20:51:07,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 222.33333333333334) internal successors, (1334), 6 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:07,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:07,306 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:07,307 INFO L175 Difference]: Start difference. First operand has 306 places, 328 transitions, 846 flow. Second operand 6 states and 1334 transitions. [2022-11-02 20:51:07,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 419 transitions, 1552 flow [2022-11-02 20:51:07,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 419 transitions, 1552 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:51:07,322 INFO L231 Difference]: Finished difference. Result has 310 places, 327 transitions, 854 flow [2022-11-02 20:51:07,323 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=854, PETRI_PLACES=310, PETRI_TRANSITIONS=327} [2022-11-02 20:51:07,324 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, -6 predicate places. [2022-11-02 20:51:07,324 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 327 transitions, 854 flow [2022-11-02 20:51:07,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:07,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:07,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:07,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:51:07,326 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:07,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:07,327 INFO L85 PathProgramCache]: Analyzing trace with hash 2143879696, now seen corresponding path program 1 times [2022-11-02 20:51:07,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:07,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921346976] [2022-11-02 20:51:07,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:07,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:08,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:08,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:08,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921346976] [2022-11-02 20:51:08,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921346976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:08,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:08,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:51:08,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700520879] [2022-11-02 20:51:08,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:08,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:08,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:08,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:08,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:08,129 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 313 [2022-11-02 20:51:08,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 327 transitions, 854 flow. Second operand has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:08,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:08,131 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 313 [2022-11-02 20:51:08,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:09,892 INFO L130 PetriNetUnfolder]: 1814/5691 cut-off events. [2022-11-02 20:51:09,893 INFO L131 PetriNetUnfolder]: For 1339/1343 co-relation queries the response was YES. [2022-11-02 20:51:09,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10926 conditions, 5691 events. 1814/5691 cut-off events. For 1339/1343 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 44006 event pairs, 351 based on Foata normal form. 0/5243 useless extension candidates. Maximal degree in co-relation 10836. Up to 2174 conditions per place. [2022-11-02 20:51:09,935 INFO L137 encePairwiseOnDemand]: 292/313 looper letters, 265 selfloop transitions, 71 changer transitions 0/506 dead transitions. [2022-11-02 20:51:09,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 506 transitions, 2140 flow [2022-11-02 20:51:09,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:09,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:51:09,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1359 transitions. [2022-11-02 20:51:09,947 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7236421725239617 [2022-11-02 20:51:09,948 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1359 transitions. [2022-11-02 20:51:09,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1359 transitions. [2022-11-02 20:51:09,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:09,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1359 transitions. [2022-11-02 20:51:09,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 226.5) internal successors, (1359), 6 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:09,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:09,961 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:09,962 INFO L175 Difference]: Start difference. First operand has 310 places, 327 transitions, 854 flow. Second operand 6 states and 1359 transitions. [2022-11-02 20:51:09,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 506 transitions, 2140 flow [2022-11-02 20:51:09,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 506 transitions, 2090 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:51:09,974 INFO L231 Difference]: Finished difference. Result has 315 places, 396 transitions, 1502 flow [2022-11-02 20:51:09,975 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1502, PETRI_PLACES=315, PETRI_TRANSITIONS=396} [2022-11-02 20:51:09,975 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, -1 predicate places. [2022-11-02 20:51:09,975 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 396 transitions, 1502 flow [2022-11-02 20:51:09,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:09,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:09,977 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:09,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:51:09,977 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:09,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:09,978 INFO L85 PathProgramCache]: Analyzing trace with hash -162897296, now seen corresponding path program 1 times [2022-11-02 20:51:09,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:09,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188888964] [2022-11-02 20:51:09,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:09,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:10,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:10,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:10,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188888964] [2022-11-02 20:51:10,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188888964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:10,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:10,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:51:10,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266879581] [2022-11-02 20:51:10,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:10,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:10,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:10,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:10,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:10,889 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 313 [2022-11-02 20:51:10,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 396 transitions, 1502 flow. Second operand has 6 states, 6 states have (on average 197.66666666666666) internal successors, (1186), 6 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:10,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:10,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 313 [2022-11-02 20:51:10,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:12,597 INFO L130 PetriNetUnfolder]: 1933/6154 cut-off events. [2022-11-02 20:51:12,597 INFO L131 PetriNetUnfolder]: For 3616/3663 co-relation queries the response was YES. [2022-11-02 20:51:12,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14088 conditions, 6154 events. 1933/6154 cut-off events. For 3616/3663 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 48186 event pairs, 1000 based on Foata normal form. 0/5741 useless extension candidates. Maximal degree in co-relation 13997. Up to 3840 conditions per place. [2022-11-02 20:51:12,637 INFO L137 encePairwiseOnDemand]: 290/313 looper letters, 250 selfloop transitions, 89 changer transitions 0/515 dead transitions. [2022-11-02 20:51:12,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 515 transitions, 2700 flow [2022-11-02 20:51:12,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:12,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:51:12,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1333 transitions. [2022-11-02 20:51:12,641 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7097976570820022 [2022-11-02 20:51:12,641 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1333 transitions. [2022-11-02 20:51:12,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1333 transitions. [2022-11-02 20:51:12,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:12,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1333 transitions. [2022-11-02 20:51:12,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 222.16666666666666) internal successors, (1333), 6 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:12,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:12,650 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:12,650 INFO L175 Difference]: Start difference. First operand has 315 places, 396 transitions, 1502 flow. Second operand 6 states and 1333 transitions. [2022-11-02 20:51:12,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 515 transitions, 2700 flow [2022-11-02 20:51:12,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 515 transitions, 2700 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:51:12,676 INFO L231 Difference]: Finished difference. Result has 325 places, 480 transitions, 2304 flow [2022-11-02 20:51:12,676 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=1502, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2304, PETRI_PLACES=325, PETRI_TRANSITIONS=480} [2022-11-02 20:51:12,677 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 9 predicate places. [2022-11-02 20:51:12,678 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 480 transitions, 2304 flow [2022-11-02 20:51:12,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.66666666666666) internal successors, (1186), 6 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:12,678 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:12,679 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:12,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:51:12,679 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:12,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:12,680 INFO L85 PathProgramCache]: Analyzing trace with hash -747633893, now seen corresponding path program 1 times [2022-11-02 20:51:12,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:12,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413497571] [2022-11-02 20:51:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:12,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:12,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:12,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413497571] [2022-11-02 20:51:12,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413497571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:12,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:12,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:51:12,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228515633] [2022-11-02 20:51:12,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:12,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:12,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:12,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:12,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:12,930 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 313 [2022-11-02 20:51:12,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 480 transitions, 2304 flow. Second operand has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:12,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:12,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 313 [2022-11-02 20:51:12,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:13,341 INFO L130 PetriNetUnfolder]: 289/1946 cut-off events. [2022-11-02 20:51:13,343 INFO L131 PetriNetUnfolder]: For 992/1053 co-relation queries the response was YES. [2022-11-02 20:51:13,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3966 conditions, 1946 events. 289/1946 cut-off events. For 992/1053 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 13116 event pairs, 25 based on Foata normal form. 4/1864 useless extension candidates. Maximal degree in co-relation 3874. Up to 272 conditions per place. [2022-11-02 20:51:13,357 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 15 selfloop transitions, 6 changer transitions 0/420 dead transitions. [2022-11-02 20:51:13,357 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 420 transitions, 1782 flow [2022-11-02 20:51:13,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:13,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:51:13,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 917 transitions. [2022-11-02 20:51:13,360 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9765708200212992 [2022-11-02 20:51:13,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 917 transitions. [2022-11-02 20:51:13,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 917 transitions. [2022-11-02 20:51:13,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:13,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 917 transitions. [2022-11-02 20:51:13,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:13,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:13,366 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:13,366 INFO L175 Difference]: Start difference. First operand has 325 places, 480 transitions, 2304 flow. Second operand 3 states and 917 transitions. [2022-11-02 20:51:13,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 420 transitions, 1782 flow [2022-11-02 20:51:13,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 420 transitions, 1694 flow, removed 44 selfloop flow, removed 0 redundant places. [2022-11-02 20:51:13,385 INFO L231 Difference]: Finished difference. Result has 328 places, 418 transitions, 1674 flow [2022-11-02 20:51:13,386 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=1640, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1674, PETRI_PLACES=328, PETRI_TRANSITIONS=418} [2022-11-02 20:51:13,387 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 12 predicate places. [2022-11-02 20:51:13,387 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 418 transitions, 1674 flow [2022-11-02 20:51:13,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:13,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:13,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:13,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:51:13,388 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:13,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:13,389 INFO L85 PathProgramCache]: Analyzing trace with hash 324013885, now seen corresponding path program 1 times [2022-11-02 20:51:13,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:13,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123199379] [2022-11-02 20:51:13,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:13,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:14,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:14,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:14,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123199379] [2022-11-02 20:51:14,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123199379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:14,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:14,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:51:14,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476864105] [2022-11-02 20:51:14,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:14,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:14,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:14,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:14,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:14,331 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 313 [2022-11-02 20:51:14,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 418 transitions, 1674 flow. Second operand has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:14,333 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:14,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 313 [2022-11-02 20:51:14,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:16,069 INFO L130 PetriNetUnfolder]: 1230/4325 cut-off events. [2022-11-02 20:51:16,069 INFO L131 PetriNetUnfolder]: For 3311/3340 co-relation queries the response was YES. [2022-11-02 20:51:16,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10902 conditions, 4325 events. 1230/4325 cut-off events. For 3311/3340 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33137 event pairs, 209 based on Foata normal form. 0/4151 useless extension candidates. Maximal degree in co-relation 10803. Up to 1169 conditions per place. [2022-11-02 20:51:16,108 INFO L137 encePairwiseOnDemand]: 294/313 looper letters, 386 selfloop transitions, 124 changer transitions 4/694 dead transitions. [2022-11-02 20:51:16,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 694 transitions, 4268 flow [2022-11-02 20:51:16,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:16,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:51:16,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1421 transitions. [2022-11-02 20:51:16,113 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7566560170394037 [2022-11-02 20:51:16,113 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1421 transitions. [2022-11-02 20:51:16,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1421 transitions. [2022-11-02 20:51:16,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:16,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1421 transitions. [2022-11-02 20:51:16,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 236.83333333333334) internal successors, (1421), 6 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:16,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:16,122 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:16,122 INFO L175 Difference]: Start difference. First operand has 328 places, 418 transitions, 1674 flow. Second operand 6 states and 1421 transitions. [2022-11-02 20:51:16,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 694 transitions, 4268 flow [2022-11-02 20:51:16,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 694 transitions, 4262 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:51:16,153 INFO L231 Difference]: Finished difference. Result has 336 places, 520 transitions, 3050 flow [2022-11-02 20:51:16,154 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=1666, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=417, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3050, PETRI_PLACES=336, PETRI_TRANSITIONS=520} [2022-11-02 20:51:16,154 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 20 predicate places. [2022-11-02 20:51:16,155 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 520 transitions, 3050 flow [2022-11-02 20:51:16,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.83333333333334) internal successors, (1187), 6 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:16,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:16,156 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:16,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:51:16,156 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:16,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:16,157 INFO L85 PathProgramCache]: Analyzing trace with hash 632797486, now seen corresponding path program 1 times [2022-11-02 20:51:16,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:16,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55184880] [2022-11-02 20:51:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:16,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:17,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:17,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:17,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55184880] [2022-11-02 20:51:17,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55184880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:17,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:17,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:51:17,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412864434] [2022-11-02 20:51:17,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:17,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:51:17,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:17,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:51:17,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:51:17,053 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 313 [2022-11-02 20:51:17,054 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 520 transitions, 3050 flow. Second operand has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:17,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:17,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 313 [2022-11-02 20:51:17,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:18,970 INFO L130 PetriNetUnfolder]: 1281/4389 cut-off events. [2022-11-02 20:51:18,970 INFO L131 PetriNetUnfolder]: For 6064/6104 co-relation queries the response was YES. [2022-11-02 20:51:18,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12677 conditions, 4389 events. 1281/4389 cut-off events. For 6064/6104 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 33329 event pairs, 469 based on Foata normal form. 0/4261 useless extension candidates. Maximal degree in co-relation 12575. Up to 2356 conditions per place. [2022-11-02 20:51:19,017 INFO L137 encePairwiseOnDemand]: 307/313 looper letters, 420 selfloop transitions, 17 changer transitions 0/619 dead transitions. [2022-11-02 20:51:19,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 619 transitions, 4514 flow [2022-11-02 20:51:19,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:51:19,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:51:19,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1324 transitions. [2022-11-02 20:51:19,022 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7050053248136315 [2022-11-02 20:51:19,022 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1324 transitions. [2022-11-02 20:51:19,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1324 transitions. [2022-11-02 20:51:19,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:19,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1324 transitions. [2022-11-02 20:51:19,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 220.66666666666666) internal successors, (1324), 6 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:19,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:19,032 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:19,033 INFO L175 Difference]: Start difference. First operand has 336 places, 520 transitions, 3050 flow. Second operand 6 states and 1324 transitions. [2022-11-02 20:51:19,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 619 transitions, 4514 flow [2022-11-02 20:51:19,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 619 transitions, 4496 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-02 20:51:19,077 INFO L231 Difference]: Finished difference. Result has 340 places, 519 transitions, 3064 flow [2022-11-02 20:51:19,078 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=3030, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=502, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3064, PETRI_PLACES=340, PETRI_TRANSITIONS=519} [2022-11-02 20:51:19,079 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 24 predicate places. [2022-11-02 20:51:19,079 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 519 transitions, 3064 flow [2022-11-02 20:51:19,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:19,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:19,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:19,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-02 20:51:19,081 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:19,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:19,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1012259179, now seen corresponding path program 1 times [2022-11-02 20:51:19,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:19,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969683558] [2022-11-02 20:51:19,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:19,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:22,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:22,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:22,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969683558] [2022-11-02 20:51:22,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969683558] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:22,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:22,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-02 20:51:22,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665950354] [2022-11-02 20:51:22,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:22,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-02 20:51:22,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:22,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-02 20:51:22,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2022-11-02 20:51:22,129 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 313 [2022-11-02 20:51:22,137 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 519 transitions, 3064 flow. Second operand has 26 states, 26 states have (on average 135.03846153846155) internal successors, (3511), 26 states have internal predecessors, (3511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:22,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:22,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 313 [2022-11-02 20:51:22,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:26,058 INFO L130 PetriNetUnfolder]: 1856/5752 cut-off events. [2022-11-02 20:51:26,059 INFO L131 PetriNetUnfolder]: For 6962/6964 co-relation queries the response was YES. [2022-11-02 20:51:26,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16650 conditions, 5752 events. 1856/5752 cut-off events. For 6962/6964 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 45139 event pairs, 613 based on Foata normal form. 15/5613 useless extension candidates. Maximal degree in co-relation 16526. Up to 2303 conditions per place. [2022-11-02 20:51:26,107 INFO L137 encePairwiseOnDemand]: 275/313 looper letters, 566 selfloop transitions, 135 changer transitions 1/824 dead transitions. [2022-11-02 20:51:26,108 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 824 transitions, 6198 flow [2022-11-02 20:51:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-02 20:51:26,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-11-02 20:51:26,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 6402 transitions. [2022-11-02 20:51:26,123 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4446450895957772 [2022-11-02 20:51:26,123 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 6402 transitions. [2022-11-02 20:51:26,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 6402 transitions. [2022-11-02 20:51:26,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:26,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 6402 transitions. [2022-11-02 20:51:26,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 139.17391304347825) internal successors, (6402), 46 states have internal predecessors, (6402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:26,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 313.0) internal successors, (14711), 47 states have internal predecessors, (14711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:26,167 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 313.0) internal successors, (14711), 47 states have internal predecessors, (14711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:26,167 INFO L175 Difference]: Start difference. First operand has 340 places, 519 transitions, 3064 flow. Second operand 46 states and 6402 transitions. [2022-11-02 20:51:26,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 824 transitions, 6198 flow [2022-11-02 20:51:26,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 824 transitions, 6140 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:51:26,215 INFO L231 Difference]: Finished difference. Result has 395 places, 580 transitions, 3896 flow [2022-11-02 20:51:26,216 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=3030, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=3896, PETRI_PLACES=395, PETRI_TRANSITIONS=580} [2022-11-02 20:51:26,216 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 79 predicate places. [2022-11-02 20:51:26,217 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 580 transitions, 3896 flow [2022-11-02 20:51:26,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 135.03846153846155) internal successors, (3511), 26 states have internal predecessors, (3511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:26,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:26,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:26,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-02 20:51:26,219 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:26,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:26,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1176986028, now seen corresponding path program 1 times [2022-11-02 20:51:26,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:26,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390980036] [2022-11-02 20:51:26,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:26,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:29,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:29,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390980036] [2022-11-02 20:51:29,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390980036] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:29,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:29,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-02 20:51:29,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929431781] [2022-11-02 20:51:29,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:29,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-02 20:51:29,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:29,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-02 20:51:29,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2022-11-02 20:51:29,267 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-02 20:51:29,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 580 transitions, 3896 flow. Second operand has 27 states, 27 states have (on average 136.8148148148148) internal successors, (3694), 27 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:29,271 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:29,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-02 20:51:29,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:34,588 INFO L130 PetriNetUnfolder]: 2236/6905 cut-off events. [2022-11-02 20:51:34,588 INFO L131 PetriNetUnfolder]: For 12944/12954 co-relation queries the response was YES. [2022-11-02 20:51:34,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22202 conditions, 6905 events. 2236/6905 cut-off events. For 12944/12954 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 57082 event pairs, 473 based on Foata normal form. 20/6765 useless extension candidates. Maximal degree in co-relation 22056. Up to 1556 conditions per place. [2022-11-02 20:51:34,640 INFO L137 encePairwiseOnDemand]: 270/313 looper letters, 770 selfloop transitions, 187 changer transitions 4/1085 dead transitions. [2022-11-02 20:51:34,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 1085 transitions, 9184 flow [2022-11-02 20:51:34,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-02 20:51:34,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-11-02 20:51:34,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 5817 transitions. [2022-11-02 20:51:34,651 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.46461661341853033 [2022-11-02 20:51:34,652 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 5817 transitions. [2022-11-02 20:51:34,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 5817 transitions. [2022-11-02 20:51:34,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:34,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 5817 transitions. [2022-11-02 20:51:34,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 145.425) internal successors, (5817), 40 states have internal predecessors, (5817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:34,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 313.0) internal successors, (12833), 41 states have internal predecessors, (12833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:34,685 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 313.0) internal successors, (12833), 41 states have internal predecessors, (12833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:34,685 INFO L175 Difference]: Start difference. First operand has 395 places, 580 transitions, 3896 flow. Second operand 40 states and 5817 transitions. [2022-11-02 20:51:34,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 1085 transitions, 9184 flow [2022-11-02 20:51:34,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 1085 transitions, 9045 flow, removed 50 selfloop flow, removed 16 redundant places. [2022-11-02 20:51:34,785 INFO L231 Difference]: Finished difference. Result has 432 places, 682 transitions, 5586 flow [2022-11-02 20:51:34,786 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=3804, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=442, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=5586, PETRI_PLACES=432, PETRI_TRANSITIONS=682} [2022-11-02 20:51:34,787 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 116 predicate places. [2022-11-02 20:51:34,787 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 682 transitions, 5586 flow [2022-11-02 20:51:34,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 136.8148148148148) internal successors, (3694), 27 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:34,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:34,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:34,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-02 20:51:34,789 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:34,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:34,790 INFO L85 PathProgramCache]: Analyzing trace with hash 586038356, now seen corresponding path program 2 times [2022-11-02 20:51:34,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:34,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478898987] [2022-11-02 20:51:34,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:34,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:37,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:37,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:37,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478898987] [2022-11-02 20:51:37,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478898987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:37,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:37,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-02 20:51:37,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620700443] [2022-11-02 20:51:37,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:37,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-02 20:51:37,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:37,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-02 20:51:37,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2022-11-02 20:51:37,752 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-02 20:51:37,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 682 transitions, 5586 flow. Second operand has 26 states, 26 states have (on average 137.0) internal successors, (3562), 26 states have internal predecessors, (3562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:37,756 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:37,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-02 20:51:37,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:43,752 INFO L130 PetriNetUnfolder]: 2337/7198 cut-off events. [2022-11-02 20:51:43,753 INFO L131 PetriNetUnfolder]: For 18923/18933 co-relation queries the response was YES. [2022-11-02 20:51:43,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24992 conditions, 7198 events. 2337/7198 cut-off events. For 18923/18933 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 59762 event pairs, 392 based on Foata normal form. 25/7072 useless extension candidates. Maximal degree in co-relation 24829. Up to 1381 conditions per place. [2022-11-02 20:51:43,839 INFO L137 encePairwiseOnDemand]: 274/313 looper letters, 709 selfloop transitions, 217 changer transitions 4/1054 dead transitions. [2022-11-02 20:51:43,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 1054 transitions, 9818 flow [2022-11-02 20:51:43,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-02 20:51:43,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2022-11-02 20:51:43,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 6694 transitions. [2022-11-02 20:51:43,848 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.45503364829039494 [2022-11-02 20:51:43,849 INFO L72 ComplementDD]: Start complementDD. Operand 47 states and 6694 transitions. [2022-11-02 20:51:43,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 6694 transitions. [2022-11-02 20:51:43,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:43,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 47 states and 6694 transitions. [2022-11-02 20:51:43,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 48 states, 47 states have (on average 142.4255319148936) internal successors, (6694), 47 states have internal predecessors, (6694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:43,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 48 states, 48 states have (on average 313.0) internal successors, (15024), 48 states have internal predecessors, (15024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:43,883 INFO L81 ComplementDD]: Finished complementDD. Result has 48 states, 48 states have (on average 313.0) internal successors, (15024), 48 states have internal predecessors, (15024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:43,884 INFO L175 Difference]: Start difference. First operand has 432 places, 682 transitions, 5586 flow. Second operand 47 states and 6694 transitions. [2022-11-02 20:51:43,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 1054 transitions, 9818 flow [2022-11-02 20:51:44,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 1054 transitions, 9751 flow, removed 14 selfloop flow, removed 18 redundant places. [2022-11-02 20:51:44,083 INFO L231 Difference]: Finished difference. Result has 473 places, 738 transitions, 6726 flow [2022-11-02 20:51:44,084 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=5533, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=489, PETRI_DIFFERENCE_SUBTRAHEND_STATES=47, PETRI_FLOW=6726, PETRI_PLACES=473, PETRI_TRANSITIONS=738} [2022-11-02 20:51:44,084 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 157 predicate places. [2022-11-02 20:51:44,084 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 738 transitions, 6726 flow [2022-11-02 20:51:44,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 137.0) internal successors, (3562), 26 states have internal predecessors, (3562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:44,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:44,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:44,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-02 20:51:44,086 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:44,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:44,087 INFO L85 PathProgramCache]: Analyzing trace with hash 788979556, now seen corresponding path program 3 times [2022-11-02 20:51:44,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:44,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153128389] [2022-11-02 20:51:44,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:44,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:46,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:46,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:46,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153128389] [2022-11-02 20:51:46,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153128389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:46,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:46,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-02 20:51:46,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704284372] [2022-11-02 20:51:46,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:46,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-02 20:51:46,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:46,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-02 20:51:46,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2022-11-02 20:51:46,955 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-02 20:51:46,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 738 transitions, 6726 flow. Second operand has 27 states, 27 states have (on average 136.8148148148148) internal successors, (3694), 27 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:46,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:46,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-02 20:51:46,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:51:53,514 INFO L130 PetriNetUnfolder]: 2817/8500 cut-off events. [2022-11-02 20:51:53,514 INFO L131 PetriNetUnfolder]: For 29848/29860 co-relation queries the response was YES. [2022-11-02 20:51:53,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32330 conditions, 8500 events. 2817/8500 cut-off events. For 29848/29860 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 73489 event pairs, 542 based on Foata normal form. 27/8352 useless extension candidates. Maximal degree in co-relation 32150. Up to 1556 conditions per place. [2022-11-02 20:51:53,589 INFO L137 encePairwiseOnDemand]: 270/313 looper letters, 874 selfloop transitions, 253 changer transitions 4/1255 dead transitions. [2022-11-02 20:51:53,589 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 1255 transitions, 12939 flow [2022-11-02 20:51:53,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-02 20:51:53,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-02 20:51:53,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 6101 transitions. [2022-11-02 20:51:53,600 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.46409554237030276 [2022-11-02 20:51:53,600 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 6101 transitions. [2022-11-02 20:51:53,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 6101 transitions. [2022-11-02 20:51:53,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:51:53,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 6101 transitions. [2022-11-02 20:51:53,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 145.26190476190476) internal successors, (6101), 42 states have internal predecessors, (6101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:53,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:53,632 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:53,632 INFO L175 Difference]: Start difference. First operand has 473 places, 738 transitions, 6726 flow. Second operand 42 states and 6101 transitions. [2022-11-02 20:51:53,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 1255 transitions, 12939 flow [2022-11-02 20:51:53,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 1255 transitions, 12708 flow, removed 29 selfloop flow, removed 30 redundant places. [2022-11-02 20:51:53,912 INFO L231 Difference]: Finished difference. Result has 495 places, 827 transitions, 8776 flow [2022-11-02 20:51:53,913 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=6539, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=738, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=165, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=8776, PETRI_PLACES=495, PETRI_TRANSITIONS=827} [2022-11-02 20:51:53,913 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 179 predicate places. [2022-11-02 20:51:53,914 INFO L495 AbstractCegarLoop]: Abstraction has has 495 places, 827 transitions, 8776 flow [2022-11-02 20:51:53,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 136.8148148148148) internal successors, (3694), 27 states have internal predecessors, (3694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:53,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:51:53,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:53,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-02 20:51:53,915 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:51:53,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:53,916 INFO L85 PathProgramCache]: Analyzing trace with hash -968403808, now seen corresponding path program 4 times [2022-11-02 20:51:53,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:53,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253545527] [2022-11-02 20:51:53,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:53,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:56,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:51:56,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:56,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253545527] [2022-11-02 20:51:56,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253545527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:56,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:56,464 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-02 20:51:56,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771175270] [2022-11-02 20:51:56,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:56,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-02 20:51:56,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:56,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-02 20:51:56,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=570, Unknown=0, NotChecked=0, Total=650 [2022-11-02 20:51:56,469 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-02 20:51:56,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 495 places, 827 transitions, 8776 flow. Second operand has 26 states, 26 states have (on average 137.0) internal successors, (3562), 26 states have internal predecessors, (3562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:51:56,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:51:56,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-02 20:51:56,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:03,570 INFO L130 PetriNetUnfolder]: 3322/9943 cut-off events. [2022-11-02 20:52:03,570 INFO L131 PetriNetUnfolder]: For 46585/46599 co-relation queries the response was YES. [2022-11-02 20:52:03,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40215 conditions, 9943 events. 3322/9943 cut-off events. For 46585/46599 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 89068 event pairs, 619 based on Foata normal form. 29/9783 useless extension candidates. Maximal degree in co-relation 40022. Up to 1726 conditions per place. [2022-11-02 20:52:03,916 INFO L137 encePairwiseOnDemand]: 271/313 looper letters, 940 selfloop transitions, 325 changer transitions 4/1393 dead transitions. [2022-11-02 20:52:03,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 536 places, 1393 transitions, 16209 flow [2022-11-02 20:52:03,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-02 20:52:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-02 20:52:03,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 6122 transitions. [2022-11-02 20:52:03,935 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.46569298645975965 [2022-11-02 20:52:03,935 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 6122 transitions. [2022-11-02 20:52:03,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 6122 transitions. [2022-11-02 20:52:03,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:03,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 6122 transitions. [2022-11-02 20:52:03,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 145.76190476190476) internal successors, (6122), 42 states have internal predecessors, (6122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:03,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:03,971 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:03,971 INFO L175 Difference]: Start difference. First operand has 495 places, 827 transitions, 8776 flow. Second operand 42 states and 6122 transitions. [2022-11-02 20:52:03,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 536 places, 1393 transitions, 16209 flow [2022-11-02 20:52:04,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 1393 transitions, 16092 flow, removed 22 selfloop flow, removed 22 redundant places. [2022-11-02 20:52:04,411 INFO L231 Difference]: Finished difference. Result has 530 places, 936 transitions, 11780 flow [2022-11-02 20:52:04,412 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=8685, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=827, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=11780, PETRI_PLACES=530, PETRI_TRANSITIONS=936} [2022-11-02 20:52:04,413 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 214 predicate places. [2022-11-02 20:52:04,413 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 936 transitions, 11780 flow [2022-11-02 20:52:04,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 137.0) internal successors, (3562), 26 states have internal predecessors, (3562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:04,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:04,414 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:04,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-02 20:52:04,414 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:52:04,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:04,415 INFO L85 PathProgramCache]: Analyzing trace with hash 22649096, now seen corresponding path program 5 times [2022-11-02 20:52:04,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:04,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978619336] [2022-11-02 20:52:04,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:04,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:06,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:06,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:06,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978619336] [2022-11-02 20:52:06,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978619336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:06,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:06,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-02 20:52:06,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677097137] [2022-11-02 20:52:06,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:06,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-02 20:52:06,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:06,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-02 20:52:06,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-11-02 20:52:06,441 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 313 [2022-11-02 20:52:06,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 936 transitions, 11780 flow. Second operand has 25 states, 25 states have (on average 138.16) internal successors, (3454), 25 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:06,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:06,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 313 [2022-11-02 20:52:06,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:14,470 INFO L130 PetriNetUnfolder]: 3731/11143 cut-off events. [2022-11-02 20:52:14,470 INFO L131 PetriNetUnfolder]: For 69084/69098 co-relation queries the response was YES. [2022-11-02 20:52:14,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48181 conditions, 11143 events. 3731/11143 cut-off events. For 69084/69098 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 103033 event pairs, 711 based on Foata normal form. 29/10967 useless extension candidates. Maximal degree in co-relation 47968. Up to 2490 conditions per place. [2022-11-02 20:52:14,616 INFO L137 encePairwiseOnDemand]: 273/313 looper letters, 916 selfloop transitions, 334 changer transitions 3/1379 dead transitions. [2022-11-02 20:52:14,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 1379 transitions, 18487 flow [2022-11-02 20:52:14,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-02 20:52:14,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2022-11-02 20:52:14,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 5399 transitions. [2022-11-02 20:52:14,626 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4661946291339263 [2022-11-02 20:52:14,627 INFO L72 ComplementDD]: Start complementDD. Operand 37 states and 5399 transitions. [2022-11-02 20:52:14,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 5399 transitions. [2022-11-02 20:52:14,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:14,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 37 states and 5399 transitions. [2022-11-02 20:52:14,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 38 states, 37 states have (on average 145.9189189189189) internal successors, (5399), 37 states have internal predecessors, (5399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:14,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 38 states, 38 states have (on average 313.0) internal successors, (11894), 38 states have internal predecessors, (11894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:14,650 INFO L81 ComplementDD]: Finished complementDD. Result has 38 states, 38 states have (on average 313.0) internal successors, (11894), 38 states have internal predecessors, (11894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:14,650 INFO L175 Difference]: Start difference. First operand has 530 places, 936 transitions, 11780 flow. Second operand 37 states and 5399 transitions. [2022-11-02 20:52:14,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 1379 transitions, 18487 flow [2022-11-02 20:52:15,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 1379 transitions, 18340 flow, removed 53 selfloop flow, removed 17 redundant places. [2022-11-02 20:52:15,315 INFO L231 Difference]: Finished difference. Result has 560 places, 1012 transitions, 14495 flow [2022-11-02 20:52:15,316 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=11643, PETRI_DIFFERENCE_MINUEND_PLACES=513, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=936, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=259, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=14495, PETRI_PLACES=560, PETRI_TRANSITIONS=1012} [2022-11-02 20:52:15,316 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 244 predicate places. [2022-11-02 20:52:15,316 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 1012 transitions, 14495 flow [2022-11-02 20:52:15,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 138.16) internal successors, (3454), 25 states have internal predecessors, (3454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:15,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:15,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:15,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-02 20:52:15,317 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:52:15,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:15,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1616213939, now seen corresponding path program 1 times [2022-11-02 20:52:15,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:15,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87864186] [2022-11-02 20:52:15,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:15,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:15,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:15,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:15,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87864186] [2022-11-02 20:52:15,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87864186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:15,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:15,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:52:15,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134710186] [2022-11-02 20:52:15,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:15,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:52:15,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:15,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:52:15,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:52:15,921 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 313 [2022-11-02 20:52:15,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 1012 transitions, 14495 flow. Second operand has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:15,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:15,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 313 [2022-11-02 20:52:15,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:20,757 INFO L130 PetriNetUnfolder]: 3034/10100 cut-off events. [2022-11-02 20:52:20,757 INFO L131 PetriNetUnfolder]: For 74460/74716 co-relation queries the response was YES. [2022-11-02 20:52:20,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44772 conditions, 10100 events. 3034/10100 cut-off events. For 74460/74716 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 95748 event pairs, 1056 based on Foata normal form. 108/10061 useless extension candidates. Maximal degree in co-relation 44565. Up to 5822 conditions per place. [2022-11-02 20:52:20,950 INFO L137 encePairwiseOnDemand]: 290/313 looper letters, 635 selfloop transitions, 95 changer transitions 105/1146 dead transitions. [2022-11-02 20:52:20,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 565 places, 1146 transitions, 17327 flow [2022-11-02 20:52:20,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:52:20,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:52:20,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1331 transitions. [2022-11-02 20:52:20,954 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7087326943556975 [2022-11-02 20:52:20,954 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1331 transitions. [2022-11-02 20:52:20,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1331 transitions. [2022-11-02 20:52:20,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:20,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1331 transitions. [2022-11-02 20:52:20,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 221.83333333333334) internal successors, (1331), 6 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:20,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:20,960 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 313.0) internal successors, (2191), 7 states have internal predecessors, (2191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:20,960 INFO L175 Difference]: Start difference. First operand has 560 places, 1012 transitions, 14495 flow. Second operand 6 states and 1331 transitions. [2022-11-02 20:52:20,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 565 places, 1146 transitions, 17327 flow [2022-11-02 20:52:21,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 1146 transitions, 17191 flow, removed 44 selfloop flow, removed 19 redundant places. [2022-11-02 20:52:21,780 INFO L231 Difference]: Finished difference. Result has 551 places, 1008 transitions, 13983 flow [2022-11-02 20:52:21,781 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=14359, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1012, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=965, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13983, PETRI_PLACES=551, PETRI_TRANSITIONS=1008} [2022-11-02 20:52:21,781 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 235 predicate places. [2022-11-02 20:52:21,782 INFO L495 AbstractCegarLoop]: Abstraction has has 551 places, 1008 transitions, 13983 flow [2022-11-02 20:52:21,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:21,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:21,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:21,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-02 20:52:21,782 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:52:21,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:21,783 INFO L85 PathProgramCache]: Analyzing trace with hash -239434858, now seen corresponding path program 1 times [2022-11-02 20:52:21,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:21,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013451913] [2022-11-02 20:52:21,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:21,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:27,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:27,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013451913] [2022-11-02 20:52:27,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013451913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:27,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:27,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-02 20:52:27,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678710817] [2022-11-02 20:52:27,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:27,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-02 20:52:27,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:27,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-02 20:52:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2022-11-02 20:52:27,255 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-02 20:52:27,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 1008 transitions, 13983 flow. Second operand has 28 states, 28 states have (on average 136.82142857142858) internal successors, (3831), 28 states have internal predecessors, (3831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:27,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:27,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-02 20:52:27,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:37,482 INFO L130 PetriNetUnfolder]: 3820/11326 cut-off events. [2022-11-02 20:52:37,482 INFO L131 PetriNetUnfolder]: For 93452/93463 co-relation queries the response was YES. [2022-11-02 20:52:37,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53508 conditions, 11326 events. 3820/11326 cut-off events. For 93452/93463 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 103621 event pairs, 910 based on Foata normal form. 10/11245 useless extension candidates. Maximal degree in co-relation 53281. Up to 2870 conditions per place. [2022-11-02 20:52:37,738 INFO L137 encePairwiseOnDemand]: 278/313 looper letters, 917 selfloop transitions, 172 changer transitions 42/1255 dead transitions. [2022-11-02 20:52:37,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 1255 transitions, 18257 flow [2022-11-02 20:52:37,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-02 20:52:37,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-11-02 20:52:37,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 5939 transitions. [2022-11-02 20:52:37,746 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.45177240225163545 [2022-11-02 20:52:37,746 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 5939 transitions. [2022-11-02 20:52:37,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 5939 transitions. [2022-11-02 20:52:37,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:37,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 5939 transitions. [2022-11-02 20:52:37,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 141.4047619047619) internal successors, (5939), 42 states have internal predecessors, (5939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:37,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:37,771 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 313.0) internal successors, (13459), 43 states have internal predecessors, (13459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:37,771 INFO L175 Difference]: Start difference. First operand has 551 places, 1008 transitions, 13983 flow. Second operand 42 states and 5939 transitions. [2022-11-02 20:52:37,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 1255 transitions, 18257 flow [2022-11-02 20:52:38,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 557 places, 1255 transitions, 17875 flow, removed 123 selfloop flow, removed 11 redundant places. [2022-11-02 20:52:38,737 INFO L231 Difference]: Finished difference. Result has 559 places, 1017 transitions, 14251 flow [2022-11-02 20:52:38,738 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=13607, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1008, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=163, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=836, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=14251, PETRI_PLACES=559, PETRI_TRANSITIONS=1017} [2022-11-02 20:52:38,738 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 243 predicate places. [2022-11-02 20:52:38,738 INFO L495 AbstractCegarLoop]: Abstraction has has 559 places, 1017 transitions, 14251 flow [2022-11-02 20:52:38,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 136.82142857142858) internal successors, (3831), 28 states have internal predecessors, (3831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:38,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:38,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:38,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-02 20:52:38,740 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:52:38,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:38,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1799603930, now seen corresponding path program 2 times [2022-11-02 20:52:38,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:38,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015878615] [2022-11-02 20:52:38,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:38,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:44,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:44,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:44,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015878615] [2022-11-02 20:52:44,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015878615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:44,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:44,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-02 20:52:44,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074380445] [2022-11-02 20:52:44,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:44,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-02 20:52:44,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:44,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-02 20:52:44,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2022-11-02 20:52:44,407 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-02 20:52:44,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 1017 transitions, 14251 flow. Second operand has 28 states, 28 states have (on average 136.82142857142858) internal successors, (3831), 28 states have internal predecessors, (3831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:44,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:44,410 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-02 20:52:44,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:52:55,334 INFO L130 PetriNetUnfolder]: 4572/13313 cut-off events. [2022-11-02 20:52:55,334 INFO L131 PetriNetUnfolder]: For 116775/116786 co-relation queries the response was YES. [2022-11-02 20:52:55,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63837 conditions, 13313 events. 4572/13313 cut-off events. For 116775/116786 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 127947 event pairs, 1164 based on Foata normal form. 10/13152 useless extension candidates. Maximal degree in co-relation 63611. Up to 3874 conditions per place. [2022-11-02 20:52:55,576 INFO L137 encePairwiseOnDemand]: 277/313 looper letters, 1117 selfloop transitions, 265 changer transitions 43/1549 dead transitions. [2022-11-02 20:52:55,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 1549 transitions, 22646 flow [2022-11-02 20:52:55,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-11-02 20:52:55,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-11-02 20:52:55,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 6329 transitions. [2022-11-02 20:52:55,584 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4595556200987511 [2022-11-02 20:52:55,584 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 6329 transitions. [2022-11-02 20:52:55,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 6329 transitions. [2022-11-02 20:52:55,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:52:55,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 6329 transitions. [2022-11-02 20:52:55,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 143.8409090909091) internal successors, (6329), 44 states have internal predecessors, (6329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:55,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 313.0) internal successors, (14085), 45 states have internal predecessors, (14085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:55,609 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 313.0) internal successors, (14085), 45 states have internal predecessors, (14085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:55,609 INFO L175 Difference]: Start difference. First operand has 559 places, 1017 transitions, 14251 flow. Second operand 44 states and 6329 transitions. [2022-11-02 20:52:55,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 1549 transitions, 22646 flow [2022-11-02 20:52:56,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 564 places, 1549 transitions, 22281 flow, removed 22 selfloop flow, removed 37 redundant places. [2022-11-02 20:52:56,789 INFO L231 Difference]: Finished difference. Result has 569 places, 1102 transitions, 16886 flow [2022-11-02 20:52:56,790 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=13925, PETRI_DIFFERENCE_MINUEND_PLACES=521, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1017, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=181, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=796, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=16886, PETRI_PLACES=569, PETRI_TRANSITIONS=1102} [2022-11-02 20:52:56,790 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 253 predicate places. [2022-11-02 20:52:56,791 INFO L495 AbstractCegarLoop]: Abstraction has has 569 places, 1102 transitions, 16886 flow [2022-11-02 20:52:56,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 136.82142857142858) internal successors, (3831), 28 states have internal predecessors, (3831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:56,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:52:56,792 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:52:56,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-02 20:52:56,792 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:52:56,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:52:56,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1071928720, now seen corresponding path program 3 times [2022-11-02 20:52:56,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:52:56,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455477259] [2022-11-02 20:52:56,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:52:56,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:52:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:52:59,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:52:59,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:52:59,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455477259] [2022-11-02 20:52:59,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455477259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:52:59,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:52:59,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-02 20:52:59,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110296271] [2022-11-02 20:52:59,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:52:59,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-02 20:52:59,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:52:59,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-02 20:52:59,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2022-11-02 20:52:59,011 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-02 20:52:59,013 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 569 places, 1102 transitions, 16886 flow. Second operand has 26 states, 26 states have (on average 137.19230769230768) internal successors, (3567), 26 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:52:59,013 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:52:59,013 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-02 20:52:59,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:53:09,356 INFO L130 PetriNetUnfolder]: 4590/13512 cut-off events. [2022-11-02 20:53:09,356 INFO L131 PetriNetUnfolder]: For 126092/126097 co-relation queries the response was YES. [2022-11-02 20:53:09,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65511 conditions, 13512 events. 4590/13512 cut-off events. For 126092/126097 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 131006 event pairs, 862 based on Foata normal form. 10/13401 useless extension candidates. Maximal degree in co-relation 65280. Up to 3296 conditions per place. [2022-11-02 20:53:09,740 INFO L137 encePairwiseOnDemand]: 273/313 looper letters, 924 selfloop transitions, 371 changer transitions 24/1443 dead transitions. [2022-11-02 20:53:09,740 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 1443 transitions, 22294 flow [2022-11-02 20:53:09,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-02 20:53:09,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2022-11-02 20:53:09,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 6406 transitions. [2022-11-02 20:53:09,745 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4548100816471424 [2022-11-02 20:53:09,745 INFO L72 ComplementDD]: Start complementDD. Operand 45 states and 6406 transitions. [2022-11-02 20:53:09,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 6406 transitions. [2022-11-02 20:53:09,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:53:09,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 45 states and 6406 transitions. [2022-11-02 20:53:09,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 46 states, 45 states have (on average 142.35555555555555) internal successors, (6406), 45 states have internal predecessors, (6406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:09,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 46 states, 46 states have (on average 313.0) internal successors, (14398), 46 states have internal predecessors, (14398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:09,768 INFO L81 ComplementDD]: Finished complementDD. Result has 46 states, 46 states have (on average 313.0) internal successors, (14398), 46 states have internal predecessors, (14398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:09,769 INFO L175 Difference]: Start difference. First operand has 569 places, 1102 transitions, 16886 flow. Second operand 45 states and 6406 transitions. [2022-11-02 20:53:09,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 612 places, 1443 transitions, 22294 flow [2022-11-02 20:53:10,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 1443 transitions, 22164 flow, removed 21 selfloop flow, removed 25 redundant places. [2022-11-02 20:53:10,930 INFO L231 Difference]: Finished difference. Result has 591 places, 1114 transitions, 17929 flow [2022-11-02 20:53:10,931 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=16758, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=359, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=731, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=17929, PETRI_PLACES=591, PETRI_TRANSITIONS=1114} [2022-11-02 20:53:10,931 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 275 predicate places. [2022-11-02 20:53:10,932 INFO L495 AbstractCegarLoop]: Abstraction has has 591 places, 1114 transitions, 17929 flow [2022-11-02 20:53:10,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 137.19230769230768) internal successors, (3567), 26 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:10,933 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:53:10,933 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:10,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-02 20:53:10,934 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:53:10,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:10,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1031169134, now seen corresponding path program 4 times [2022-11-02 20:53:10,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:10,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289545292] [2022-11-02 20:53:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:10,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:11,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:12,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:12,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:12,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289545292] [2022-11-02 20:53:12,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289545292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:12,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:12,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-02 20:53:12,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503579176] [2022-11-02 20:53:12,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:12,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-02 20:53:12,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:12,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-02 20:53:12,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2022-11-02 20:53:12,864 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 313 [2022-11-02 20:53:12,866 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 591 places, 1114 transitions, 17929 flow. Second operand has 26 states, 26 states have (on average 137.19230769230768) internal successors, (3567), 26 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:12,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:53:12,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 313 [2022-11-02 20:53:12,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:53:24,236 INFO L130 PetriNetUnfolder]: 4589/13451 cut-off events. [2022-11-02 20:53:24,236 INFO L131 PetriNetUnfolder]: For 140351/140356 co-relation queries the response was YES. [2022-11-02 20:53:24,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67180 conditions, 13451 events. 4589/13451 cut-off events. For 140351/140356 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 130593 event pairs, 738 based on Foata normal form. 10/13350 useless extension candidates. Maximal degree in co-relation 66944. Up to 3372 conditions per place. [2022-11-02 20:53:24,484 INFO L137 encePairwiseOnDemand]: 272/313 looper letters, 910 selfloop transitions, 438 changer transitions 34/1506 dead transitions. [2022-11-02 20:53:24,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 642 places, 1506 transitions, 23439 flow [2022-11-02 20:53:24,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-02 20:53:24,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-11-02 20:53:24,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 7425 transitions. [2022-11-02 20:53:24,494 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4561931678545097 [2022-11-02 20:53:24,494 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 7425 transitions. [2022-11-02 20:53:24,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 7425 transitions. [2022-11-02 20:53:24,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:53:24,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 7425 transitions. [2022-11-02 20:53:24,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 142.78846153846155) internal successors, (7425), 52 states have internal predecessors, (7425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:24,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 313.0) internal successors, (16589), 53 states have internal predecessors, (16589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:24,526 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 313.0) internal successors, (16589), 53 states have internal predecessors, (16589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:24,526 INFO L175 Difference]: Start difference. First operand has 591 places, 1114 transitions, 17929 flow. Second operand 52 states and 7425 transitions. [2022-11-02 20:53:24,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 642 places, 1506 transitions, 23439 flow [2022-11-02 20:53:25,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 604 places, 1506 transitions, 22822 flow, removed 36 selfloop flow, removed 38 redundant places. [2022-11-02 20:53:25,879 INFO L231 Difference]: Finished difference. Result has 613 places, 1147 transitions, 18927 flow [2022-11-02 20:53:25,881 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=17331, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=405, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=18927, PETRI_PLACES=613, PETRI_TRANSITIONS=1147} [2022-11-02 20:53:25,881 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 297 predicate places. [2022-11-02 20:53:25,882 INFO L495 AbstractCegarLoop]: Abstraction has has 613 places, 1147 transitions, 18927 flow [2022-11-02 20:53:25,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 137.19230769230768) internal successors, (3567), 26 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:25,883 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:53:25,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:25,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-02 20:53:25,883 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:53:25,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:25,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1074619348, now seen corresponding path program 1 times [2022-11-02 20:53:25,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:25,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901066963] [2022-11-02 20:53:25,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:25,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:53:28,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:53:28,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:53:28,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901066963] [2022-11-02 20:53:28,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901066963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:53:28,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:53:28,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-02 20:53:28,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519773842] [2022-11-02 20:53:28,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:53:28,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-02 20:53:28,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:53:28,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-02 20:53:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2022-11-02 20:53:28,250 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 313 [2022-11-02 20:53:28,253 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 1147 transitions, 18927 flow. Second operand has 27 states, 27 states have (on average 136.0) internal successors, (3672), 27 states have internal predecessors, (3672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:28,254 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:53:28,254 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 313 [2022-11-02 20:53:28,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:53:39,749 INFO L130 PetriNetUnfolder]: 4992/14505 cut-off events. [2022-11-02 20:53:39,749 INFO L131 PetriNetUnfolder]: For 159518/159523 co-relation queries the response was YES. [2022-11-02 20:53:39,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73719 conditions, 14505 events. 4992/14505 cut-off events. For 159518/159523 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 139593 event pairs, 920 based on Foata normal form. 17/14363 useless extension candidates. Maximal degree in co-relation 73472. Up to 2743 conditions per place. [2022-11-02 20:53:39,946 INFO L137 encePairwiseOnDemand]: 277/313 looper letters, 1220 selfloop transitions, 229 changer transitions 128/1700 dead transitions. [2022-11-02 20:53:39,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 1700 transitions, 28355 flow [2022-11-02 20:53:39,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-02 20:53:39,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-11-02 20:53:39,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 7216 transitions. [2022-11-02 20:53:39,954 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.4520453548831673 [2022-11-02 20:53:39,954 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 7216 transitions. [2022-11-02 20:53:39,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 7216 transitions. [2022-11-02 20:53:39,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:53:39,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 7216 transitions. [2022-11-02 20:53:39,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 141.49019607843138) internal successors, (7216), 51 states have internal predecessors, (7216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:39,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 313.0) internal successors, (16276), 52 states have internal predecessors, (16276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:39,968 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 313.0) internal successors, (16276), 52 states have internal predecessors, (16276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:39,969 INFO L175 Difference]: Start difference. First operand has 613 places, 1147 transitions, 18927 flow. Second operand 51 states and 7216 transitions. [2022-11-02 20:53:39,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 663 places, 1700 transitions, 28355 flow [2022-11-02 20:53:41,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 613 places, 1700 transitions, 27342 flow, removed 214 selfloop flow, removed 50 redundant places. [2022-11-02 20:53:41,283 INFO L231 Difference]: Finished difference. Result has 625 places, 1191 transitions, 19097 flow [2022-11-02 20:53:41,284 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=18210, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=19097, PETRI_PLACES=625, PETRI_TRANSITIONS=1191} [2022-11-02 20:53:41,284 INFO L287 CegarLoopForPetriNet]: 316 programPoint places, 309 predicate places. [2022-11-02 20:53:41,284 INFO L495 AbstractCegarLoop]: Abstraction has has 625 places, 1191 transitions, 19097 flow [2022-11-02 20:53:41,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 136.0) internal successors, (3672), 27 states have internal predecessors, (3672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:53:41,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:53:41,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:53:41,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-02 20:53:41,285 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-02 20:53:41,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:53:41,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1927973101, now seen corresponding path program 1 times [2022-11-02 20:53:41,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:53:41,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838754612] [2022-11-02 20:53:41,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:53:41,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:53:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat