./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro --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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b --- 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-8393723 [2022-11-18 20:31:23,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:31:23,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:31:23,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:31:23,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:31:23,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:31:23,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:31:23,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:31:23,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:31:23,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:31:23,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:31:23,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:31:23,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:31:23,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:31:23,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:31:23,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:31:23,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:31:23,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:31:23,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:31:23,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:31:23,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:31:23,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:31:23,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:31:23,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:31:23,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:31:23,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:31:23,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:31:23,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:31:23,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:31:23,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:31:23,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:31:23,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:31:23,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:31:23,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:31:23,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:31:23,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:31:23,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:31:23,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:31:23,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:31:23,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:31:23,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:31:23,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:31:23,461 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:31:23,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:31:23,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:31:23,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:31:23,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:31:23,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:31:23,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:31:23,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:31:23,464 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:31:23,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:31:23,464 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:31:23,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:31:23,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:31:23,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:31:23,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:31:23,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:31:23,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:31:23,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:31:23,466 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:31:23,466 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:31:23,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:31:23,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:31:23,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:31:23,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:31:23,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:31:23,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:31:23,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:31:23,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:31:23,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:31:23,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:31:23,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:31:23,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:31:23,468 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:31:23,468 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:31:23,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:31:23,469 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_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b [2022-11-18 20:31:23,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:31:23,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:31:23,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:31:23,798 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:31:23,800 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:31:23,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2022-11-18 20:31:23,874 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/data/e427628dd/6b0464b91e5b4b369e44b8ea90401073/FLAG2d4dae954 [2022-11-18 20:31:24,479 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:31:24,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2022-11-18 20:31:24,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/data/e427628dd/6b0464b91e5b4b369e44b8ea90401073/FLAG2d4dae954 [2022-11-18 20:31:24,761 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/data/e427628dd/6b0464b91e5b4b369e44b8ea90401073 [2022-11-18 20:31:24,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:31:24,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:31:24,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:31:24,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:31:24,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:31:24,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:31:24" (1/1) ... [2022-11-18 20:31:24,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51ef63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:24, skipping insertion in model container [2022-11-18 20:31:24,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:31:24" (1/1) ... [2022-11-18 20:31:24,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:31:24,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:31:25,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:31:25,801 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:31:25,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:31:25,959 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:31:25,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25 WrapperNode [2022-11-18 20:31:25,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:31:25,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:31:25,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:31:25,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:31:25,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (1/1) ... [2022-11-18 20:31:25,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (1/1) ... [2022-11-18 20:31:26,093 INFO L138 Inliner]: procedures = 370, calls = 37, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 353 [2022-11-18 20:31:26,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:31:26,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:31:26,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:31:26,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:31:26,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (1/1) ... [2022-11-18 20:31:26,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (1/1) ... [2022-11-18 20:31:26,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (1/1) ... [2022-11-18 20:31:26,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (1/1) ... [2022-11-18 20:31:26,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (1/1) ... [2022-11-18 20:31:26,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (1/1) ... [2022-11-18 20:31:26,189 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (1/1) ... [2022-11-18 20:31:26,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (1/1) ... [2022-11-18 20:31:26,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:31:26,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:31:26,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:31:26,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:31:26,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (1/1) ... [2022-11-18 20:31:26,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:31:26,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:26,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:26,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:31:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:31:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:31:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:31:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:31:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:31:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 20:31:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:31:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:31:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:31:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 20:31:26,287 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 20:31:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:31:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:31:26,293 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:31:26,449 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:31:26,451 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:31:27,327 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:31:27,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:31:27,347 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:31:27,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:31:27 BoogieIcfgContainer [2022-11-18 20:31:27,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:31:27,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:31:27,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:31:27,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:31:27,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:31:24" (1/3) ... [2022-11-18 20:31:27,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:31:27, skipping insertion in model container [2022-11-18 20:31:27,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:25" (2/3) ... [2022-11-18 20:31:27,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:31:27, skipping insertion in model container [2022-11-18 20:31:27,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:31:27" (3/3) ... [2022-11-18 20:31:27,361 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2022-11-18 20:31:27,370 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:31:27,380 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:31:27,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-11-18 20:31:27,380 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:31:27,505 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:31:27,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 430 transitions, 865 flow [2022-11-18 20:31:27,726 INFO L130 PetriNetUnfolder]: 5/429 cut-off events. [2022-11-18 20:31:27,727 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:31:27,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 433 conditions, 429 events. 5/429 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 363 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 303. Up to 2 conditions per place. [2022-11-18 20:31:27,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 429 places, 430 transitions, 865 flow [2022-11-18 20:31:27,741 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 428 places, 429 transitions, 861 flow [2022-11-18 20:31:27,751 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:31:27,757 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;@1b57be7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:31:27,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2022-11-18 20:31:27,767 INFO L130 PetriNetUnfolder]: 2/51 cut-off events. [2022-11-18 20:31:27,767 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:31:27,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:27,768 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:27,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:27,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:27,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1281122193, now seen corresponding path program 1 times [2022-11-18 20:31:27,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:27,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74078466] [2022-11-18 20:31:27,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:27,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:28,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:28,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74078466] [2022-11-18 20:31:28,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74078466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:28,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:28,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:31:28,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623546170] [2022-11-18 20:31:28,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:28,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:31:28,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:28,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:31:28,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:31:28,732 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 430 [2022-11-18 20:31:28,739 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 429 transitions, 861 flow. Second operand has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:28,739 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:28,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 430 [2022-11-18 20:31:28,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:29,891 INFO L130 PetriNetUnfolder]: 649/2251 cut-off events. [2022-11-18 20:31:29,892 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 20:31:29,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3757 conditions, 2251 events. 649/2251 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11666 event pairs, 648 based on Foata normal form. 18/2005 useless extension candidates. Maximal degree in co-relation 3304. Up to 1482 conditions per place. [2022-11-18 20:31:29,915 INFO L137 encePairwiseOnDemand]: 402/430 looper letters, 185 selfloop transitions, 20 changer transitions 2/421 dead transitions. [2022-11-18 20:31:29,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 421 transitions, 1255 flow [2022-11-18 20:31:29,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:31:29,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:31:29,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1515 transitions. [2022-11-18 20:31:29,939 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5872093023255814 [2022-11-18 20:31:29,940 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1515 transitions. [2022-11-18 20:31:29,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1515 transitions. [2022-11-18 20:31:29,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:29,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1515 transitions. [2022-11-18 20:31:29,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 252.5) internal successors, (1515), 6 states have internal predecessors, (1515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:29,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:29,969 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:29,971 INFO L175 Difference]: Start difference. First operand has 428 places, 429 transitions, 861 flow. Second operand 6 states and 1515 transitions. [2022-11-18 20:31:29,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 421 transitions, 1255 flow [2022-11-18 20:31:29,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 421 transitions, 1254 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:31:29,992 INFO L231 Difference]: Finished difference. Result has 428 places, 419 transitions, 880 flow [2022-11-18 20:31:29,994 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=880, PETRI_PLACES=428, PETRI_TRANSITIONS=419} [2022-11-18 20:31:30,000 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 0 predicate places. [2022-11-18 20:31:30,000 INFO L495 AbstractCegarLoop]: Abstraction has has 428 places, 419 transitions, 880 flow [2022-11-18 20:31:30,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:30,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:30,002 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:30,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:31:30,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:30,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:30,004 INFO L85 PathProgramCache]: Analyzing trace with hash 6380780, now seen corresponding path program 1 times [2022-11-18 20:31:30,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:30,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656886764] [2022-11-18 20:31:30,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:30,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:30,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:30,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:30,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656886764] [2022-11-18 20:31:30,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656886764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:30,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:30,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:31:30,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700748578] [2022-11-18 20:31:30,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:30,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:31:30,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:30,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:31:30,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:31:30,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 430 [2022-11-18 20:31:30,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 419 transitions, 880 flow. Second operand has 6 states, 6 states have (on average 219.5) internal successors, (1317), 6 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:30,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:30,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 430 [2022-11-18 20:31:30,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:31,488 INFO L130 PetriNetUnfolder]: 649/2245 cut-off events. [2022-11-18 20:31:31,489 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:31:31,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3767 conditions, 2245 events. 649/2245 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11643 event pairs, 648 based on Foata normal form. 0/1987 useless extension candidates. Maximal degree in co-relation 3398. Up to 1478 conditions per place. [2022-11-18 20:31:31,500 INFO L137 encePairwiseOnDemand]: 406/430 looper letters, 181 selfloop transitions, 20 changer transitions 0/415 dead transitions. [2022-11-18 20:31:31,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 415 transitions, 1274 flow [2022-11-18 20:31:31,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:31:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:31:31,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1507 transitions. [2022-11-18 20:31:31,505 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.584108527131783 [2022-11-18 20:31:31,505 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1507 transitions. [2022-11-18 20:31:31,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1507 transitions. [2022-11-18 20:31:31,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:31,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1507 transitions. [2022-11-18 20:31:31,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 251.16666666666666) internal successors, (1507), 6 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:31,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:31,517 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:31,517 INFO L175 Difference]: Start difference. First operand has 428 places, 419 transitions, 880 flow. Second operand 6 states and 1507 transitions. [2022-11-18 20:31:31,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 415 transitions, 1274 flow [2022-11-18 20:31:31,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 415 transitions, 1234 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:31:31,528 INFO L231 Difference]: Finished difference. Result has 422 places, 415 transitions, 872 flow [2022-11-18 20:31:31,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=872, PETRI_PLACES=422, PETRI_TRANSITIONS=415} [2022-11-18 20:31:31,530 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -6 predicate places. [2022-11-18 20:31:31,530 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 415 transitions, 872 flow [2022-11-18 20:31:31,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.5) internal successors, (1317), 6 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:31,532 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:31,532 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:31,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:31:31,533 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:31,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:31,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1065517115, now seen corresponding path program 1 times [2022-11-18 20:31:31,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:31,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033067987] [2022-11-18 20:31:31,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:31,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:32,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:32,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:32,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033067987] [2022-11-18 20:31:32,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033067987] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:32,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:32,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:31:32,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199127357] [2022-11-18 20:31:32,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:32,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:31:32,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:32,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:31:32,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:31:32,050 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 430 [2022-11-18 20:31:32,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 415 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:32,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:32,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 430 [2022-11-18 20:31:32,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:33,087 INFO L130 PetriNetUnfolder]: 704/2363 cut-off events. [2022-11-18 20:31:33,087 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:31:33,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3983 conditions, 2363 events. 704/2363 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 12348 event pairs, 703 based on Foata normal form. 0/2096 useless extension candidates. Maximal degree in co-relation 3613. Up to 1591 conditions per place. [2022-11-18 20:31:33,097 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 184 selfloop transitions, 5 changer transitions 0/414 dead transitions. [2022-11-18 20:31:33,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 414 transitions, 1248 flow [2022-11-18 20:31:33,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:31:33,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:31:33,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1558 transitions. [2022-11-18 20:31:33,102 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.603875968992248 [2022-11-18 20:31:33,102 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1558 transitions. [2022-11-18 20:31:33,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1558 transitions. [2022-11-18 20:31:33,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:33,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1558 transitions. [2022-11-18 20:31:33,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 259.6666666666667) internal successors, (1558), 6 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:33,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:33,113 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:33,113 INFO L175 Difference]: Start difference. First operand has 422 places, 415 transitions, 872 flow. Second operand 6 states and 1558 transitions. [2022-11-18 20:31:33,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 414 transitions, 1248 flow [2022-11-18 20:31:33,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 414 transitions, 1208 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:31:33,121 INFO L231 Difference]: Finished difference. Result has 421 places, 414 transitions, 840 flow [2022-11-18 20:31:33,122 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=840, PETRI_PLACES=421, PETRI_TRANSITIONS=414} [2022-11-18 20:31:33,123 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -7 predicate places. [2022-11-18 20:31:33,123 INFO L495 AbstractCegarLoop]: Abstraction has has 421 places, 414 transitions, 840 flow [2022-11-18 20:31:33,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:33,124 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:33,124 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:33,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:31:33,125 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:33,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:33,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1388663336, now seen corresponding path program 1 times [2022-11-18 20:31:33,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:33,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801043336] [2022-11-18 20:31:33,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:33,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:33,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:33,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:33,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801043336] [2022-11-18 20:31:33,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801043336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:33,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:33,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:31:33,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52183209] [2022-11-18 20:31:33,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:33,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:33,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:33,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:33,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:33,195 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 430 [2022-11-18 20:31:33,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 414 transitions, 840 flow. Second operand has 3 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:33,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:33,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 430 [2022-11-18 20:31:33,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:33,399 INFO L130 PetriNetUnfolder]: 1/523 cut-off events. [2022-11-18 20:31:33,399 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:31:33,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 523 events. 1/523 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 333 event pairs, 0 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 80. Up to 22 conditions per place. [2022-11-18 20:31:33,401 INFO L137 encePairwiseOnDemand]: 427/430 looper letters, 36 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2022-11-18 20:31:33,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 431 transitions, 958 flow [2022-11-18 20:31:33,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:33,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:33,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1251 transitions. [2022-11-18 20:31:33,404 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9697674418604652 [2022-11-18 20:31:33,404 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1251 transitions. [2022-11-18 20:31:33,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1251 transitions. [2022-11-18 20:31:33,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:33,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1251 transitions. [2022-11-18 20:31:33,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 417.0) internal successors, (1251), 3 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:33,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 430.0) internal successors, (1720), 4 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:33,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 430.0) internal successors, (1720), 4 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:33,415 INFO L175 Difference]: Start difference. First operand has 421 places, 414 transitions, 840 flow. Second operand 3 states and 1251 transitions. [2022-11-18 20:31:33,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 431 transitions, 958 flow [2022-11-18 20:31:33,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 431 transitions, 940 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:31:33,425 INFO L231 Difference]: Finished difference. Result has 419 places, 415 transitions, 842 flow [2022-11-18 20:31:33,426 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=842, PETRI_PLACES=419, PETRI_TRANSITIONS=415} [2022-11-18 20:31:33,427 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -9 predicate places. [2022-11-18 20:31:33,427 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 415 transitions, 842 flow [2022-11-18 20:31:33,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:33,428 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:33,428 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:33,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:31:33,429 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:33,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash -514088664, now seen corresponding path program 1 times [2022-11-18 20:31:33,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:33,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172207712] [2022-11-18 20:31:33,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:33,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:34,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:34,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:34,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172207712] [2022-11-18 20:31:34,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172207712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:34,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:34,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:31:34,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216224478] [2022-11-18 20:31:34,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:34,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:31:34,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:34,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:31:34,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:31:34,062 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 430 [2022-11-18 20:31:34,064 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 415 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 236.33333333333334) internal successors, (1418), 6 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:34,064 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:34,064 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 430 [2022-11-18 20:31:34,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:34,932 INFO L130 PetriNetUnfolder]: 704/2470 cut-off events. [2022-11-18 20:31:34,933 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:31:34,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4127 conditions, 2470 events. 704/2470 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 12373 event pairs, 703 based on Foata normal form. 0/2202 useless extension candidates. Maximal degree in co-relation 3939. Up to 1625 conditions per place. [2022-11-18 20:31:34,944 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 182 selfloop transitions, 5 changer transitions 0/414 dead transitions. [2022-11-18 20:31:34,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 414 transitions, 1214 flow [2022-11-18 20:31:34,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:31:34,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:31:34,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1567 transitions. [2022-11-18 20:31:34,949 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6073643410852713 [2022-11-18 20:31:34,949 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1567 transitions. [2022-11-18 20:31:34,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1567 transitions. [2022-11-18 20:31:34,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:34,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1567 transitions. [2022-11-18 20:31:34,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 261.1666666666667) internal successors, (1567), 6 states have internal predecessors, (1567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:34,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:34,959 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:34,959 INFO L175 Difference]: Start difference. First operand has 419 places, 415 transitions, 842 flow. Second operand 6 states and 1567 transitions. [2022-11-18 20:31:34,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 414 transitions, 1214 flow [2022-11-18 20:31:34,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 414 transitions, 1212 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 20:31:34,970 INFO L231 Difference]: Finished difference. Result has 422 places, 414 transitions, 848 flow [2022-11-18 20:31:34,971 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=848, PETRI_PLACES=422, PETRI_TRANSITIONS=414} [2022-11-18 20:31:34,973 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -6 predicate places. [2022-11-18 20:31:34,973 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 414 transitions, 848 flow [2022-11-18 20:31:34,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 236.33333333333334) internal successors, (1418), 6 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:34,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:34,974 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:34,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:31:34,975 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:34,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:34,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1322795057, now seen corresponding path program 1 times [2022-11-18 20:31:34,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:34,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312118407] [2022-11-18 20:31:34,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:34,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:35,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:35,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312118407] [2022-11-18 20:31:35,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312118407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:35,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:35,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:31:35,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458322337] [2022-11-18 20:31:35,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:35,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:31:35,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:35,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:31:35,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:31:35,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 430 [2022-11-18 20:31:35,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 414 transitions, 848 flow. Second operand has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:35,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:35,653 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 430 [2022-11-18 20:31:35,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:36,575 INFO L130 PetriNetUnfolder]: 649/2347 cut-off events. [2022-11-18 20:31:36,575 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:31:36,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3894 conditions, 2347 events. 649/2347 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11646 event pairs, 648 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 3669. Up to 1504 conditions per place. [2022-11-18 20:31:36,585 INFO L137 encePairwiseOnDemand]: 412/430 looper letters, 165 selfloop transitions, 15 changer transitions 0/411 dead transitions. [2022-11-18 20:31:36,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 411 transitions, 1202 flow [2022-11-18 20:31:36,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:31:36,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:31:36,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1581 transitions. [2022-11-18 20:31:36,590 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6127906976744186 [2022-11-18 20:31:36,590 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1581 transitions. [2022-11-18 20:31:36,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1581 transitions. [2022-11-18 20:31:36,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:36,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1581 transitions. [2022-11-18 20:31:36,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 263.5) internal successors, (1581), 6 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:36,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:36,599 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:36,600 INFO L175 Difference]: Start difference. First operand has 422 places, 414 transitions, 848 flow. Second operand 6 states and 1581 transitions. [2022-11-18 20:31:36,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 424 places, 411 transitions, 1202 flow [2022-11-18 20:31:36,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 411 transitions, 1192 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:31:36,608 INFO L231 Difference]: Finished difference. Result has 419 places, 411 transitions, 862 flow [2022-11-18 20:31:36,608 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=414, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=419, PETRI_TRANSITIONS=411} [2022-11-18 20:31:36,609 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -9 predicate places. [2022-11-18 20:31:36,609 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 411 transitions, 862 flow [2022-11-18 20:31:36,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 239.33333333333334) internal successors, (1436), 6 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:36,610 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:36,611 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:36,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:31:36,611 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:36,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:36,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1069798974, now seen corresponding path program 1 times [2022-11-18 20:31:36,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:36,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178042927] [2022-11-18 20:31:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:36,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:37,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:37,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:37,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178042927] [2022-11-18 20:31:37,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178042927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:37,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:37,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:31:37,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727271301] [2022-11-18 20:31:37,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:37,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:31:37,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:37,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:31:37,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:31:37,144 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 430 [2022-11-18 20:31:37,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 411 transitions, 862 flow. Second operand has 6 states, 6 states have (on average 234.5) internal successors, (1407), 6 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:37,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:37,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 430 [2022-11-18 20:31:37,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:37,910 INFO L130 PetriNetUnfolder]: 649/2343 cut-off events. [2022-11-18 20:31:37,910 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:31:37,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3904 conditions, 2343 events. 649/2343 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11634 event pairs, 648 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 3553. Up to 1512 conditions per place. [2022-11-18 20:31:37,921 INFO L137 encePairwiseOnDemand]: 412/430 looper letters, 168 selfloop transitions, 15 changer transitions 0/408 dead transitions. [2022-11-18 20:31:37,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 408 transitions, 1222 flow [2022-11-18 20:31:37,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:31:37,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:31:37,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1548 transitions. [2022-11-18 20:31:37,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-11-18 20:31:37,928 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1548 transitions. [2022-11-18 20:31:37,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1548 transitions. [2022-11-18 20:31:37,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:37,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1548 transitions. [2022-11-18 20:31:37,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 258.0) internal successors, (1548), 6 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:37,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:37,938 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:37,939 INFO L175 Difference]: Start difference. First operand has 419 places, 411 transitions, 862 flow. Second operand 6 states and 1548 transitions. [2022-11-18 20:31:37,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 408 transitions, 1222 flow [2022-11-18 20:31:37,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 408 transitions, 1192 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:31:37,948 INFO L231 Difference]: Finished difference. Result has 416 places, 408 transitions, 856 flow [2022-11-18 20:31:37,949 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=856, PETRI_PLACES=416, PETRI_TRANSITIONS=408} [2022-11-18 20:31:37,950 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -12 predicate places. [2022-11-18 20:31:37,950 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 408 transitions, 856 flow [2022-11-18 20:31:37,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 234.5) internal successors, (1407), 6 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:37,951 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:37,951 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:37,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:31:37,952 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:37,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:37,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1313316697, now seen corresponding path program 1 times [2022-11-18 20:31:37,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:37,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580470224] [2022-11-18 20:31:37,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:37,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:38,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:38,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580470224] [2022-11-18 20:31:38,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580470224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:38,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:38,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:31:38,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360809472] [2022-11-18 20:31:38,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:38,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:31:38,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:38,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:31:38,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:31:38,571 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 430 [2022-11-18 20:31:38,573 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 408 transitions, 856 flow. Second operand has 6 states, 6 states have (on average 235.33333333333334) internal successors, (1412), 6 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:38,573 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:38,573 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 430 [2022-11-18 20:31:38,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:39,589 INFO L130 PetriNetUnfolder]: 649/2339 cut-off events. [2022-11-18 20:31:39,589 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:31:39,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3896 conditions, 2339 events. 649/2339 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 11609 event pairs, 648 based on Foata normal form. 0/2093 useless extension candidates. Maximal degree in co-relation 3549. Up to 1508 conditions per place. [2022-11-18 20:31:39,601 INFO L137 encePairwiseOnDemand]: 412/430 looper letters, 165 selfloop transitions, 15 changer transitions 0/405 dead transitions. [2022-11-18 20:31:39,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 405 transitions, 1210 flow [2022-11-18 20:31:39,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:31:39,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:31:39,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1545 transitions. [2022-11-18 20:31:39,607 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5988372093023255 [2022-11-18 20:31:39,607 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1545 transitions. [2022-11-18 20:31:39,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1545 transitions. [2022-11-18 20:31:39,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:39,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1545 transitions. [2022-11-18 20:31:39,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 257.5) internal successors, (1545), 6 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:39,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:39,618 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:39,618 INFO L175 Difference]: Start difference. First operand has 416 places, 408 transitions, 856 flow. Second operand 6 states and 1545 transitions. [2022-11-18 20:31:39,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 405 transitions, 1210 flow [2022-11-18 20:31:39,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 405 transitions, 1180 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:31:39,629 INFO L231 Difference]: Finished difference. Result has 413 places, 405 transitions, 850 flow [2022-11-18 20:31:39,629 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=850, PETRI_PLACES=413, PETRI_TRANSITIONS=405} [2022-11-18 20:31:39,630 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -15 predicate places. [2022-11-18 20:31:39,630 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 405 transitions, 850 flow [2022-11-18 20:31:39,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.33333333333334) internal successors, (1412), 6 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:39,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:39,632 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:39,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:31:39,633 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:39,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:39,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1077547052, now seen corresponding path program 1 times [2022-11-18 20:31:39,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:39,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640536385] [2022-11-18 20:31:39,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:39,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:39,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:39,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640536385] [2022-11-18 20:31:39,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640536385] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:31:39,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046472201] [2022-11-18 20:31:39,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:39,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:39,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:39,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:31:39,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:31:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:40,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:31:40,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:40,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:40,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:31:40,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:40,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046472201] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:31:40,745 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:31:40,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 20:31:40,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282941316] [2022-11-18 20:31:40,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:31:40,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:31:40,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:40,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:31:40,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:31:40,757 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 430 [2022-11-18 20:31:40,763 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 405 transitions, 850 flow. Second operand has 10 states, 10 states have (on average 408.6) internal successors, (4086), 10 states have internal predecessors, (4086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:40,763 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:40,763 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 430 [2022-11-18 20:31:40,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:41,024 INFO L130 PetriNetUnfolder]: 1/617 cut-off events. [2022-11-18 20:31:41,024 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:31:41,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 617 events. 1/617 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 2/607 useless extension candidates. Maximal degree in co-relation 94. Up to 17 conditions per place. [2022-11-18 20:31:41,026 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 47 selfloop transitions, 9 changer transitions 0/439 dead transitions. [2022-11-18 20:31:41,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 439 transitions, 1032 flow [2022-11-18 20:31:41,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:31:41,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 20:31:41,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3685 transitions. [2022-11-18 20:31:41,034 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9521963824289406 [2022-11-18 20:31:41,034 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 3685 transitions. [2022-11-18 20:31:41,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 3685 transitions. [2022-11-18 20:31:41,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:41,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 3685 transitions. [2022-11-18 20:31:41,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 409.44444444444446) internal successors, (3685), 9 states have internal predecessors, (3685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:41,050 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 430.0) internal successors, (4300), 10 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:41,052 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 430.0) internal successors, (4300), 10 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:41,052 INFO L175 Difference]: Start difference. First operand has 413 places, 405 transitions, 850 flow. Second operand 9 states and 3685 transitions. [2022-11-18 20:31:41,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 439 transitions, 1032 flow [2022-11-18 20:31:41,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 439 transitions, 1002 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:31:41,066 INFO L231 Difference]: Finished difference. Result has 419 places, 411 transitions, 870 flow [2022-11-18 20:31:41,067 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=870, PETRI_PLACES=419, PETRI_TRANSITIONS=411} [2022-11-18 20:31:41,067 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -9 predicate places. [2022-11-18 20:31:41,067 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 411 transitions, 870 flow [2022-11-18 20:31:41,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 408.6) internal successors, (4086), 10 states have internal predecessors, (4086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:41,070 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:41,070 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:41,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:31:41,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 20:31:41,277 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:41,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:41,278 INFO L85 PathProgramCache]: Analyzing trace with hash 482614580, now seen corresponding path program 2 times [2022-11-18 20:31:41,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:41,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513724061] [2022-11-18 20:31:41,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:41,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:42,130 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:42,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:42,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513724061] [2022-11-18 20:31:42,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513724061] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:31:42,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930359236] [2022-11-18 20:31:42,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:31:42,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:42,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:42,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:31:42,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:31:42,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:31:42,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:31:42,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:31:42,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:42,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-18 20:31:42,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 20:31:42,563 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:31:42,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-18 20:31:42,599 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:31:42,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-18 20:31:42,629 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2022-11-18 20:31:42,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:31:42,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930359236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:42,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:31:42,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-18 20:31:42,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934298919] [2022-11-18 20:31:42,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:42,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:31:42,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:42,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:31:42,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:31:42,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 430 [2022-11-18 20:31:42,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 411 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 243.33333333333334) internal successors, (1460), 6 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:42,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:42,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 430 [2022-11-18 20:31:42,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:44,619 INFO L130 PetriNetUnfolder]: 1388/4491 cut-off events. [2022-11-18 20:31:44,620 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 20:31:44,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7621 conditions, 4491 events. 1388/4491 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 28651 event pairs, 95 based on Foata normal form. 0/4042 useless extension candidates. Maximal degree in co-relation 7115. Up to 1989 conditions per place. [2022-11-18 20:31:44,651 INFO L137 encePairwiseOnDemand]: 402/430 looper letters, 265 selfloop transitions, 74 changer transitions 0/575 dead transitions. [2022-11-18 20:31:44,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 575 transitions, 1876 flow [2022-11-18 20:31:44,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:31:44,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:31:44,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1733 transitions. [2022-11-18 20:31:44,656 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6717054263565891 [2022-11-18 20:31:44,656 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1733 transitions. [2022-11-18 20:31:44,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1733 transitions. [2022-11-18 20:31:44,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:44,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1733 transitions. [2022-11-18 20:31:44,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 288.8333333333333) internal successors, (1733), 6 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:44,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:44,666 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:44,666 INFO L175 Difference]: Start difference. First operand has 419 places, 411 transitions, 870 flow. Second operand 6 states and 1733 transitions. [2022-11-18 20:31:44,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 575 transitions, 1876 flow [2022-11-18 20:31:44,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 575 transitions, 1870 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-18 20:31:44,679 INFO L231 Difference]: Finished difference. Result has 427 places, 478 transitions, 1336 flow [2022-11-18 20:31:44,680 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1336, PETRI_PLACES=427, PETRI_TRANSITIONS=478} [2022-11-18 20:31:44,682 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, -1 predicate places. [2022-11-18 20:31:44,682 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 478 transitions, 1336 flow [2022-11-18 20:31:44,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 243.33333333333334) internal successors, (1460), 6 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:44,683 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:44,683 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:44,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:44,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:44,889 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:44,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:44,889 INFO L85 PathProgramCache]: Analyzing trace with hash 771157745, now seen corresponding path program 1 times [2022-11-18 20:31:44,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:44,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680388959] [2022-11-18 20:31:44,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:44,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:45,716 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:45,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:45,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680388959] [2022-11-18 20:31:45,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680388959] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:31:45,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118123465] [2022-11-18 20:31:45,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:45,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:45,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:45,719 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:31:45,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:31:46,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:46,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 1759 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:31:46,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:46,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:31:47,366 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 321 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:47,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118123465] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:31:47,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:31:47,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 20:31:47,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113481897] [2022-11-18 20:31:47,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:31:47,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:31:47,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:47,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:31:47,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:31:47,385 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 430 [2022-11-18 20:31:47,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 478 transitions, 1336 flow. Second operand has 18 states, 18 states have (on average 409.8888888888889) internal successors, (7378), 18 states have internal predecessors, (7378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:47,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:47,398 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 430 [2022-11-18 20:31:47,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:48,652 INFO L130 PetriNetUnfolder]: 126/1996 cut-off events. [2022-11-18 20:31:48,653 INFO L131 PetriNetUnfolder]: For 108/114 co-relation queries the response was YES. [2022-11-18 20:31:48,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2675 conditions, 1996 events. 126/1996 cut-off events. For 108/114 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6296 event pairs, 0 based on Foata normal form. 4/1926 useless extension candidates. Maximal degree in co-relation 1741. Up to 173 conditions per place. [2022-11-18 20:31:48,660 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 103 selfloop transitions, 21 changer transitions 0/574 dead transitions. [2022-11-18 20:31:48,660 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 574 transitions, 1828 flow [2022-11-18 20:31:48,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 20:31:48,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 20:31:48,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8591 transitions. [2022-11-18 20:31:48,676 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9513842746400886 [2022-11-18 20:31:48,676 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8591 transitions. [2022-11-18 20:31:48,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8591 transitions. [2022-11-18 20:31:48,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:48,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8591 transitions. [2022-11-18 20:31:48,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 409.0952380952381) internal successors, (8591), 21 states have internal predecessors, (8591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:48,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 430.0) internal successors, (9460), 22 states have internal predecessors, (9460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:48,716 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 430.0) internal successors, (9460), 22 states have internal predecessors, (9460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:48,716 INFO L175 Difference]: Start difference. First operand has 427 places, 478 transitions, 1336 flow. Second operand 21 states and 8591 transitions. [2022-11-18 20:31:48,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 574 transitions, 1828 flow [2022-11-18 20:31:48,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 447 places, 574 transitions, 1828 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:31:48,730 INFO L231 Difference]: Finished difference. Result has 452 places, 491 transitions, 1466 flow [2022-11-18 20:31:48,731 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1466, PETRI_PLACES=452, PETRI_TRANSITIONS=491} [2022-11-18 20:31:48,731 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 24 predicate places. [2022-11-18 20:31:48,731 INFO L495 AbstractCegarLoop]: Abstraction has has 452 places, 491 transitions, 1466 flow [2022-11-18 20:31:48,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 409.8888888888889) internal successors, (7378), 18 states have internal predecessors, (7378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:48,734 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:48,735 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:48,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:48,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:48,943 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:48,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:48,944 INFO L85 PathProgramCache]: Analyzing trace with hash 399804673, now seen corresponding path program 2 times [2022-11-18 20:31:48,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:48,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431890945] [2022-11-18 20:31:48,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:48,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:51,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:51,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:51,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431890945] [2022-11-18 20:31:51,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431890945] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:31:51,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930238911] [2022-11-18 20:31:51,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:31:51,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:51,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:51,720 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:31:51,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:31:52,355 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:31:52,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:31:52,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:31:52,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:52,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-18 20:31:52,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2022-11-18 20:31:52,465 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:31:52,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2022-11-18 20:31:52,503 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:31:52,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2022-11-18 20:31:52,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2233 trivial. 0 not checked. [2022-11-18 20:31:52,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:31:52,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930238911] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:52,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:31:52,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 20:31:52,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482882619] [2022-11-18 20:31:52,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:52,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:31:52,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:52,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:31:52,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:31:52,545 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 430 [2022-11-18 20:31:52,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 491 transitions, 1466 flow. Second operand has 6 states, 6 states have (on average 250.5) internal successors, (1503), 6 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:52,546 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:52,546 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 430 [2022-11-18 20:31:52,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:55,090 INFO L130 PetriNetUnfolder]: 1278/4853 cut-off events. [2022-11-18 20:31:55,090 INFO L131 PetriNetUnfolder]: For 1260/1341 co-relation queries the response was YES. [2022-11-18 20:31:55,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9435 conditions, 4853 events. 1278/4853 cut-off events. For 1260/1341 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 27888 event pairs, 859 based on Foata normal form. 0/4442 useless extension candidates. Maximal degree in co-relation 8253. Up to 3052 conditions per place. [2022-11-18 20:31:55,108 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 234 selfloop transitions, 5 changer transitions 0/490 dead transitions. [2022-11-18 20:31:55,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 490 transitions, 1942 flow [2022-11-18 20:31:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:31:55,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:31:55,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1576 transitions. [2022-11-18 20:31:55,113 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6108527131782946 [2022-11-18 20:31:55,113 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1576 transitions. [2022-11-18 20:31:55,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1576 transitions. [2022-11-18 20:31:55,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:55,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1576 transitions. [2022-11-18 20:31:55,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 262.6666666666667) internal successors, (1576), 6 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:55,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:55,132 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:55,132 INFO L175 Difference]: Start difference. First operand has 452 places, 491 transitions, 1466 flow. Second operand 6 states and 1576 transitions. [2022-11-18 20:31:55,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 490 transitions, 1942 flow [2022-11-18 20:31:55,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 490 transitions, 1918 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-18 20:31:55,145 INFO L231 Difference]: Finished difference. Result has 450 places, 490 transitions, 1450 flow [2022-11-18 20:31:55,146 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1440, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1450, PETRI_PLACES=450, PETRI_TRANSITIONS=490} [2022-11-18 20:31:55,149 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 22 predicate places. [2022-11-18 20:31:55,150 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 490 transitions, 1450 flow [2022-11-18 20:31:55,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.5) internal successors, (1503), 6 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:55,151 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:55,151 INFO L209 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:55,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:55,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:31:55,358 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:31:55,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:55,359 INFO L85 PathProgramCache]: Analyzing trace with hash 747994625, now seen corresponding path program 1 times [2022-11-18 20:31:55,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:55,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633305973] [2022-11-18 20:31:55,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:55,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:57,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:57,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:57,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633305973] [2022-11-18 20:31:57,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633305973] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:31:57,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055198766] [2022-11-18 20:31:57,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:57,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:57,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:57,798 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:31:57,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:31:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:58,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 3679 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:31:58,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:32:00,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:00,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:32:01,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2233 backedges. 0 proven. 2233 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:01,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055198766] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:32:01,272 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:32:01,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 20:32:01,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173778089] [2022-11-18 20:32:01,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:32:01,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:32:01,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:01,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:32:01,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:32:01,285 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 430 [2022-11-18 20:32:01,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 490 transitions, 1450 flow. Second operand has 23 states, 23 states have (on average 410.6521739130435) internal successors, (9445), 23 states have internal predecessors, (9445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:01,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:01,295 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 430 [2022-11-18 20:32:01,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:02,646 INFO L130 PetriNetUnfolder]: 133/2320 cut-off events. [2022-11-18 20:32:02,646 INFO L131 PetriNetUnfolder]: For 225/231 co-relation queries the response was YES. [2022-11-18 20:32:02,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3126 conditions, 2320 events. 133/2320 cut-off events. For 225/231 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 6305 event pairs, 0 based on Foata normal form. 3/2250 useless extension candidates. Maximal degree in co-relation 1766. Up to 173 conditions per place. [2022-11-18 20:32:02,655 INFO L137 encePairwiseOnDemand]: 424/430 looper letters, 145 selfloop transitions, 30 changer transitions 0/624 dead transitions. [2022-11-18 20:32:02,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 624 transitions, 2156 flow [2022-11-18 20:32:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 20:32:02,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 20:32:02,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 12268 transitions. [2022-11-18 20:32:02,675 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9510077519379845 [2022-11-18 20:32:02,676 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 12268 transitions. [2022-11-18 20:32:02,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 12268 transitions. [2022-11-18 20:32:02,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:02,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 12268 transitions. [2022-11-18 20:32:02,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 408.93333333333334) internal successors, (12268), 30 states have internal predecessors, (12268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:02,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 430.0) internal successors, (13330), 31 states have internal predecessors, (13330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:02,732 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 430.0) internal successors, (13330), 31 states have internal predecessors, (13330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:02,732 INFO L175 Difference]: Start difference. First operand has 450 places, 490 transitions, 1450 flow. Second operand 30 states and 12268 transitions. [2022-11-18 20:32:02,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 624 transitions, 2156 flow [2022-11-18 20:32:02,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 624 transitions, 2146 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:32:02,745 INFO L231 Difference]: Finished difference. Result has 478 places, 500 transitions, 1592 flow [2022-11-18 20:32:02,746 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1440, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1592, PETRI_PLACES=478, PETRI_TRANSITIONS=500} [2022-11-18 20:32:02,746 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 50 predicate places. [2022-11-18 20:32:02,747 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 500 transitions, 1592 flow [2022-11-18 20:32:02,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 410.6521739130435) internal successors, (9445), 23 states have internal predecessors, (9445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:02,750 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:02,751 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:02,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-18 20:32:02,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_917b8f2b-2d83-469f-b122-8267f28805ba/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:32:02,963 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:32:02,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:02,963 INFO L85 PathProgramCache]: Analyzing trace with hash -711783563, now seen corresponding path program 2 times [2022-11-18 20:32:02,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:02,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562318298] [2022-11-18 20:32:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:02,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:03,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:07,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-18 20:32:07,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:07,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562318298] [2022-11-18 20:32:07,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562318298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:07,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:07,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:32:07,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191613918] [2022-11-18 20:32:07,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:07,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:32:07,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:07,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:32:07,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:32:07,636 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 430 [2022-11-18 20:32:07,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 500 transitions, 1592 flow. Second operand has 6 states, 6 states have (on average 260.8333333333333) internal successors, (1565), 6 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:07,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:07,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 430 [2022-11-18 20:32:07,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:11,565 INFO L130 PetriNetUnfolder]: 1524/5662 cut-off events. [2022-11-18 20:32:11,566 INFO L131 PetriNetUnfolder]: For 1461/1548 co-relation queries the response was YES. [2022-11-18 20:32:11,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11047 conditions, 5662 events. 1524/5662 cut-off events. For 1461/1548 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 31575 event pairs, 624 based on Foata normal form. 16/5257 useless extension candidates. Maximal degree in co-relation 9366. Up to 3074 conditions per place. [2022-11-18 20:32:11,587 INFO L137 encePairwiseOnDemand]: 407/430 looper letters, 311 selfloop transitions, 130 changer transitions 0/709 dead transitions. [2022-11-18 20:32:11,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 709 transitions, 3268 flow [2022-11-18 20:32:11,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:32:11,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:32:11,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1760 transitions. [2022-11-18 20:32:11,591 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6821705426356589 [2022-11-18 20:32:11,591 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1760 transitions. [2022-11-18 20:32:11,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1760 transitions. [2022-11-18 20:32:11,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:11,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1760 transitions. [2022-11-18 20:32:11,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 293.3333333333333) internal successors, (1760), 6 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:11,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:11,600 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:11,600 INFO L175 Difference]: Start difference. First operand has 478 places, 500 transitions, 1592 flow. Second operand 6 states and 1760 transitions. [2022-11-18 20:32:11,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 709 transitions, 3268 flow [2022-11-18 20:32:11,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 709 transitions, 3222 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 20:32:11,617 INFO L231 Difference]: Finished difference. Result has 470 places, 629 transitions, 2774 flow [2022-11-18 20:32:11,617 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=1546, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=500, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2774, PETRI_PLACES=470, PETRI_TRANSITIONS=629} [2022-11-18 20:32:11,618 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 42 predicate places. [2022-11-18 20:32:11,618 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 629 transitions, 2774 flow [2022-11-18 20:32:11,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 260.8333333333333) internal successors, (1565), 6 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:11,619 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:11,619 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:11,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:32:11,620 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:32:11,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:11,620 INFO L85 PathProgramCache]: Analyzing trace with hash 219422934, now seen corresponding path program 1 times [2022-11-18 20:32:11,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:11,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387128500] [2022-11-18 20:32:11,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:11,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:11,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-18 20:32:15,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:15,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387128500] [2022-11-18 20:32:15,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387128500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:15,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:15,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:32:15,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27547849] [2022-11-18 20:32:15,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:15,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:32:15,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:15,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:32:15,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:32:15,677 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 430 [2022-11-18 20:32:15,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 629 transitions, 2774 flow. Second operand has 6 states, 6 states have (on average 258.5) internal successors, (1551), 6 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:15,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:15,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 430 [2022-11-18 20:32:15,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:19,899 INFO L130 PetriNetUnfolder]: 1637/6463 cut-off events. [2022-11-18 20:32:19,899 INFO L131 PetriNetUnfolder]: For 3781/3980 co-relation queries the response was YES. [2022-11-18 20:32:19,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14059 conditions, 6463 events. 1637/6463 cut-off events. For 3781/3980 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 40624 event pairs, 508 based on Foata normal form. 8/6099 useless extension candidates. Maximal degree in co-relation 12395. Up to 3338 conditions per place. [2022-11-18 20:32:19,938 INFO L137 encePairwiseOnDemand]: 408/430 looper letters, 439 selfloop transitions, 129 changer transitions 5/837 dead transitions. [2022-11-18 20:32:19,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 837 transitions, 4958 flow [2022-11-18 20:32:19,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:32:19,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:32:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1739 transitions. [2022-11-18 20:32:19,944 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.674031007751938 [2022-11-18 20:32:19,944 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1739 transitions. [2022-11-18 20:32:19,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1739 transitions. [2022-11-18 20:32:19,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:19,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1739 transitions. [2022-11-18 20:32:19,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 289.8333333333333) internal successors, (1739), 6 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:19,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:19,959 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:19,959 INFO L175 Difference]: Start difference. First operand has 470 places, 629 transitions, 2774 flow. Second operand 6 states and 1739 transitions. [2022-11-18 20:32:19,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 837 transitions, 4958 flow [2022-11-18 20:32:19,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 837 transitions, 4958 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:32:19,992 INFO L231 Difference]: Finished difference. Result has 480 places, 756 transitions, 4240 flow [2022-11-18 20:32:19,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=2774, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=593, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4240, PETRI_PLACES=480, PETRI_TRANSITIONS=756} [2022-11-18 20:32:19,993 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 52 predicate places. [2022-11-18 20:32:19,993 INFO L495 AbstractCegarLoop]: Abstraction has has 480 places, 756 transitions, 4240 flow [2022-11-18 20:32:19,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 258.5) internal successors, (1551), 6 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:19,994 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:19,995 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:19,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:32:19,995 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:32:19,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1315103976, now seen corresponding path program 1 times [2022-11-18 20:32:19,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:19,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794978442] [2022-11-18 20:32:19,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:19,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:23,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4780 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4780 trivial. 0 not checked. [2022-11-18 20:32:23,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:23,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794978442] [2022-11-18 20:32:23,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794978442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:23,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:23,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:32:23,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977080346] [2022-11-18 20:32:23,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:23,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:32:23,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:23,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:32:23,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:32:23,807 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 430 [2022-11-18 20:32:23,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 756 transitions, 4240 flow. Second operand has 6 states, 6 states have (on average 257.1666666666667) internal successors, (1543), 6 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:23,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:23,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 430 [2022-11-18 20:32:23,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:28,001 INFO L130 PetriNetUnfolder]: 1747/6621 cut-off events. [2022-11-18 20:32:28,001 INFO L131 PetriNetUnfolder]: For 5716/5744 co-relation queries the response was YES. [2022-11-18 20:32:28,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16422 conditions, 6621 events. 1747/6621 cut-off events. For 5716/5744 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 40904 event pairs, 657 based on Foata normal form. 0/6316 useless extension candidates. Maximal degree in co-relation 14754. Up to 3984 conditions per place. [2022-11-18 20:32:28,035 INFO L137 encePairwiseOnDemand]: 411/430 looper letters, 505 selfloop transitions, 84 changer transitions 0/854 dead transitions. [2022-11-18 20:32:28,035 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 854 transitions, 5932 flow [2022-11-18 20:32:28,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:32:28,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:32:28,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1673 transitions. [2022-11-18 20:32:28,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6484496124031007 [2022-11-18 20:32:28,038 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1673 transitions. [2022-11-18 20:32:28,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1673 transitions. [2022-11-18 20:32:28,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:28,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1673 transitions. [2022-11-18 20:32:28,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 278.8333333333333) internal successors, (1673), 6 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:28,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:28,045 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 430.0) internal successors, (3010), 7 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:28,046 INFO L175 Difference]: Start difference. First operand has 480 places, 756 transitions, 4240 flow. Second operand 6 states and 1673 transitions. [2022-11-18 20:32:28,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 854 transitions, 5932 flow [2022-11-18 20:32:28,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 484 places, 854 transitions, 5678 flow, removed 127 selfloop flow, removed 0 redundant places. [2022-11-18 20:32:28,085 INFO L231 Difference]: Finished difference. Result has 489 places, 827 transitions, 4776 flow [2022-11-18 20:32:28,085 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=430, PETRI_DIFFERENCE_MINUEND_FLOW=3992, PETRI_DIFFERENCE_MINUEND_PLACES=479, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=708, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4776, PETRI_PLACES=489, PETRI_TRANSITIONS=827} [2022-11-18 20:32:28,086 INFO L288 CegarLoopForPetriNet]: 428 programPoint places, 61 predicate places. [2022-11-18 20:32:28,086 INFO L495 AbstractCegarLoop]: Abstraction has has 489 places, 827 transitions, 4776 flow [2022-11-18 20:32:28,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 257.1666666666667) internal successors, (1543), 6 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:28,087 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:28,088 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:28,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:32:28,088 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-18 20:32:28,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:28,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1176412471, now seen corresponding path program 1 times [2022-11-18 20:32:28,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:28,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25509754] [2022-11-18 20:32:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:28,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat