./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/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_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/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_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- 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 19:39:48,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:39:48,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:39:48,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:39:48,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:39:48,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:39:48,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:39:48,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:39:48,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:39:48,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:39:48,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:39:48,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:39:48,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:39:48,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:39:48,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:39:48,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:39:48,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:39:48,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:39:48,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:39:48,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:39:48,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:39:48,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:39:48,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:39:48,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:39:48,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:39:48,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:39:48,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:39:48,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:39:48,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:39:48,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:39:48,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:39:48,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:39:48,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:39:48,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:39:48,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:39:48,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:39:48,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:39:48,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:39:48,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:39:48,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:39:48,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:39:48,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:39:48,401 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:39:48,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:39:48,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:39:48,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:39:48,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:39:48,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:39:48,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:39:48,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:39:48,407 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:39:48,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:39:48,409 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:39:48,409 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:39:48,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:39:48,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:39:48,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:39:48,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:39:48,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:39:48,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:39:48,411 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:39:48,411 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:39:48,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:39:48,412 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:39:48,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:39:48,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:39:48,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:39:48,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:39:48,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:39:48,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:39:48,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:39:48,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:39:48,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:39:48,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:39:48,415 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:39:48,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:39:48,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:39:48,416 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_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2022-11-18 19:39:48,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:39:48,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:39:48,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:39:48,726 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:39:48,727 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:39:48,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-18 19:39:48,792 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/data/b02028c4b/53fd00d0214541e6bd7c454bf5f8f2d2/FLAGc91418fe2 [2022-11-18 19:39:49,346 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:39:49,347 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-11-18 19:39:49,380 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/data/b02028c4b/53fd00d0214541e6bd7c454bf5f8f2d2/FLAGc91418fe2 [2022-11-18 19:39:49,804 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/data/b02028c4b/53fd00d0214541e6bd7c454bf5f8f2d2 [2022-11-18 19:39:49,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:39:49,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:39:49,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:39:49,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:39:49,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:39:49,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:39:49" (1/1) ... [2022-11-18 19:39:49,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac2d91b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:49, skipping insertion in model container [2022-11-18 19:39:49,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:39:49" (1/1) ... [2022-11-18 19:39:49,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:39:49,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:39:50,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:39:50,406 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:39:50,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:39:50,506 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:39:50,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50 WrapperNode [2022-11-18 19:39:50,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:39:50,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:39:50,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:39:50,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:39:50,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (1/1) ... [2022-11-18 19:39:50,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (1/1) ... [2022-11-18 19:39:50,566 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-11-18 19:39:50,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:39:50,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:39:50,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:39:50,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:39:50,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (1/1) ... [2022-11-18 19:39:50,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (1/1) ... [2022-11-18 19:39:50,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (1/1) ... [2022-11-18 19:39:50,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (1/1) ... [2022-11-18 19:39:50,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (1/1) ... [2022-11-18 19:39:50,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (1/1) ... [2022-11-18 19:39:50,597 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (1/1) ... [2022-11-18 19:39:50,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (1/1) ... [2022-11-18 19:39:50,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:39:50,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:39:50,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:39:50,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:39:50,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (1/1) ... [2022-11-18 19:39:50,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:39:50,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:50,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:39:50,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:39:50,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:39:50,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:39:50,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:39:50,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:39:50,692 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 19:39:50,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:39:50,692 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 19:39:50,692 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 19:39:50,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:39:50,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:39:50,700 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 19:39:50,858 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:39:50,861 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:39:51,136 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:39:51,144 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:39:51,144 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:39:51,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:39:51 BoogieIcfgContainer [2022-11-18 19:39:51,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:39:51,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:39:51,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:39:51,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:39:51,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:39:49" (1/3) ... [2022-11-18 19:39:51,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1460ba55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:39:51, skipping insertion in model container [2022-11-18 19:39:51,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:50" (2/3) ... [2022-11-18 19:39:51,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1460ba55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:39:51, skipping insertion in model container [2022-11-18 19:39:51,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:39:51" (3/3) ... [2022-11-18 19:39:51,176 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2022-11-18 19:39:51,186 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:39:51,211 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:39:51,211 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 19:39:51,211 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:39:51,363 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:39:51,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 106 transitions, 217 flow [2022-11-18 19:39:51,480 INFO L130 PetriNetUnfolder]: 4/105 cut-off events. [2022-11-18 19:39:51,481 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:39:51,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 105 events. 4/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-11-18 19:39:51,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 106 transitions, 217 flow [2022-11-18 19:39:51,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 105 transitions, 213 flow [2022-11-18 19:39:51,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:39:51,509 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;@60371332, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:39:51,509 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-18 19:39:51,528 INFO L130 PetriNetUnfolder]: 4/55 cut-off events. [2022-11-18 19:39:51,528 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:39:51,528 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:51,529 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] [2022-11-18 19:39:51,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:39:51,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:51,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1316832337, now seen corresponding path program 1 times [2022-11-18 19:39:51,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:51,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366262011] [2022-11-18 19:39:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:51,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:51,770 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 19:39:51,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:51,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366262011] [2022-11-18 19:39:51,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366262011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:51,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:51,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:39:51,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923414984] [2022-11-18 19:39:51,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:51,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:39:51,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:51,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:39:51,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:39:51,820 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 106 [2022-11-18 19:39:51,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 105 transitions, 213 flow. Second operand has 2 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 19:39:51,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:51,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 106 [2022-11-18 19:39:51,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:51,869 INFO L130 PetriNetUnfolder]: 1/102 cut-off events. [2022-11-18 19:39:51,870 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:39:51,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 102 events. 1/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 3/98 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2022-11-18 19:39:51,871 INFO L137 encePairwiseOnDemand]: 103/106 looper letters, 1 selfloop transitions, 0 changer transitions 1/102 dead transitions. [2022-11-18 19:39:51,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 102 transitions, 209 flow [2022-11-18 19:39:51,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:39:51,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 19:39:51,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 208 transitions. [2022-11-18 19:39:51,886 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9811320754716981 [2022-11-18 19:39:51,887 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 208 transitions. [2022-11-18 19:39:51,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 208 transitions. [2022-11-18 19:39:51,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:51,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 208 transitions. [2022-11-18 19:39:51,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 104.0) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states 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 19:39:51,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states 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 19:39:51,900 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states 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 19:39:51,902 INFO L175 Difference]: Start difference. First operand has 105 places, 105 transitions, 213 flow. Second operand 2 states and 208 transitions. [2022-11-18 19:39:51,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 102 transitions, 209 flow [2022-11-18 19:39:51,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:39:51,910 INFO L231 Difference]: Finished difference. Result has 105 places, 101 transitions, 204 flow [2022-11-18 19:39:51,912 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=204, PETRI_PLACES=105, PETRI_TRANSITIONS=101} [2022-11-18 19:39:51,916 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 0 predicate places. [2022-11-18 19:39:51,916 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 101 transitions, 204 flow [2022-11-18 19:39:51,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states 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 19:39:51,917 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:51,917 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] [2022-11-18 19:39:51,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:39:51,918 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:39:51,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:51,919 INFO L85 PathProgramCache]: Analyzing trace with hash 900925616, now seen corresponding path program 1 times [2022-11-18 19:39:51,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:51,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529969764] [2022-11-18 19:39:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:51,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:52,090 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 19:39:52,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:52,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529969764] [2022-11-18 19:39:52,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529969764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:52,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:52,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:39:52,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548977069] [2022-11-18 19:39:52,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:52,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:39:52,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:52,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:39:52,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:39:52,096 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 106 [2022-11-18 19:39:52,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 101 transitions, 204 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states 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 19:39:52,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:52,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 106 [2022-11-18 19:39:52,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:52,216 INFO L130 PetriNetUnfolder]: 1/105 cut-off events. [2022-11-18 19:39:52,216 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:39:52,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 105 events. 1/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 76 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 119. Up to 9 conditions per place. [2022-11-18 19:39:52,217 INFO L137 encePairwiseOnDemand]: 103/106 looper letters, 10 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2022-11-18 19:39:52,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 105 transitions, 236 flow [2022-11-18 19:39:52,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:39:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:39:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2022-11-18 19:39:52,229 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9371069182389937 [2022-11-18 19:39:52,230 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2022-11-18 19:39:52,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2022-11-18 19:39:52,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:52,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2022-11-18 19:39:52,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states 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 19:39:52,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states 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 19:39:52,235 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states 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 19:39:52,235 INFO L175 Difference]: Start difference. First operand has 105 places, 101 transitions, 204 flow. Second operand 3 states and 298 transitions. [2022-11-18 19:39:52,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 105 transitions, 236 flow [2022-11-18 19:39:52,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 105 transitions, 236 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:39:52,238 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 216 flow [2022-11-18 19:39:52,246 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2022-11-18 19:39:52,247 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 2 predicate places. [2022-11-18 19:39:52,247 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 216 flow [2022-11-18 19:39:52,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states 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 19:39:52,248 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:52,248 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] [2022-11-18 19:39:52,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:39:52,249 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:39:52,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:52,251 INFO L85 PathProgramCache]: Analyzing trace with hash 438260885, now seen corresponding path program 1 times [2022-11-18 19:39:52,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:52,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058570428] [2022-11-18 19:39:52,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:52,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:52,513 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 19:39:52,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:52,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058570428] [2022-11-18 19:39:52,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058570428] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:52,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018001974] [2022-11-18 19:39:52,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:52,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:52,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:52,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:52,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:39:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:52,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:39:52,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:52,760 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 19:39:52,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:52,807 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 19:39:52,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018001974] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:52,807 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:39:52,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-18 19:39:52,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968451177] [2022-11-18 19:39:52,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:52,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:39:52,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:52,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:39:52,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:39:52,813 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-18 19:39:52,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 216 flow. Second operand has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states 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 19:39:52,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:52,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-18 19:39:52,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:52,932 INFO L130 PetriNetUnfolder]: 1/112 cut-off events. [2022-11-18 19:39:52,932 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 19:39:52,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 112 events. 1/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 2/109 useless extension candidates. Maximal degree in co-relation 140. Up to 6 conditions per place. [2022-11-18 19:39:52,934 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 11 selfloop transitions, 9 changer transitions 0/112 dead transitions. [2022-11-18 19:39:52,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 112 transitions, 278 flow [2022-11-18 19:39:52,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:39:52,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 19:39:52,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 868 transitions. [2022-11-18 19:39:52,938 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.909853249475891 [2022-11-18 19:39:52,938 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 868 transitions. [2022-11-18 19:39:52,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 868 transitions. [2022-11-18 19:39:52,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:52,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 868 transitions. [2022-11-18 19:39:52,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 96.44444444444444) internal successors, (868), 9 states have internal predecessors, (868), 0 states have call successors, (0), 0 states 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 19:39:52,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states 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 19:39:52,948 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states 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 19:39:52,948 INFO L175 Difference]: Start difference. First operand has 107 places, 102 transitions, 216 flow. Second operand 9 states and 868 transitions. [2022-11-18 19:39:52,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 112 transitions, 278 flow [2022-11-18 19:39:52,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 112 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:39:52,952 INFO L231 Difference]: Finished difference. Result has 117 places, 108 transitions, 264 flow [2022-11-18 19:39:52,952 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=264, PETRI_PLACES=117, PETRI_TRANSITIONS=108} [2022-11-18 19:39:52,953 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 12 predicate places. [2022-11-18 19:39:52,953 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 108 transitions, 264 flow [2022-11-18 19:39:52,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 96.1) internal successors, (961), 10 states have internal predecessors, (961), 0 states have call successors, (0), 0 states 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 19:39:52,954 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:52,955 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:39:52,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:53,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:53,162 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:39:53,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:53,162 INFO L85 PathProgramCache]: Analyzing trace with hash 432939381, now seen corresponding path program 2 times [2022-11-18 19:39:53,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:53,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500706309] [2022-11-18 19:39:53,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:53,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:53,381 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:53,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:53,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500706309] [2022-11-18 19:39:53,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500706309] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:53,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166012706] [2022-11-18 19:39:53,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:39:53,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:53,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:53,384 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:53,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:39:53,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:39:53,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:39:53,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 19:39:53,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:53,572 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 19:39:53,600 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 19:39:53,652 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:53,652 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 19:39:53,714 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:53,715 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 19:39:53,758 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 19:39:53,762 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:39:53,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166012706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:53,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:39:53,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2022-11-18 19:39:53,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098384719] [2022-11-18 19:39:53,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:53,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:53,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:53,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:53,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:39:53,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 106 [2022-11-18 19:39:53,774 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 108 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states 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 19:39:53,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:53,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 106 [2022-11-18 19:39:53,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:54,282 INFO L130 PetriNetUnfolder]: 231/750 cut-off events. [2022-11-18 19:39:54,282 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 19:39:54,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1288 conditions, 750 events. 231/750 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3985 event pairs, 103 based on Foata normal form. 0/681 useless extension candidates. Maximal degree in co-relation 1281. Up to 361 conditions per place. [2022-11-18 19:39:54,290 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 72 selfloop transitions, 22 changer transitions 0/166 dead transitions. [2022-11-18 19:39:54,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 166 transitions, 568 flow [2022-11-18 19:39:54,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:54,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:54,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 497 transitions. [2022-11-18 19:39:54,294 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7814465408805031 [2022-11-18 19:39:54,294 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 497 transitions. [2022-11-18 19:39:54,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 497 transitions. [2022-11-18 19:39:54,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:54,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 497 transitions. [2022-11-18 19:39:54,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states 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 19:39:54,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states 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 19:39:54,300 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states 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 19:39:54,300 INFO L175 Difference]: Start difference. First operand has 117 places, 108 transitions, 264 flow. Second operand 6 states and 497 transitions. [2022-11-18 19:39:54,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 166 transitions, 568 flow [2022-11-18 19:39:54,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 166 transitions, 562 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-18 19:39:54,308 INFO L231 Difference]: Finished difference. Result has 126 places, 129 transitions, 408 flow [2022-11-18 19:39:54,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=408, PETRI_PLACES=126, PETRI_TRANSITIONS=129} [2022-11-18 19:39:54,311 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 21 predicate places. [2022-11-18 19:39:54,311 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 129 transitions, 408 flow [2022-11-18 19:39:54,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 69.33333333333333) internal successors, (416), 6 states have internal predecessors, (416), 0 states have call successors, (0), 0 states 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 19:39:54,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:54,312 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:39:54,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 19:39:54,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-18 19:39:54,518 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:39:54,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:54,519 INFO L85 PathProgramCache]: Analyzing trace with hash 491733010, now seen corresponding path program 1 times [2022-11-18 19:39:54,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:54,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153710131] [2022-11-18 19:39:54,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:54,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:54,737 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:54,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:54,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153710131] [2022-11-18 19:39:54,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153710131] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:54,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068492992] [2022-11-18 19:39:54,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:54,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:54,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:54,740 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:54,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:39:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:54,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 19:39:54,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:54,917 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:54,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:55,050 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:55,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068492992] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:55,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:39:55,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-18 19:39:55,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757263694] [2022-11-18 19:39:55,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:55,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 19:39:55,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:55,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 19:39:55,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:39:55,056 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-18 19:39:55,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 129 transitions, 408 flow. Second operand has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 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 19:39:55,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:55,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-18 19:39:55,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:55,332 INFO L130 PetriNetUnfolder]: 34/284 cut-off events. [2022-11-18 19:39:55,332 INFO L131 PetriNetUnfolder]: For 46/51 co-relation queries the response was YES. [2022-11-18 19:39:55,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 284 events. 34/284 cut-off events. For 46/51 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 826 event pairs, 4 based on Foata normal form. 4/275 useless extension candidates. Maximal degree in co-relation 509. Up to 49 conditions per place. [2022-11-18 19:39:55,334 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 19 selfloop transitions, 21 changer transitions 0/153 dead transitions. [2022-11-18 19:39:55,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 153 transitions, 588 flow [2022-11-18 19:39:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:39:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-18 19:39:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2018 transitions. [2022-11-18 19:39:55,340 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065588499550764 [2022-11-18 19:39:55,340 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2018 transitions. [2022-11-18 19:39:55,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2018 transitions. [2022-11-18 19:39:55,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:55,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2018 transitions. [2022-11-18 19:39:55,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 96.0952380952381) internal successors, (2018), 21 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states 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 19:39:55,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states 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 19:39:55,352 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 106.0) internal successors, (2332), 22 states have internal predecessors, (2332), 0 states have call successors, (0), 0 states 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 19:39:55,352 INFO L175 Difference]: Start difference. First operand has 126 places, 129 transitions, 408 flow. Second operand 21 states and 2018 transitions. [2022-11-18 19:39:55,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 153 transitions, 588 flow [2022-11-18 19:39:55,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 153 transitions, 588 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:39:55,358 INFO L231 Difference]: Finished difference. Result has 151 places, 142 transitions, 538 flow [2022-11-18 19:39:55,359 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=538, PETRI_PLACES=151, PETRI_TRANSITIONS=142} [2022-11-18 19:39:55,359 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 46 predicate places. [2022-11-18 19:39:55,359 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 142 transitions, 538 flow [2022-11-18 19:39:55,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 96.27777777777777) internal successors, (1733), 18 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 19:39:55,361 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:55,361 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:39:55,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:55,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:55,567 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:39:55,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:55,567 INFO L85 PathProgramCache]: Analyzing trace with hash 656757202, now seen corresponding path program 2 times [2022-11-18 19:39:55,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:55,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958389944] [2022-11-18 19:39:55,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:55,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:56,039 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:56,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:56,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958389944] [2022-11-18 19:39:56,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958389944] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:56,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750372135] [2022-11-18 19:39:56,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:39:56,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:56,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:56,042 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:56,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:39:56,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:39:56,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:39:56,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 19:39:56,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:56,169 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 19:39:56,190 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 19:39:56,233 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:56,234 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 19:39:56,294 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 19:39:56,296 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 19:39:56,336 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-18 19:39:56,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:39:56,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750372135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:56,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:39:56,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2022-11-18 19:39:56,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393399707] [2022-11-18 19:39:56,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:56,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:56,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:56,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:56,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:39:56,344 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 106 [2022-11-18 19:39:56,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 142 transitions, 538 flow. Second operand has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 19:39:56,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:56,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 106 [2022-11-18 19:39:56,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:56,836 INFO L130 PetriNetUnfolder]: 315/1037 cut-off events. [2022-11-18 19:39:56,836 INFO L131 PetriNetUnfolder]: For 265/269 co-relation queries the response was YES. [2022-11-18 19:39:56,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2163 conditions, 1037 events. 315/1037 cut-off events. For 265/269 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6068 event pairs, 133 based on Foata normal form. 4/963 useless extension candidates. Maximal degree in co-relation 2146. Up to 572 conditions per place. [2022-11-18 19:39:56,844 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 73 selfloop transitions, 39 changer transitions 5/199 dead transitions. [2022-11-18 19:39:56,844 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 199 transitions, 916 flow [2022-11-18 19:39:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:56,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:56,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2022-11-18 19:39:56,846 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7641509433962265 [2022-11-18 19:39:56,846 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 486 transitions. [2022-11-18 19:39:56,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 486 transitions. [2022-11-18 19:39:56,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:56,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 486 transitions. [2022-11-18 19:39:56,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 0 states have call successors, (0), 0 states 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 19:39:56,850 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states 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 19:39:56,850 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states 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 19:39:56,850 INFO L175 Difference]: Start difference. First operand has 151 places, 142 transitions, 538 flow. Second operand 6 states and 486 transitions. [2022-11-18 19:39:56,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 199 transitions, 916 flow [2022-11-18 19:39:56,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 199 transitions, 892 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-18 19:39:56,858 INFO L231 Difference]: Finished difference. Result has 155 places, 178 transitions, 802 flow [2022-11-18 19:39:56,859 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=155, PETRI_TRANSITIONS=178} [2022-11-18 19:39:56,859 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 50 predicate places. [2022-11-18 19:39:56,860 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 178 transitions, 802 flow [2022-11-18 19:39:56,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 19:39:56,860 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:56,860 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:39:56,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:57,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:57,066 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:39:57,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:57,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1425828848, now seen corresponding path program 1 times [2022-11-18 19:39:57,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:57,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354387012] [2022-11-18 19:39:57,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:57,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:57,488 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:57,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:57,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354387012] [2022-11-18 19:39:57,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354387012] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:39:57,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247875140] [2022-11-18 19:39:57,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:57,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:39:57,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:57,492 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:39:57,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:39:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:57,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 19:39:57,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:57,722 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:57,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:39:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:39:57,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247875140] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:39:57,975 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:39:57,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-11-18 19:39:57,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393297064] [2022-11-18 19:39:57,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:39:57,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 19:39:57,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:57,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 19:39:57,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-11-18 19:39:57,982 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 106 [2022-11-18 19:39:57,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 178 transitions, 802 flow. Second operand has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states 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 19:39:57,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:57,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 106 [2022-11-18 19:39:57,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:58,477 INFO L130 PetriNetUnfolder]: 119/559 cut-off events. [2022-11-18 19:39:58,477 INFO L131 PetriNetUnfolder]: For 316/329 co-relation queries the response was YES. [2022-11-18 19:39:58,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 559 events. 119/559 cut-off events. For 316/329 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2649 event pairs, 8 based on Foata normal form. 7/546 useless extension candidates. Maximal degree in co-relation 1220. Up to 116 conditions per place. [2022-11-18 19:39:58,482 INFO L137 encePairwiseOnDemand]: 100/106 looper letters, 25 selfloop transitions, 30 changer transitions 0/204 dead transitions. [2022-11-18 19:39:58,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 204 transitions, 1052 flow [2022-11-18 19:39:58,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-18 19:39:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-18 19:39:58,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2878 transitions. [2022-11-18 19:39:58,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9050314465408805 [2022-11-18 19:39:58,491 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2878 transitions. [2022-11-18 19:39:58,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2878 transitions. [2022-11-18 19:39:58,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:58,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2878 transitions. [2022-11-18 19:39:58,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 95.93333333333334) internal successors, (2878), 30 states have internal predecessors, (2878), 0 states have call successors, (0), 0 states 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 19:39:58,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states 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 19:39:58,509 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 106.0) internal successors, (3286), 31 states have internal predecessors, (3286), 0 states have call successors, (0), 0 states 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 19:39:58,510 INFO L175 Difference]: Start difference. First operand has 155 places, 178 transitions, 802 flow. Second operand 30 states and 2878 transitions. [2022-11-18 19:39:58,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 204 transitions, 1052 flow [2022-11-18 19:39:58,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 204 transitions, 1020 flow, removed 16 selfloop flow, removed 0 redundant places. [2022-11-18 19:39:58,520 INFO L231 Difference]: Finished difference. Result has 187 places, 188 transitions, 922 flow [2022-11-18 19:39:58,520 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=770, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=922, PETRI_PLACES=187, PETRI_TRANSITIONS=188} [2022-11-18 19:39:58,521 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 82 predicate places. [2022-11-18 19:39:58,521 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 188 transitions, 922 flow [2022-11-18 19:39:58,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 96.43478260869566) internal successors, (2218), 23 states have internal predecessors, (2218), 0 states have call successors, (0), 0 states 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 19:39:58,522 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:58,522 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:39:58,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:39:58,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0220c0-0ae7-4ac7-858d-9b2142916c5f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 19:39:58,728 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:39:58,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:58,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2073879691, now seen corresponding path program 2 times [2022-11-18 19:39:58,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:58,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808723949] [2022-11-18 19:39:58,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:58,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:59,292 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:39:59,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:59,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808723949] [2022-11-18 19:39:59,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808723949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:59,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:59,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:39:59,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914642632] [2022-11-18 19:39:59,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:59,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:39:59,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:59,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:39:59,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:39:59,295 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 106 [2022-11-18 19:39:59,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 188 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states 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 19:39:59,295 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:39:59,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 106 [2022-11-18 19:39:59,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:39:59,726 INFO L130 PetriNetUnfolder]: 321/1097 cut-off events. [2022-11-18 19:39:59,727 INFO L131 PetriNetUnfolder]: For 786/794 co-relation queries the response was YES. [2022-11-18 19:39:59,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2849 conditions, 1097 events. 321/1097 cut-off events. For 786/794 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6381 event pairs, 77 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 2823. Up to 538 conditions per place. [2022-11-18 19:39:59,736 INFO L137 encePairwiseOnDemand]: 95/106 looper letters, 108 selfloop transitions, 40 changer transitions 0/249 dead transitions. [2022-11-18 19:39:59,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 249 transitions, 1544 flow [2022-11-18 19:39:59,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:39:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:39:59,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 519 transitions. [2022-11-18 19:39:59,739 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8160377358490566 [2022-11-18 19:39:59,739 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 519 transitions. [2022-11-18 19:39:59,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 519 transitions. [2022-11-18 19:39:59,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:39:59,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 519 transitions. [2022-11-18 19:39:59,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 0 states 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 19:39:59,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states 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 19:39:59,743 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states 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 19:39:59,743 INFO L175 Difference]: Start difference. First operand has 187 places, 188 transitions, 922 flow. Second operand 6 states and 519 transitions. [2022-11-18 19:39:59,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 249 transitions, 1544 flow [2022-11-18 19:39:59,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 249 transitions, 1498 flow, removed 5 selfloop flow, removed 18 redundant places. [2022-11-18 19:39:59,756 INFO L231 Difference]: Finished difference. Result has 179 places, 219 transitions, 1244 flow [2022-11-18 19:39:59,756 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=876, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1244, PETRI_PLACES=179, PETRI_TRANSITIONS=219} [2022-11-18 19:39:59,759 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 74 predicate places. [2022-11-18 19:39:59,760 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 219 transitions, 1244 flow [2022-11-18 19:39:59,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states 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 19:39:59,760 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:39:59,760 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:39:59,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:39:59,761 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:39:59,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:59,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1373859952, now seen corresponding path program 1 times [2022-11-18 19:39:59,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:59,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250000494] [2022-11-18 19:39:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:59,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:00,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:00,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250000494] [2022-11-18 19:40:00,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250000494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:00,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:00,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:00,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076259871] [2022-11-18 19:40:00,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:00,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:00,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:00,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:00,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:00,351 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 106 [2022-11-18 19:40:00,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 219 transitions, 1244 flow. Second operand has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states 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 19:40:00,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:00,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 106 [2022-11-18 19:40:00,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:00,886 INFO L130 PetriNetUnfolder]: 432/1376 cut-off events. [2022-11-18 19:40:00,887 INFO L131 PetriNetUnfolder]: For 1529/1536 co-relation queries the response was YES. [2022-11-18 19:40:00,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4044 conditions, 1376 events. 432/1376 cut-off events. For 1529/1536 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 8476 event pairs, 122 based on Foata normal form. 0/1341 useless extension candidates. Maximal degree in co-relation 4013. Up to 770 conditions per place. [2022-11-18 19:40:00,900 INFO L137 encePairwiseOnDemand]: 91/106 looper letters, 115 selfloop transitions, 58 changer transitions 18/290 dead transitions. [2022-11-18 19:40:00,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 290 transitions, 2038 flow [2022-11-18 19:40:00,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:00,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:40:00,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 512 transitions. [2022-11-18 19:40:00,903 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8050314465408805 [2022-11-18 19:40:00,903 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 512 transitions. [2022-11-18 19:40:00,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 512 transitions. [2022-11-18 19:40:00,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:00,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 512 transitions. [2022-11-18 19:40:00,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.33333333333333) internal successors, (512), 6 states have internal predecessors, (512), 0 states have call successors, (0), 0 states 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 19:40:00,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states 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 19:40:00,907 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 106.0) internal successors, (742), 7 states have internal predecessors, (742), 0 states have call successors, (0), 0 states 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 19:40:00,907 INFO L175 Difference]: Start difference. First operand has 179 places, 219 transitions, 1244 flow. Second operand 6 states and 512 transitions. [2022-11-18 19:40:00,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 290 transitions, 2038 flow [2022-11-18 19:40:00,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 290 transitions, 2020 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-18 19:40:00,928 INFO L231 Difference]: Finished difference. Result has 189 places, 260 transitions, 1746 flow [2022-11-18 19:40:00,928 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1746, PETRI_PLACES=189, PETRI_TRANSITIONS=260} [2022-11-18 19:40:00,929 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 84 predicate places. [2022-11-18 19:40:00,929 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 260 transitions, 1746 flow [2022-11-18 19:40:00,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.66666666666667) internal successors, (442), 6 states have internal predecessors, (442), 0 states have call successors, (0), 0 states 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 19:40:00,930 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:00,930 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:00,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:40:00,931 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:00,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:00,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1228962851, now seen corresponding path program 1 times [2022-11-18 19:40:00,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:00,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811813627] [2022-11-18 19:40:00,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:00,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:02,531 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:02,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:02,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811813627] [2022-11-18 19:40:02,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811813627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:02,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:02,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:02,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237332764] [2022-11-18 19:40:02,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:02,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:02,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:02,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:02,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:02,535 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:02,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 260 transitions, 1746 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:02,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:02,537 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:02,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:03,753 INFO L130 PetriNetUnfolder]: 602/1868 cut-off events. [2022-11-18 19:40:03,753 INFO L131 PetriNetUnfolder]: For 3034/3048 co-relation queries the response was YES. [2022-11-18 19:40:03,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6138 conditions, 1868 events. 602/1868 cut-off events. For 3034/3048 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 12296 event pairs, 47 based on Foata normal form. 16/1870 useless extension candidates. Maximal degree in co-relation 6102. Up to 853 conditions per place. [2022-11-18 19:40:03,771 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 210 selfloop transitions, 77 changer transitions 45/421 dead transitions. [2022-11-18 19:40:03,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 421 transitions, 3468 flow [2022-11-18 19:40:03,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:40:03,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 19:40:03,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 888 transitions. [2022-11-18 19:40:03,775 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6981132075471698 [2022-11-18 19:40:03,775 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 888 transitions. [2022-11-18 19:40:03,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 888 transitions. [2022-11-18 19:40:03,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:03,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 888 transitions. [2022-11-18 19:40:03,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states 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 19:40:03,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:40:03,783 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:40:03,783 INFO L175 Difference]: Start difference. First operand has 189 places, 260 transitions, 1746 flow. Second operand 12 states and 888 transitions. [2022-11-18 19:40:03,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 421 transitions, 3468 flow [2022-11-18 19:40:03,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 421 transitions, 3388 flow, removed 40 selfloop flow, removed 0 redundant places. [2022-11-18 19:40:03,823 INFO L231 Difference]: Finished difference. Result has 208 places, 296 transitions, 2289 flow [2022-11-18 19:40:03,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=1678, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2289, PETRI_PLACES=208, PETRI_TRANSITIONS=296} [2022-11-18 19:40:03,825 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 103 predicate places. [2022-11-18 19:40:03,825 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 296 transitions, 2289 flow [2022-11-18 19:40:03,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:03,826 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:03,826 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:03,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:40:03,827 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:03,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:03,827 INFO L85 PathProgramCache]: Analyzing trace with hash 723428963, now seen corresponding path program 2 times [2022-11-18 19:40:03,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:03,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808273311] [2022-11-18 19:40:03,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:03,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:05,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:05,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808273311] [2022-11-18 19:40:05,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808273311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:05,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:05,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:05,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322797469] [2022-11-18 19:40:05,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:05,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:05,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:05,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:05,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:05,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:05,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 296 transitions, 2289 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:05,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:05,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:05,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:06,279 INFO L130 PetriNetUnfolder]: 568/1752 cut-off events. [2022-11-18 19:40:06,279 INFO L131 PetriNetUnfolder]: For 4572/4592 co-relation queries the response was YES. [2022-11-18 19:40:06,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6713 conditions, 1752 events. 568/1752 cut-off events. For 4572/4592 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 11352 event pairs, 140 based on Foata normal form. 14/1755 useless extension candidates. Maximal degree in co-relation 6668. Up to 869 conditions per place. [2022-11-18 19:40:06,296 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 192 selfloop transitions, 80 changer transitions 25/386 dead transitions. [2022-11-18 19:40:06,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 386 transitions, 3442 flow [2022-11-18 19:40:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:40:06,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 19:40:06,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 699 transitions. [2022-11-18 19:40:06,301 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7327044025157232 [2022-11-18 19:40:06,301 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 699 transitions. [2022-11-18 19:40:06,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 699 transitions. [2022-11-18 19:40:06,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:06,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 699 transitions. [2022-11-18 19:40:06,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.66666666666667) internal successors, (699), 9 states have internal predecessors, (699), 0 states have call successors, (0), 0 states 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 19:40:06,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states 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 19:40:06,308 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 106.0) internal successors, (1060), 10 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states 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 19:40:06,308 INFO L175 Difference]: Start difference. First operand has 208 places, 296 transitions, 2289 flow. Second operand 9 states and 699 transitions. [2022-11-18 19:40:06,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 386 transitions, 3442 flow [2022-11-18 19:40:06,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 386 transitions, 3412 flow, removed 12 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:06,356 INFO L231 Difference]: Finished difference. Result has 216 places, 300 transitions, 2496 flow [2022-11-18 19:40:06,357 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2264, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2496, PETRI_PLACES=216, PETRI_TRANSITIONS=300} [2022-11-18 19:40:06,358 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 111 predicate places. [2022-11-18 19:40:06,358 INFO L495 AbstractCegarLoop]: Abstraction has has 216 places, 300 transitions, 2496 flow [2022-11-18 19:40:06,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:06,358 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:06,359 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:06,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:40:06,359 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:06,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:06,360 INFO L85 PathProgramCache]: Analyzing trace with hash -985176137, now seen corresponding path program 3 times [2022-11-18 19:40:06,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:06,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946232699] [2022-11-18 19:40:06,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:06,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:07,726 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:07,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:07,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946232699] [2022-11-18 19:40:07,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946232699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:07,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:07,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:07,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084251526] [2022-11-18 19:40:07,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:07,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:07,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:07,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:07,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:07,728 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:07,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 300 transitions, 2496 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:07,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:07,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:07,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:09,453 INFO L130 PetriNetUnfolder]: 1074/2977 cut-off events. [2022-11-18 19:40:09,453 INFO L131 PetriNetUnfolder]: For 10658/10693 co-relation queries the response was YES. [2022-11-18 19:40:09,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12581 conditions, 2977 events. 1074/2977 cut-off events. For 10658/10693 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 22078 event pairs, 127 based on Foata normal form. 28/2984 useless extension candidates. Maximal degree in co-relation 12533. Up to 953 conditions per place. [2022-11-18 19:40:09,496 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 382 selfloop transitions, 95 changer transitions 25/591 dead transitions. [2022-11-18 19:40:09,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 591 transitions, 6202 flow [2022-11-18 19:40:09,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:40:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 19:40:09,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 844 transitions. [2022-11-18 19:40:09,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7238421955403087 [2022-11-18 19:40:09,499 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 844 transitions. [2022-11-18 19:40:09,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 844 transitions. [2022-11-18 19:40:09,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:09,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 844 transitions. [2022-11-18 19:40:09,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 76.72727272727273) internal successors, (844), 11 states have internal predecessors, (844), 0 states have call successors, (0), 0 states 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 19:40:09,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:09,506 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:09,506 INFO L175 Difference]: Start difference. First operand has 216 places, 300 transitions, 2496 flow. Second operand 11 states and 844 transitions. [2022-11-18 19:40:09,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 591 transitions, 6202 flow [2022-11-18 19:40:09,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 591 transitions, 6062 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-18 19:40:09,604 INFO L231 Difference]: Finished difference. Result has 229 places, 380 transitions, 3909 flow [2022-11-18 19:40:09,605 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=2431, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3909, PETRI_PLACES=229, PETRI_TRANSITIONS=380} [2022-11-18 19:40:09,606 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 124 predicate places. [2022-11-18 19:40:09,606 INFO L495 AbstractCegarLoop]: Abstraction has has 229 places, 380 transitions, 3909 flow [2022-11-18 19:40:09,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:09,607 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:09,608 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:09,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:40:09,608 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:09,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:09,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1519693021, now seen corresponding path program 4 times [2022-11-18 19:40:09,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:09,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511426803] [2022-11-18 19:40:09,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:09,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:10,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:10,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511426803] [2022-11-18 19:40:10,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511426803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:10,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:10,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:10,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102473748] [2022-11-18 19:40:10,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:10,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:10,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:10,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:10,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:10,825 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:10,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 380 transitions, 3909 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:10,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:10,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:10,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:12,489 INFO L130 PetriNetUnfolder]: 1062/3247 cut-off events. [2022-11-18 19:40:12,489 INFO L131 PetriNetUnfolder]: For 14462/14502 co-relation queries the response was YES. [2022-11-18 19:40:12,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13808 conditions, 3247 events. 1062/3247 cut-off events. For 14462/14502 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 25646 event pairs, 210 based on Foata normal form. 29/3249 useless extension candidates. Maximal degree in co-relation 13753. Up to 990 conditions per place. [2022-11-18 19:40:12,551 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 388 selfloop transitions, 104 changer transitions 31/612 dead transitions. [2022-11-18 19:40:12,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 612 transitions, 6805 flow [2022-11-18 19:40:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:40:12,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 19:40:12,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 803 transitions. [2022-11-18 19:40:12,554 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7575471698113208 [2022-11-18 19:40:12,554 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 803 transitions. [2022-11-18 19:40:12,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 803 transitions. [2022-11-18 19:40:12,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:12,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 803 transitions. [2022-11-18 19:40:12,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 80.3) internal successors, (803), 10 states have internal predecessors, (803), 0 states have call successors, (0), 0 states 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 19:40:12,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states 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 19:40:12,563 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states 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 19:40:12,563 INFO L175 Difference]: Start difference. First operand has 229 places, 380 transitions, 3909 flow. Second operand 10 states and 803 transitions. [2022-11-18 19:40:12,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 612 transitions, 6805 flow [2022-11-18 19:40:12,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 612 transitions, 6757 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-18 19:40:12,752 INFO L231 Difference]: Finished difference. Result has 244 places, 406 transitions, 4598 flow [2022-11-18 19:40:12,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=3861, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=380, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4598, PETRI_PLACES=244, PETRI_TRANSITIONS=406} [2022-11-18 19:40:12,754 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 139 predicate places. [2022-11-18 19:40:12,755 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 406 transitions, 4598 flow [2022-11-18 19:40:12,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:12,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:12,755 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:12,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:40:12,756 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:12,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:12,757 INFO L85 PathProgramCache]: Analyzing trace with hash 221665039, now seen corresponding path program 5 times [2022-11-18 19:40:12,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:12,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429056212] [2022-11-18 19:40:12,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:12,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:13,979 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:13,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:13,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429056212] [2022-11-18 19:40:13,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429056212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:13,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:13,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:13,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890566644] [2022-11-18 19:40:13,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:13,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:13,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:13,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:13,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:13,983 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:13,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 406 transitions, 4598 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:13,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:13,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:13,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:15,912 INFO L130 PetriNetUnfolder]: 1072/3150 cut-off events. [2022-11-18 19:40:15,912 INFO L131 PetriNetUnfolder]: For 18627/18665 co-relation queries the response was YES. [2022-11-18 19:40:15,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14775 conditions, 3150 events. 1072/3150 cut-off events. For 18627/18665 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 24234 event pairs, 252 based on Foata normal form. 27/3158 useless extension candidates. Maximal degree in co-relation 14713. Up to 1627 conditions per place. [2022-11-18 19:40:15,945 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 237 selfloop transitions, 158 changer transitions 21/505 dead transitions. [2022-11-18 19:40:15,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 505 transitions, 6246 flow [2022-11-18 19:40:15,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:40:15,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 19:40:15,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 893 transitions. [2022-11-18 19:40:15,969 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7020440251572327 [2022-11-18 19:40:15,969 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 893 transitions. [2022-11-18 19:40:15,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 893 transitions. [2022-11-18 19:40:15,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:15,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 893 transitions. [2022-11-18 19:40:15,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 74.41666666666667) internal successors, (893), 12 states have internal predecessors, (893), 0 states have call successors, (0), 0 states 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 19:40:15,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:40:15,974 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:40:15,974 INFO L175 Difference]: Start difference. First operand has 244 places, 406 transitions, 4598 flow. Second operand 12 states and 893 transitions. [2022-11-18 19:40:15,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 505 transitions, 6246 flow [2022-11-18 19:40:16,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 505 transitions, 6102 flow, removed 69 selfloop flow, removed 1 redundant places. [2022-11-18 19:40:16,138 INFO L231 Difference]: Finished difference. Result has 259 places, 420 transitions, 5041 flow [2022-11-18 19:40:16,139 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4457, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5041, PETRI_PLACES=259, PETRI_TRANSITIONS=420} [2022-11-18 19:40:16,139 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 154 predicate places. [2022-11-18 19:40:16,139 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 420 transitions, 5041 flow [2022-11-18 19:40:16,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:16,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:16,140 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:16,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:40:16,140 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:16,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:16,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1385481261, now seen corresponding path program 6 times [2022-11-18 19:40:16,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:16,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99265938] [2022-11-18 19:40:16,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:16,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:16,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:17,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:17,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99265938] [2022-11-18 19:40:17,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99265938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:17,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:17,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:17,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279401358] [2022-11-18 19:40:17,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:17,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:17,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:17,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:17,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:17,212 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:17,213 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 420 transitions, 5041 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:17,213 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:17,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:17,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:18,933 INFO L130 PetriNetUnfolder]: 1065/3193 cut-off events. [2022-11-18 19:40:18,933 INFO L131 PetriNetUnfolder]: For 20958/20997 co-relation queries the response was YES. [2022-11-18 19:40:18,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15337 conditions, 3193 events. 1065/3193 cut-off events. For 20958/20997 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24921 event pairs, 198 based on Foata normal form. 31/3201 useless extension candidates. Maximal degree in co-relation 15270. Up to 943 conditions per place. [2022-11-18 19:40:18,973 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 430 selfloop transitions, 108 changer transitions 38/665 dead transitions. [2022-11-18 19:40:18,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 665 transitions, 8247 flow [2022-11-18 19:40:18,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:40:18,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 19:40:18,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 877 transitions. [2022-11-18 19:40:18,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7521440823327615 [2022-11-18 19:40:18,979 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 877 transitions. [2022-11-18 19:40:18,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 877 transitions. [2022-11-18 19:40:18,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:18,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 877 transitions. [2022-11-18 19:40:18,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.72727272727273) internal successors, (877), 11 states have internal predecessors, (877), 0 states have call successors, (0), 0 states 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 19:40:18,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:18,985 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:18,985 INFO L175 Difference]: Start difference. First operand has 259 places, 420 transitions, 5041 flow. Second operand 11 states and 877 transitions. [2022-11-18 19:40:18,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 665 transitions, 8247 flow [2022-11-18 19:40:19,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 665 transitions, 7897 flow, removed 30 selfloop flow, removed 5 redundant places. [2022-11-18 19:40:19,118 INFO L231 Difference]: Finished difference. Result has 269 places, 442 transitions, 5399 flow [2022-11-18 19:40:19,119 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=4747, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=5399, PETRI_PLACES=269, PETRI_TRANSITIONS=442} [2022-11-18 19:40:19,119 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 164 predicate places. [2022-11-18 19:40:19,119 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 442 transitions, 5399 flow [2022-11-18 19:40:19,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:19,120 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:19,121 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:19,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:40:19,121 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:19,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:19,121 INFO L85 PathProgramCache]: Analyzing trace with hash -501421375, now seen corresponding path program 7 times [2022-11-18 19:40:19,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:19,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301555235] [2022-11-18 19:40:19,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:19,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:20,420 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:20,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:20,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301555235] [2022-11-18 19:40:20,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301555235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:20,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:20,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:20,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371416456] [2022-11-18 19:40:20,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:20,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:20,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:20,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:20,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:20,424 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:20,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 442 transitions, 5399 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:20,425 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:20,425 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:20,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:22,281 INFO L130 PetriNetUnfolder]: 1080/3203 cut-off events. [2022-11-18 19:40:22,282 INFO L131 PetriNetUnfolder]: For 23378/23416 co-relation queries the response was YES. [2022-11-18 19:40:22,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15864 conditions, 3203 events. 1080/3203 cut-off events. For 23378/23416 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 24855 event pairs, 253 based on Foata normal form. 27/3206 useless extension candidates. Maximal degree in co-relation 15792. Up to 1630 conditions per place. [2022-11-18 19:40:22,327 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 258 selfloop transitions, 166 changer transitions 23/536 dead transitions. [2022-11-18 19:40:22,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 536 transitions, 7184 flow [2022-11-18 19:40:22,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:40:22,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 19:40:22,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 944 transitions. [2022-11-18 19:40:22,332 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6850507982583455 [2022-11-18 19:40:22,332 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 944 transitions. [2022-11-18 19:40:22,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 944 transitions. [2022-11-18 19:40:22,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:22,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 944 transitions. [2022-11-18 19:40:22,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.61538461538461) internal successors, (944), 13 states have internal predecessors, (944), 0 states have call successors, (0), 0 states 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 19:40:22,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:40:22,338 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:40:22,339 INFO L175 Difference]: Start difference. First operand has 269 places, 442 transitions, 5399 flow. Second operand 13 states and 944 transitions. [2022-11-18 19:40:22,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 536 transitions, 7184 flow [2022-11-18 19:40:22,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 536 transitions, 7079 flow, removed 31 selfloop flow, removed 3 redundant places. [2022-11-18 19:40:22,528 INFO L231 Difference]: Finished difference. Result has 285 places, 462 transitions, 6081 flow [2022-11-18 19:40:22,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=5296, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=149, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6081, PETRI_PLACES=285, PETRI_TRANSITIONS=462} [2022-11-18 19:40:22,529 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 180 predicate places. [2022-11-18 19:40:22,530 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 462 transitions, 6081 flow [2022-11-18 19:40:22,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:22,530 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:22,531 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:22,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:40:22,531 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:22,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:22,532 INFO L85 PathProgramCache]: Analyzing trace with hash -673886140, now seen corresponding path program 1 times [2022-11-18 19:40:22,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:22,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814807218] [2022-11-18 19:40:22,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:22,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:23,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:23,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814807218] [2022-11-18 19:40:23,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814807218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:23,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:23,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:40:23,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529790567] [2022-11-18 19:40:23,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:23,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:40:23,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:23,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:40:23,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:40:23,772 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 106 [2022-11-18 19:40:23,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 462 transitions, 6081 flow. Second operand has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states 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 19:40:23,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:23,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 106 [2022-11-18 19:40:23,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:25,768 INFO L130 PetriNetUnfolder]: 1101/3338 cut-off events. [2022-11-18 19:40:25,768 INFO L131 PetriNetUnfolder]: For 27776/27783 co-relation queries the response was YES. [2022-11-18 19:40:25,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16876 conditions, 3338 events. 1101/3338 cut-off events. For 27776/27783 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 26116 event pairs, 124 based on Foata normal form. 6/3331 useless extension candidates. Maximal degree in co-relation 16797. Up to 951 conditions per place. [2022-11-18 19:40:25,799 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 474 selfloop transitions, 115 changer transitions 46/728 dead transitions. [2022-11-18 19:40:25,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 728 transitions, 9825 flow [2022-11-18 19:40:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 19:40:25,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-18 19:40:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1167 transitions. [2022-11-18 19:40:25,802 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6880896226415094 [2022-11-18 19:40:25,802 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1167 transitions. [2022-11-18 19:40:25,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1167 transitions. [2022-11-18 19:40:25,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:25,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1167 transitions. [2022-11-18 19:40:25,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 72.9375) internal successors, (1167), 16 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states 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 19:40:25,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states 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 19:40:25,808 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 106.0) internal successors, (1802), 17 states have internal predecessors, (1802), 0 states have call successors, (0), 0 states 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 19:40:25,809 INFO L175 Difference]: Start difference. First operand has 285 places, 462 transitions, 6081 flow. Second operand 16 states and 1167 transitions. [2022-11-18 19:40:25,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 728 transitions, 9825 flow [2022-11-18 19:40:26,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 728 transitions, 9577 flow, removed 83 selfloop flow, removed 3 redundant places. [2022-11-18 19:40:26,042 INFO L231 Difference]: Finished difference. Result has 306 places, 509 transitions, 6889 flow [2022-11-18 19:40:26,043 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=5884, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6889, PETRI_PLACES=306, PETRI_TRANSITIONS=509} [2022-11-18 19:40:26,043 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 201 predicate places. [2022-11-18 19:40:26,044 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 509 transitions, 6889 flow [2022-11-18 19:40:26,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 61.54545454545455) internal successors, (677), 11 states have internal predecessors, (677), 0 states have call successors, (0), 0 states 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 19:40:26,044 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:26,044 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:26,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:40:26,045 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:26,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:26,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1045153177, now seen corresponding path program 8 times [2022-11-18 19:40:26,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:26,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910821245] [2022-11-18 19:40:26,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:26,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:27,293 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:27,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:27,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910821245] [2022-11-18 19:40:27,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910821245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:27,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:27,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:27,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118536197] [2022-11-18 19:40:27,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:27,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:27,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:27,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:27,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:27,295 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:27,296 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 509 transitions, 6889 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:27,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:27,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:27,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:29,374 INFO L130 PetriNetUnfolder]: 1070/3180 cut-off events. [2022-11-18 19:40:29,374 INFO L131 PetriNetUnfolder]: For 28799/28838 co-relation queries the response was YES. [2022-11-18 19:40:29,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16843 conditions, 3180 events. 1070/3180 cut-off events. For 28799/28838 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 24800 event pairs, 219 based on Foata normal form. 28/3183 useless extension candidates. Maximal degree in co-relation 16756. Up to 1621 conditions per place. [2022-11-18 19:40:29,443 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 298 selfloop transitions, 190 changer transitions 23/600 dead transitions. [2022-11-18 19:40:29,443 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 600 transitions, 8952 flow [2022-11-18 19:40:29,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:40:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 19:40:29,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 997 transitions. [2022-11-18 19:40:29,446 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.671832884097035 [2022-11-18 19:40:29,446 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 997 transitions. [2022-11-18 19:40:29,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 997 transitions. [2022-11-18 19:40:29,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:29,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 997 transitions. [2022-11-18 19:40:29,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 71.21428571428571) internal successors, (997), 14 states have internal predecessors, (997), 0 states have call successors, (0), 0 states 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 19:40:29,451 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states 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 19:40:29,451 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states 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 19:40:29,452 INFO L175 Difference]: Start difference. First operand has 306 places, 509 transitions, 6889 flow. Second operand 14 states and 997 transitions. [2022-11-18 19:40:29,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 600 transitions, 8952 flow [2022-11-18 19:40:29,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 600 transitions, 8747 flow, removed 20 selfloop flow, removed 4 redundant places. [2022-11-18 19:40:29,717 INFO L231 Difference]: Finished difference. Result has 319 places, 534 transitions, 7742 flow [2022-11-18 19:40:29,717 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=6711, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=509, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7742, PETRI_PLACES=319, PETRI_TRANSITIONS=534} [2022-11-18 19:40:29,718 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 214 predicate places. [2022-11-18 19:40:29,718 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 534 transitions, 7742 flow [2022-11-18 19:40:29,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:29,719 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:29,719 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:29,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 19:40:29,719 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:29,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:29,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1233118821, now seen corresponding path program 9 times [2022-11-18 19:40:29,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:29,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606229226] [2022-11-18 19:40:29,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:29,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:31,031 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:31,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:31,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606229226] [2022-11-18 19:40:31,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606229226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:31,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:31,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:31,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258218104] [2022-11-18 19:40:31,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:31,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:31,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:31,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:31,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:31,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:31,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 534 transitions, 7742 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:31,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:31,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:31,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:33,336 INFO L130 PetriNetUnfolder]: 1070/3176 cut-off events. [2022-11-18 19:40:33,336 INFO L131 PetriNetUnfolder]: For 32398/32437 co-relation queries the response was YES. [2022-11-18 19:40:33,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17520 conditions, 3176 events. 1070/3176 cut-off events. For 32398/32437 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 24707 event pairs, 132 based on Foata normal form. 28/3179 useless extension candidates. Maximal degree in co-relation 17426. Up to 943 conditions per place. [2022-11-18 19:40:33,379 INFO L137 encePairwiseOnDemand]: 85/106 looper letters, 436 selfloop transitions, 151 changer transitions 30/706 dead transitions. [2022-11-18 19:40:33,380 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 706 transitions, 10438 flow [2022-11-18 19:40:33,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:40:33,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 19:40:33,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 874 transitions. [2022-11-18 19:40:33,382 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7495711835334476 [2022-11-18 19:40:33,382 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 874 transitions. [2022-11-18 19:40:33,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 874 transitions. [2022-11-18 19:40:33,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:33,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 874 transitions. [2022-11-18 19:40:33,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.45454545454545) internal successors, (874), 11 states have internal predecessors, (874), 0 states have call successors, (0), 0 states 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 19:40:33,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:33,387 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:33,387 INFO L175 Difference]: Start difference. First operand has 319 places, 534 transitions, 7742 flow. Second operand 11 states and 874 transitions. [2022-11-18 19:40:33,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 706 transitions, 10438 flow [2022-11-18 19:40:33,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 706 transitions, 10236 flow, removed 79 selfloop flow, removed 2 redundant places. [2022-11-18 19:40:33,695 INFO L231 Difference]: Finished difference. Result has 332 places, 545 transitions, 8200 flow [2022-11-18 19:40:33,695 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=7543, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8200, PETRI_PLACES=332, PETRI_TRANSITIONS=545} [2022-11-18 19:40:33,696 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 227 predicate places. [2022-11-18 19:40:33,696 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 545 transitions, 8200 flow [2022-11-18 19:40:33,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:33,697 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:33,697 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:33,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 19:40:33,697 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:33,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:33,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1180980767, now seen corresponding path program 10 times [2022-11-18 19:40:33,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:33,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243936310] [2022-11-18 19:40:33,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:33,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:34,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:34,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243936310] [2022-11-18 19:40:34,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243936310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:34,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:34,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:34,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526019875] [2022-11-18 19:40:34,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:34,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:34,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:34,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:34,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:34,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:34,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 545 transitions, 8200 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:34,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:34,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:34,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:37,009 INFO L130 PetriNetUnfolder]: 1071/3200 cut-off events. [2022-11-18 19:40:37,009 INFO L131 PetriNetUnfolder]: For 36053/36091 co-relation queries the response was YES. [2022-11-18 19:40:37,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18146 conditions, 3200 events. 1071/3200 cut-off events. For 36053/36091 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 24887 event pairs, 193 based on Foata normal form. 28/3195 useless extension candidates. Maximal degree in co-relation 18048. Up to 943 conditions per place. [2022-11-18 19:40:37,037 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 453 selfloop transitions, 139 changer transitions 26/707 dead transitions. [2022-11-18 19:40:37,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 707 transitions, 10927 flow [2022-11-18 19:40:37,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:40:37,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 19:40:37,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 852 transitions. [2022-11-18 19:40:37,039 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7307032590051458 [2022-11-18 19:40:37,040 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 852 transitions. [2022-11-18 19:40:37,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 852 transitions. [2022-11-18 19:40:37,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:37,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 852 transitions. [2022-11-18 19:40:37,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 77.45454545454545) internal successors, (852), 11 states have internal predecessors, (852), 0 states have call successors, (0), 0 states 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 19:40:37,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:37,044 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:37,044 INFO L175 Difference]: Start difference. First operand has 332 places, 545 transitions, 8200 flow. Second operand 11 states and 852 transitions. [2022-11-18 19:40:37,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 707 transitions, 10927 flow [2022-11-18 19:40:37,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 707 transitions, 10700 flow, removed 40 selfloop flow, removed 5 redundant places. [2022-11-18 19:40:37,264 INFO L231 Difference]: Finished difference. Result has 341 places, 555 transitions, 8591 flow [2022-11-18 19:40:37,265 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8010, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8591, PETRI_PLACES=341, PETRI_TRANSITIONS=555} [2022-11-18 19:40:37,266 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 236 predicate places. [2022-11-18 19:40:37,266 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 555 transitions, 8591 flow [2022-11-18 19:40:37,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:37,266 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:37,267 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:37,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 19:40:37,267 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:37,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:37,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1641501999, now seen corresponding path program 11 times [2022-11-18 19:40:37,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:37,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920457589] [2022-11-18 19:40:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:37,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:38,417 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:38,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:38,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920457589] [2022-11-18 19:40:38,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920457589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:38,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:38,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:38,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599172849] [2022-11-18 19:40:38,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:38,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:38,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:38,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:38,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:38,419 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:38,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 555 transitions, 8591 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:38,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:38,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:38,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:40,502 INFO L130 PetriNetUnfolder]: 1070/3203 cut-off events. [2022-11-18 19:40:40,502 INFO L131 PetriNetUnfolder]: For 37502/37540 co-relation queries the response was YES. [2022-11-18 19:40:40,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18365 conditions, 3203 events. 1070/3203 cut-off events. For 37502/37540 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 24955 event pairs, 188 based on Foata normal form. 28/3200 useless extension candidates. Maximal degree in co-relation 18264. Up to 943 conditions per place. [2022-11-18 19:40:40,563 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 447 selfloop transitions, 149 changer transitions 27/712 dead transitions. [2022-11-18 19:40:40,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 712 transitions, 11138 flow [2022-11-18 19:40:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:40:40,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 19:40:40,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 860 transitions. [2022-11-18 19:40:40,565 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7375643224699828 [2022-11-18 19:40:40,565 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 860 transitions. [2022-11-18 19:40:40,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 860 transitions. [2022-11-18 19:40:40,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:40,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 860 transitions. [2022-11-18 19:40:40,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 78.18181818181819) internal successors, (860), 11 states have internal predecessors, (860), 0 states have call successors, (0), 0 states 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 19:40:40,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:40,570 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:40,570 INFO L175 Difference]: Start difference. First operand has 341 places, 555 transitions, 8591 flow. Second operand 11 states and 860 transitions. [2022-11-18 19:40:40,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 712 transitions, 11138 flow [2022-11-18 19:40:40,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 712 transitions, 10927 flow, removed 15 selfloop flow, removed 5 redundant places. [2022-11-18 19:40:40,816 INFO L231 Difference]: Finished difference. Result has 349 places, 559 transitions, 8851 flow [2022-11-18 19:40:40,817 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8382, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=555, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8851, PETRI_PLACES=349, PETRI_TRANSITIONS=559} [2022-11-18 19:40:40,817 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 244 predicate places. [2022-11-18 19:40:40,817 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 559 transitions, 8851 flow [2022-11-18 19:40:40,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:40,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:40,818 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:40,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 19:40:40,818 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:40,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:40,819 INFO L85 PathProgramCache]: Analyzing trace with hash 812752821, now seen corresponding path program 12 times [2022-11-18 19:40:40,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:40,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043675155] [2022-11-18 19:40:40,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:40,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:41,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:41,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043675155] [2022-11-18 19:40:41,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043675155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:41,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:41,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:41,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419923910] [2022-11-18 19:40:41,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:41,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:41,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:41,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:41,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:41,732 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:41,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 559 transitions, 8851 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:41,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:41,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:41,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:43,437 INFO L130 PetriNetUnfolder]: 1075/3201 cut-off events. [2022-11-18 19:40:43,437 INFO L131 PetriNetUnfolder]: For 39720/39758 co-relation queries the response was YES. [2022-11-18 19:40:43,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18678 conditions, 3201 events. 1075/3201 cut-off events. For 39720/39758 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 25104 event pairs, 247 based on Foata normal form. 28/3200 useless extension candidates. Maximal degree in co-relation 18574. Up to 1645 conditions per place. [2022-11-18 19:40:43,476 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 332 selfloop transitions, 195 changer transitions 22/638 dead transitions. [2022-11-18 19:40:43,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 638 transitions, 10678 flow [2022-11-18 19:40:43,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:40:43,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 19:40:43,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 751 transitions. [2022-11-18 19:40:43,478 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7084905660377359 [2022-11-18 19:40:43,478 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 751 transitions. [2022-11-18 19:40:43,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 751 transitions. [2022-11-18 19:40:43,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:43,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 751 transitions. [2022-11-18 19:40:43,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.1) internal successors, (751), 10 states have internal predecessors, (751), 0 states have call successors, (0), 0 states 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 19:40:43,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states 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 19:40:43,482 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states 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 19:40:43,483 INFO L175 Difference]: Start difference. First operand has 349 places, 559 transitions, 8851 flow. Second operand 10 states and 751 transitions. [2022-11-18 19:40:43,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 638 transitions, 10678 flow [2022-11-18 19:40:43,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 638 transitions, 10443 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-18 19:40:43,727 INFO L231 Difference]: Finished difference. Result has 356 places, 567 transitions, 9191 flow [2022-11-18 19:40:43,727 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8617, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9191, PETRI_PLACES=356, PETRI_TRANSITIONS=567} [2022-11-18 19:40:43,728 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 251 predicate places. [2022-11-18 19:40:43,728 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 567 transitions, 9191 flow [2022-11-18 19:40:43,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:43,728 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:43,728 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:43,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 19:40:43,729 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:43,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:43,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2013931571, now seen corresponding path program 13 times [2022-11-18 19:40:43,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:43,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18537103] [2022-11-18 19:40:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:43,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:44,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:44,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18537103] [2022-11-18 19:40:44,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18537103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:44,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:44,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:44,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209664232] [2022-11-18 19:40:44,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:44,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:44,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:44,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:44,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:44,613 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:44,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 567 transitions, 9191 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:44,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:44,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:44,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:46,278 INFO L130 PetriNetUnfolder]: 1085/3229 cut-off events. [2022-11-18 19:40:46,278 INFO L131 PetriNetUnfolder]: For 42826/42865 co-relation queries the response was YES. [2022-11-18 19:40:46,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19129 conditions, 3229 events. 1085/3229 cut-off events. For 42826/42865 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 25288 event pairs, 219 based on Foata normal form. 29/3224 useless extension candidates. Maximal degree in co-relation 19021. Up to 1638 conditions per place. [2022-11-18 19:40:46,311 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 339 selfloop transitions, 197 changer transitions 21/646 dead transitions. [2022-11-18 19:40:46,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 646 transitions, 11060 flow [2022-11-18 19:40:46,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:40:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 19:40:46,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 741 transitions. [2022-11-18 19:40:46,313 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6990566037735849 [2022-11-18 19:40:46,313 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 741 transitions. [2022-11-18 19:40:46,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 741 transitions. [2022-11-18 19:40:46,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:46,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 741 transitions. [2022-11-18 19:40:46,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.1) internal successors, (741), 10 states have internal predecessors, (741), 0 states have call successors, (0), 0 states 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 19:40:46,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states 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 19:40:46,316 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 106.0) internal successors, (1166), 11 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states 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 19:40:46,317 INFO L175 Difference]: Start difference. First operand has 356 places, 567 transitions, 9191 flow. Second operand 10 states and 741 transitions. [2022-11-18 19:40:46,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 646 transitions, 11060 flow [2022-11-18 19:40:46,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 646 transitions, 10693 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-11-18 19:40:46,590 INFO L231 Difference]: Finished difference. Result has 365 places, 580 transitions, 9496 flow [2022-11-18 19:40:46,590 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=8834, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=9496, PETRI_PLACES=365, PETRI_TRANSITIONS=580} [2022-11-18 19:40:46,591 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 260 predicate places. [2022-11-18 19:40:46,591 INFO L495 AbstractCegarLoop]: Abstraction has has 365 places, 580 transitions, 9496 flow [2022-11-18 19:40:46,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:46,591 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:46,592 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:46,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 19:40:46,592 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:46,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:46,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1929394253, now seen corresponding path program 14 times [2022-11-18 19:40:46,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:46,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91544233] [2022-11-18 19:40:46,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:46,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:47,636 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:47,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:47,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91544233] [2022-11-18 19:40:47,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91544233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:47,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:47,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:47,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269365797] [2022-11-18 19:40:47,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:47,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:47,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:47,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:47,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:47,639 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:47,640 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 580 transitions, 9496 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:47,640 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:47,640 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:47,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:49,673 INFO L130 PetriNetUnfolder]: 1090/3240 cut-off events. [2022-11-18 19:40:49,673 INFO L131 PetriNetUnfolder]: For 44290/44328 co-relation queries the response was YES. [2022-11-18 19:40:49,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19426 conditions, 3240 events. 1090/3240 cut-off events. For 44290/44328 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 25466 event pairs, 264 based on Foata normal form. 28/3234 useless extension candidates. Maximal degree in co-relation 19313. Up to 1644 conditions per place. [2022-11-18 19:40:49,714 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 329 selfloop transitions, 215 changer transitions 21/654 dead transitions. [2022-11-18 19:40:49,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 654 transitions, 11388 flow [2022-11-18 19:40:49,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:40:49,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 19:40:49,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1000 transitions. [2022-11-18 19:40:49,717 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6738544474393531 [2022-11-18 19:40:49,717 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1000 transitions. [2022-11-18 19:40:49,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1000 transitions. [2022-11-18 19:40:49,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:49,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1000 transitions. [2022-11-18 19:40:49,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 71.42857142857143) internal successors, (1000), 14 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states 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 19:40:49,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states 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 19:40:49,723 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states 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 19:40:49,723 INFO L175 Difference]: Start difference. First operand has 365 places, 580 transitions, 9496 flow. Second operand 14 states and 1000 transitions. [2022-11-18 19:40:49,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 654 transitions, 11388 flow [2022-11-18 19:40:50,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 654 transitions, 11048 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-11-18 19:40:50,114 INFO L231 Difference]: Finished difference. Result has 379 places, 591 transitions, 9893 flow [2022-11-18 19:40:50,114 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9165, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=204, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9893, PETRI_PLACES=379, PETRI_TRANSITIONS=591} [2022-11-18 19:40:50,114 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 274 predicate places. [2022-11-18 19:40:50,115 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 591 transitions, 9893 flow [2022-11-18 19:40:50,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:50,115 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:50,115 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:50,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 19:40:50,116 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:50,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:50,116 INFO L85 PathProgramCache]: Analyzing trace with hash 215586857, now seen corresponding path program 15 times [2022-11-18 19:40:50,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:50,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360538735] [2022-11-18 19:40:50,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:50,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:51,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:51,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360538735] [2022-11-18 19:40:51,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360538735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:51,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:51,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:51,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930629038] [2022-11-18 19:40:51,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:51,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:51,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:51,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:51,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:51,030 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:51,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 591 transitions, 9893 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:51,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:51,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:51,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:52,795 INFO L130 PetriNetUnfolder]: 1090/3244 cut-off events. [2022-11-18 19:40:52,795 INFO L131 PetriNetUnfolder]: For 45368/45407 co-relation queries the response was YES. [2022-11-18 19:40:52,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19532 conditions, 3244 events. 1090/3244 cut-off events. For 45368/45407 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 25490 event pairs, 193 based on Foata normal form. 29/3255 useless extension candidates. Maximal degree in co-relation 19414. Up to 1675 conditions per place. [2022-11-18 19:40:52,842 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 339 selfloop transitions, 219 changer transitions 20/667 dead transitions. [2022-11-18 19:40:52,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 667 transitions, 11666 flow [2022-11-18 19:40:52,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:40:52,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 19:40:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 825 transitions. [2022-11-18 19:40:52,844 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7075471698113207 [2022-11-18 19:40:52,844 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 825 transitions. [2022-11-18 19:40:52,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 825 transitions. [2022-11-18 19:40:52,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:52,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 825 transitions. [2022-11-18 19:40:52,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 0 states have call successors, (0), 0 states 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 19:40:52,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:52,849 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 106.0) internal successors, (1272), 12 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states 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 19:40:52,849 INFO L175 Difference]: Start difference. First operand has 379 places, 591 transitions, 9893 flow. Second operand 11 states and 825 transitions. [2022-11-18 19:40:52,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 667 transitions, 11666 flow [2022-11-18 19:40:53,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 667 transitions, 11262 flow, removed 10 selfloop flow, removed 9 redundant places. [2022-11-18 19:40:53,168 INFO L231 Difference]: Finished difference. Result has 382 places, 593 transitions, 9982 flow [2022-11-18 19:40:53,168 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9491, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=217, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9982, PETRI_PLACES=382, PETRI_TRANSITIONS=593} [2022-11-18 19:40:53,168 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 277 predicate places. [2022-11-18 19:40:53,169 INFO L495 AbstractCegarLoop]: Abstraction has has 382 places, 593 transitions, 9982 flow [2022-11-18 19:40:53,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:53,169 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:53,169 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:53,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 19:40:53,169 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:53,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:53,170 INFO L85 PathProgramCache]: Analyzing trace with hash -680757553, now seen corresponding path program 16 times [2022-11-18 19:40:53,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:53,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858309332] [2022-11-18 19:40:53,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:53,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:54,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:54,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858309332] [2022-11-18 19:40:54,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858309332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:54,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:54,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:54,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545165114] [2022-11-18 19:40:54,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:54,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:54,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:54,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:54,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:54,082 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:54,083 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 593 transitions, 9982 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:54,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:54,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:54,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:56,057 INFO L130 PetriNetUnfolder]: 1087/3268 cut-off events. [2022-11-18 19:40:56,057 INFO L131 PetriNetUnfolder]: For 45202/45240 co-relation queries the response was YES. [2022-11-18 19:40:56,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19670 conditions, 3268 events. 1087/3268 cut-off events. For 45202/45240 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 25671 event pairs, 257 based on Foata normal form. 28/3264 useless extension candidates. Maximal degree in co-relation 19551. Up to 1664 conditions per place. [2022-11-18 19:40:56,105 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 344 selfloop transitions, 211 changer transitions 22/666 dead transitions. [2022-11-18 19:40:56,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 666 transitions, 11807 flow [2022-11-18 19:40:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:40:56,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 19:40:56,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 945 transitions. [2022-11-18 19:40:56,107 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6857764876632801 [2022-11-18 19:40:56,107 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 945 transitions. [2022-11-18 19:40:56,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 945 transitions. [2022-11-18 19:40:56,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:56,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 945 transitions. [2022-11-18 19:40:56,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.6923076923077) internal successors, (945), 13 states have internal predecessors, (945), 0 states have call successors, (0), 0 states 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 19:40:56,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:40:56,110 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:40:56,110 INFO L175 Difference]: Start difference. First operand has 382 places, 593 transitions, 9982 flow. Second operand 13 states and 945 transitions. [2022-11-18 19:40:56,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 666 transitions, 11807 flow [2022-11-18 19:40:56,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 666 transitions, 11366 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-11-18 19:40:56,581 INFO L231 Difference]: Finished difference. Result has 390 places, 599 transitions, 10170 flow [2022-11-18 19:40:56,582 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9553, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10170, PETRI_PLACES=390, PETRI_TRANSITIONS=599} [2022-11-18 19:40:56,582 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 285 predicate places. [2022-11-18 19:40:56,582 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 599 transitions, 10170 flow [2022-11-18 19:40:56,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:56,583 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:56,583 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:56,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 19:40:56,583 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:56,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:56,584 INFO L85 PathProgramCache]: Analyzing trace with hash -435883879, now seen corresponding path program 17 times [2022-11-18 19:40:56,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:56,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934370104] [2022-11-18 19:40:56,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:56,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:57,499 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:40:57,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:57,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934370104] [2022-11-18 19:40:57,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934370104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:57,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:57,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:40:57,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489314198] [2022-11-18 19:40:57,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:57,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:40:57,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:57,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:40:57,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:40:57,501 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 106 [2022-11-18 19:40:57,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 599 transitions, 10170 flow. Second operand has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:57,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:40:57,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 106 [2022-11-18 19:40:57,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:40:59,527 INFO L130 PetriNetUnfolder]: 1086/3263 cut-off events. [2022-11-18 19:40:59,527 INFO L131 PetriNetUnfolder]: For 45943/45981 co-relation queries the response was YES. [2022-11-18 19:40:59,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19627 conditions, 3263 events. 1086/3263 cut-off events. For 45943/45981 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 25648 event pairs, 275 based on Foata normal form. 28/3252 useless extension candidates. Maximal degree in co-relation 19506. Up to 1644 conditions per place. [2022-11-18 19:40:59,565 INFO L137 encePairwiseOnDemand]: 86/106 looper letters, 338 selfloop transitions, 218 changer transitions 21/666 dead transitions. [2022-11-18 19:40:59,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 666 transitions, 11968 flow [2022-11-18 19:40:59,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:40:59,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 19:40:59,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 936 transitions. [2022-11-18 19:40:59,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6792452830188679 [2022-11-18 19:40:59,567 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 936 transitions. [2022-11-18 19:40:59,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 936 transitions. [2022-11-18 19:40:59,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:40:59,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 936 transitions. [2022-11-18 19:40:59,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 72.0) internal successors, (936), 13 states have internal predecessors, (936), 0 states have call successors, (0), 0 states 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 19:40:59,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:40:59,572 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:40:59,572 INFO L175 Difference]: Start difference. First operand has 390 places, 599 transitions, 10170 flow. Second operand 13 states and 936 transitions. [2022-11-18 19:40:59,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 666 transitions, 11968 flow [2022-11-18 19:40:59,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 666 transitions, 11552 flow, removed 9 selfloop flow, removed 8 redundant places. [2022-11-18 19:40:59,885 INFO L231 Difference]: Finished difference. Result has 398 places, 607 transitions, 10457 flow [2022-11-18 19:40:59,886 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=9766, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=599, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=210, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10457, PETRI_PLACES=398, PETRI_TRANSITIONS=607} [2022-11-18 19:40:59,886 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 293 predicate places. [2022-11-18 19:40:59,886 INFO L495 AbstractCegarLoop]: Abstraction has has 398 places, 607 transitions, 10457 flow [2022-11-18 19:40:59,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 63.5) internal successors, (635), 10 states have internal predecessors, (635), 0 states have call successors, (0), 0 states 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 19:40:59,887 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:40:59,887 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:40:59,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-18 19:40:59,887 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:40:59,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:59,887 INFO L85 PathProgramCache]: Analyzing trace with hash 656178297, now seen corresponding path program 1 times [2022-11-18 19:40:59,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:59,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048292448] [2022-11-18 19:40:59,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:59,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:02,813 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:41:02,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:02,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048292448] [2022-11-18 19:41:02,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048292448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:02,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:02,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:41:02,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164842028] [2022-11-18 19:41:02,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:02,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:41:02,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:02,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:41:02,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:41:02,816 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:41:02,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 398 places, 607 transitions, 10457 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:02,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:02,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:41:02,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:05,656 INFO L130 PetriNetUnfolder]: 1142/3465 cut-off events. [2022-11-18 19:41:05,656 INFO L131 PetriNetUnfolder]: For 50167/50193 co-relation queries the response was YES. [2022-11-18 19:41:05,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20660 conditions, 3465 events. 1142/3465 cut-off events. For 50167/50193 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 27971 event pairs, 158 based on Foata normal form. 5/3432 useless extension candidates. Maximal degree in co-relation 20536. Up to 870 conditions per place. [2022-11-18 19:41:05,701 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 667 selfloop transitions, 119 changer transitions 17/906 dead transitions. [2022-11-18 19:41:05,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 906 transitions, 15133 flow [2022-11-18 19:41:05,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:41:05,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 19:41:05,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1185 transitions. [2022-11-18 19:41:05,703 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7452830188679245 [2022-11-18 19:41:05,703 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1185 transitions. [2022-11-18 19:41:05,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1185 transitions. [2022-11-18 19:41:05,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:05,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1185 transitions. [2022-11-18 19:41:05,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 79.0) internal successors, (1185), 15 states have internal predecessors, (1185), 0 states have call successors, (0), 0 states 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 19:41:05,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states 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 19:41:05,708 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 106.0) internal successors, (1696), 16 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states 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 19:41:05,708 INFO L175 Difference]: Start difference. First operand has 398 places, 607 transitions, 10457 flow. Second operand 15 states and 1185 transitions. [2022-11-18 19:41:05,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 906 transitions, 15133 flow [2022-11-18 19:41:06,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 906 transitions, 14780 flow, removed 13 selfloop flow, removed 7 redundant places. [2022-11-18 19:41:06,066 INFO L231 Difference]: Finished difference. Result has 416 places, 684 transitions, 11732 flow [2022-11-18 19:41:06,067 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=10140, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=607, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11732, PETRI_PLACES=416, PETRI_TRANSITIONS=684} [2022-11-18 19:41:06,068 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 311 predicate places. [2022-11-18 19:41:06,068 INFO L495 AbstractCegarLoop]: Abstraction has has 416 places, 684 transitions, 11732 flow [2022-11-18 19:41:06,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:06,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:06,068 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:41:06,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-18 19:41:06,069 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:41:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:06,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1657790239, now seen corresponding path program 2 times [2022-11-18 19:41:06,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:06,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712124186] [2022-11-18 19:41:06,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:06,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:08,123 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:41:08,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:08,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712124186] [2022-11-18 19:41:08,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712124186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:08,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:08,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:41:08,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449105674] [2022-11-18 19:41:08,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:08,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:41:08,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:08,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:41:08,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:41:08,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:41:08,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 416 places, 684 transitions, 11732 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:08,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:08,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:41:08,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:10,582 INFO L130 PetriNetUnfolder]: 1206/3659 cut-off events. [2022-11-18 19:41:10,582 INFO L131 PetriNetUnfolder]: For 58007/58054 co-relation queries the response was YES. [2022-11-18 19:41:10,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22628 conditions, 3659 events. 1206/3659 cut-off events. For 58007/58054 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 30034 event pairs, 139 based on Foata normal form. 20/3645 useless extension candidates. Maximal degree in co-relation 22495. Up to 1732 conditions per place. [2022-11-18 19:41:10,632 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 587 selfloop transitions, 144 changer transitions 24/858 dead transitions. [2022-11-18 19:41:10,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 858 transitions, 15776 flow [2022-11-18 19:41:10,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:41:10,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 19:41:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 993 transitions. [2022-11-18 19:41:10,634 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7206095791001451 [2022-11-18 19:41:10,634 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 993 transitions. [2022-11-18 19:41:10,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 993 transitions. [2022-11-18 19:41:10,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:10,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 993 transitions. [2022-11-18 19:41:10,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.38461538461539) internal successors, (993), 13 states have internal predecessors, (993), 0 states have call successors, (0), 0 states 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 19:41:10,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:41:10,639 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:41:10,639 INFO L175 Difference]: Start difference. First operand has 416 places, 684 transitions, 11732 flow. Second operand 13 states and 993 transitions. [2022-11-18 19:41:10,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 858 transitions, 15776 flow [2022-11-18 19:41:11,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 858 transitions, 15539 flow, removed 25 selfloop flow, removed 2 redundant places. [2022-11-18 19:41:11,120 INFO L231 Difference]: Finished difference. Result has 432 places, 725 transitions, 13208 flow [2022-11-18 19:41:11,121 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=11554, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=684, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=13208, PETRI_PLACES=432, PETRI_TRANSITIONS=725} [2022-11-18 19:41:11,125 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 327 predicate places. [2022-11-18 19:41:11,126 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 725 transitions, 13208 flow [2022-11-18 19:41:11,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:11,126 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:11,126 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:41:11,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-18 19:41:11,127 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:41:11,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:11,127 INFO L85 PathProgramCache]: Analyzing trace with hash 573418173, now seen corresponding path program 3 times [2022-11-18 19:41:11,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:11,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434444512] [2022-11-18 19:41:11,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:11,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:13,777 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:41:13,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:13,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434444512] [2022-11-18 19:41:13,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434444512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:13,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:13,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:41:13,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566511467] [2022-11-18 19:41:13,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:13,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:41:13,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:13,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:41:13,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:41:13,779 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:41:13,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 725 transitions, 13208 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:13,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:13,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:41:13,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:16,471 INFO L130 PetriNetUnfolder]: 1325/3961 cut-off events. [2022-11-18 19:41:16,472 INFO L131 PetriNetUnfolder]: For 73542/73604 co-relation queries the response was YES. [2022-11-18 19:41:16,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25325 conditions, 3961 events. 1325/3961 cut-off events. For 73542/73604 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 33133 event pairs, 167 based on Foata normal form. 30/3956 useless extension candidates. Maximal degree in co-relation 25186. Up to 1778 conditions per place. [2022-11-18 19:41:16,556 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 610 selfloop transitions, 195 changer transitions 9/917 dead transitions. [2022-11-18 19:41:16,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 917 transitions, 17757 flow [2022-11-18 19:41:16,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:41:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 19:41:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1065 transitions. [2022-11-18 19:41:16,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.717654986522911 [2022-11-18 19:41:16,559 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1065 transitions. [2022-11-18 19:41:16,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1065 transitions. [2022-11-18 19:41:16,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:16,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1065 transitions. [2022-11-18 19:41:16,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 76.07142857142857) internal successors, (1065), 14 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states 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 19:41:16,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states 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 19:41:16,564 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states 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 19:41:16,564 INFO L175 Difference]: Start difference. First operand has 432 places, 725 transitions, 13208 flow. Second operand 14 states and 1065 transitions. [2022-11-18 19:41:16,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 917 transitions, 17757 flow [2022-11-18 19:41:17,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 917 transitions, 17649 flow, removed 27 selfloop flow, removed 4 redundant places. [2022-11-18 19:41:17,253 INFO L231 Difference]: Finished difference. Result has 450 places, 783 transitions, 15444 flow [2022-11-18 19:41:17,255 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=13112, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15444, PETRI_PLACES=450, PETRI_TRANSITIONS=783} [2022-11-18 19:41:17,256 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 345 predicate places. [2022-11-18 19:41:17,256 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 783 transitions, 15444 flow [2022-11-18 19:41:17,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:17,256 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:17,257 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:41:17,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-18 19:41:17,257 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:41:17,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:17,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1999922211, now seen corresponding path program 4 times [2022-11-18 19:41:17,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:17,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032253027] [2022-11-18 19:41:17,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:17,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:41:19,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:19,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032253027] [2022-11-18 19:41:19,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032253027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:19,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:19,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:41:19,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470044777] [2022-11-18 19:41:19,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:19,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:41:19,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:19,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:41:19,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:41:19,153 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:41:19,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 783 transitions, 15444 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:19,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:19,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:41:19,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:22,071 INFO L130 PetriNetUnfolder]: 1430/4286 cut-off events. [2022-11-18 19:41:22,071 INFO L131 PetriNetUnfolder]: For 97431/97531 co-relation queries the response was YES. [2022-11-18 19:41:22,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28577 conditions, 4286 events. 1430/4286 cut-off events. For 97431/97531 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 36659 event pairs, 152 based on Foata normal form. 33/4279 useless extension candidates. Maximal degree in co-relation 28428. Up to 1737 conditions per place. [2022-11-18 19:41:22,138 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 623 selfloop transitions, 254 changer transitions 6/986 dead transitions. [2022-11-18 19:41:22,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 986 transitions, 20423 flow [2022-11-18 19:41:22,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:41:22,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 19:41:22,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 999 transitions. [2022-11-18 19:41:22,140 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7249637155297532 [2022-11-18 19:41:22,140 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 999 transitions. [2022-11-18 19:41:22,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 999 transitions. [2022-11-18 19:41:22,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:22,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 999 transitions. [2022-11-18 19:41:22,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 76.84615384615384) internal successors, (999), 13 states have internal predecessors, (999), 0 states have call successors, (0), 0 states 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 19:41:22,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:41:22,146 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:41:22,146 INFO L175 Difference]: Start difference. First operand has 450 places, 783 transitions, 15444 flow. Second operand 13 states and 999 transitions. [2022-11-18 19:41:22,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 986 transitions, 20423 flow [2022-11-18 19:41:22,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 459 places, 986 transitions, 20279 flow, removed 46 selfloop flow, removed 3 redundant places. [2022-11-18 19:41:22,810 INFO L231 Difference]: Finished difference. Result has 470 places, 853 transitions, 18196 flow [2022-11-18 19:41:22,811 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=15315, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=783, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=563, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=18196, PETRI_PLACES=470, PETRI_TRANSITIONS=853} [2022-11-18 19:41:22,812 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 365 predicate places. [2022-11-18 19:41:22,812 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 853 transitions, 18196 flow [2022-11-18 19:41:22,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:22,813 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:22,813 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:41:22,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-18 19:41:22,813 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:41:22,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:22,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1232998115, now seen corresponding path program 5 times [2022-11-18 19:41:22,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:22,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126145303] [2022-11-18 19:41:22,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:22,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:25,420 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:41:25,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:25,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126145303] [2022-11-18 19:41:25,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126145303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:25,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:25,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:41:25,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806582954] [2022-11-18 19:41:25,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:25,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:41:25,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:25,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:41:25,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:41:25,423 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:41:25,424 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 853 transitions, 18196 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:25,424 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:25,424 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:41:25,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:29,696 INFO L130 PetriNetUnfolder]: 1628/4811 cut-off events. [2022-11-18 19:41:29,696 INFO L131 PetriNetUnfolder]: For 136287/136410 co-relation queries the response was YES. [2022-11-18 19:41:29,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33920 conditions, 4811 events. 1628/4811 cut-off events. For 136287/136410 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 42056 event pairs, 209 based on Foata normal form. 57/4826 useless extension candidates. Maximal degree in co-relation 33760. Up to 1954 conditions per place. [2022-11-18 19:41:29,786 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 696 selfloop transitions, 317 changer transitions 6/1122 dead transitions. [2022-11-18 19:41:29,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 1122 transitions, 25174 flow [2022-11-18 19:41:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 19:41:29,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 19:41:29,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1366 transitions. [2022-11-18 19:41:29,789 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7159329140461216 [2022-11-18 19:41:29,789 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1366 transitions. [2022-11-18 19:41:29,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1366 transitions. [2022-11-18 19:41:29,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:29,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1366 transitions. [2022-11-18 19:41:29,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 75.88888888888889) internal successors, (1366), 18 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states 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 19:41:29,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states 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 19:41:29,793 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states 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 19:41:29,793 INFO L175 Difference]: Start difference. First operand has 470 places, 853 transitions, 18196 flow. Second operand 18 states and 1366 transitions. [2022-11-18 19:41:29,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 487 places, 1122 transitions, 25174 flow [2022-11-18 19:41:30,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1122 transitions, 24812 flow, removed 170 selfloop flow, removed 1 redundant places. [2022-11-18 19:41:30,945 INFO L231 Difference]: Finished difference. Result has 499 places, 953 transitions, 21957 flow [2022-11-18 19:41:30,946 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=17988, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=853, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=227, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=594, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=21957, PETRI_PLACES=499, PETRI_TRANSITIONS=953} [2022-11-18 19:41:30,947 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 394 predicate places. [2022-11-18 19:41:30,947 INFO L495 AbstractCegarLoop]: Abstraction has has 499 places, 953 transitions, 21957 flow [2022-11-18 19:41:30,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:30,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:30,947 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:41:30,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-18 19:41:30,948 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:41:30,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:30,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1544493265, now seen corresponding path program 6 times [2022-11-18 19:41:30,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:30,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255220266] [2022-11-18 19:41:30,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:30,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:30,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:41:33,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:33,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255220266] [2022-11-18 19:41:33,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255220266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:33,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:33,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:41:33,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288151991] [2022-11-18 19:41:33,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:33,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:41:33,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:33,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:41:33,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:41:33,694 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:41:33,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 499 places, 953 transitions, 21957 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:33,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:33,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:41:33,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:38,561 INFO L130 PetriNetUnfolder]: 1683/4963 cut-off events. [2022-11-18 19:41:38,561 INFO L131 PetriNetUnfolder]: For 153299/153417 co-relation queries the response was YES. [2022-11-18 19:41:38,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36189 conditions, 4963 events. 1683/4963 cut-off events. For 153299/153417 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 43775 event pairs, 202 based on Foata normal form. 42/4963 useless extension candidates. Maximal degree in co-relation 36016. Up to 1826 conditions per place. [2022-11-18 19:41:38,634 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 695 selfloop transitions, 374 changer transitions 5/1177 dead transitions. [2022-11-18 19:41:38,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 1177 transitions, 27493 flow [2022-11-18 19:41:38,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 19:41:38,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 19:41:38,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1497 transitions. [2022-11-18 19:41:38,639 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7061320754716981 [2022-11-18 19:41:38,639 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1497 transitions. [2022-11-18 19:41:38,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1497 transitions. [2022-11-18 19:41:38,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:38,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1497 transitions. [2022-11-18 19:41:38,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 74.85) internal successors, (1497), 20 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states 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 19:41:38,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states 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 19:41:38,645 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states 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 19:41:38,645 INFO L175 Difference]: Start difference. First operand has 499 places, 953 transitions, 21957 flow. Second operand 20 states and 1497 transitions. [2022-11-18 19:41:38,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 1177 transitions, 27493 flow [2022-11-18 19:41:40,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 516 places, 1177 transitions, 27316 flow, removed 67 selfloop flow, removed 2 redundant places. [2022-11-18 19:41:40,264 INFO L231 Difference]: Finished difference. Result has 530 places, 1011 transitions, 24509 flow [2022-11-18 19:41:40,265 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=21801, PETRI_DIFFERENCE_MINUEND_PLACES=497, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=953, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=318, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=24509, PETRI_PLACES=530, PETRI_TRANSITIONS=1011} [2022-11-18 19:41:40,265 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 425 predicate places. [2022-11-18 19:41:40,266 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 1011 transitions, 24509 flow [2022-11-18 19:41:40,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:40,266 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:40,266 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:41:40,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-18 19:41:40,267 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:41:40,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:40,267 INFO L85 PathProgramCache]: Analyzing trace with hash -768199011, now seen corresponding path program 7 times [2022-11-18 19:41:40,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:40,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656295741] [2022-11-18 19:41:40,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:40,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:41:42,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:42,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656295741] [2022-11-18 19:41:42,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656295741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:42,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:42,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:41:42,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244522897] [2022-11-18 19:41:42,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:42,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:41:42,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:42,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:41:42,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:41:42,532 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:41:42,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 1011 transitions, 24509 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:42,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:42,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:41:42,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:47,654 INFO L130 PetriNetUnfolder]: 1775/5208 cut-off events. [2022-11-18 19:41:47,654 INFO L131 PetriNetUnfolder]: For 179592/179738 co-relation queries the response was YES. [2022-11-18 19:41:47,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39787 conditions, 5208 events. 1775/5208 cut-off events. For 179592/179738 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 46393 event pairs, 226 based on Foata normal form. 56/5218 useless extension candidates. Maximal degree in co-relation 39600. Up to 2030 conditions per place. [2022-11-18 19:41:47,755 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 724 selfloop transitions, 392 changer transitions 5/1224 dead transitions. [2022-11-18 19:41:47,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 1224 transitions, 30275 flow [2022-11-18 19:41:47,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:41:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-18 19:41:47,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1285 transitions. [2022-11-18 19:41:47,765 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7130965593784684 [2022-11-18 19:41:47,765 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1285 transitions. [2022-11-18 19:41:47,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1285 transitions. [2022-11-18 19:41:47,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:47,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1285 transitions. [2022-11-18 19:41:47,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 75.58823529411765) internal successors, (1285), 17 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states 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 19:41:47,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states 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 19:41:47,768 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 106.0) internal successors, (1908), 18 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states 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 19:41:47,768 INFO L175 Difference]: Start difference. First operand has 530 places, 1011 transitions, 24509 flow. Second operand 17 states and 1285 transitions. [2022-11-18 19:41:47,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 1224 transitions, 30275 flow [2022-11-18 19:41:49,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 541 places, 1224 transitions, 29510 flow, removed 71 selfloop flow, removed 5 redundant places. [2022-11-18 19:41:49,647 INFO L231 Difference]: Finished difference. Result has 550 places, 1069 transitions, 26493 flow [2022-11-18 19:41:49,648 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=23776, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1011, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=339, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=26493, PETRI_PLACES=550, PETRI_TRANSITIONS=1069} [2022-11-18 19:41:49,648 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 445 predicate places. [2022-11-18 19:41:49,648 INFO L495 AbstractCegarLoop]: Abstraction has has 550 places, 1069 transitions, 26493 flow [2022-11-18 19:41:49,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:49,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:41:49,649 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:41:49,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-18 19:41:49,650 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:41:49,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:49,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1375644565, now seen corresponding path program 8 times [2022-11-18 19:41:49,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:41:49,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694306340] [2022-11-18 19:41:49,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:41:49,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:41:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:41:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:41:52,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:41:52,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694306340] [2022-11-18 19:41:52,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694306340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:41:52,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:41:52,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:41:52,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460339439] [2022-11-18 19:41:52,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:41:52,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:41:52,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:41:52,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:41:52,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:41:52,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:41:52,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 1069 transitions, 26493 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:41:52,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:41:52,151 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:41:52,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:41:57,691 INFO L130 PetriNetUnfolder]: 1855/5412 cut-off events. [2022-11-18 19:41:57,691 INFO L131 PetriNetUnfolder]: For 198166/198314 co-relation queries the response was YES. [2022-11-18 19:41:57,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42726 conditions, 5412 events. 1855/5412 cut-off events. For 198166/198314 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 48697 event pairs, 238 based on Foata normal form. 53/5418 useless extension candidates. Maximal degree in co-relation 42531. Up to 2070 conditions per place. [2022-11-18 19:41:57,803 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 765 selfloop transitions, 419 changer transitions 5/1292 dead transitions. [2022-11-18 19:41:57,803 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 567 places, 1292 transitions, 32946 flow [2022-11-18 19:41:57,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 19:41:57,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 19:41:57,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1381 transitions. [2022-11-18 19:41:57,805 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7237945492662474 [2022-11-18 19:41:57,805 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1381 transitions. [2022-11-18 19:41:57,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1381 transitions. [2022-11-18 19:41:57,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:41:57,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1381 transitions. [2022-11-18 19:41:57,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 76.72222222222223) internal successors, (1381), 18 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states 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 19:41:57,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states 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 19:41:57,810 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states 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 19:41:57,810 INFO L175 Difference]: Start difference. First operand has 550 places, 1069 transitions, 26493 flow. Second operand 18 states and 1381 transitions. [2022-11-18 19:41:57,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 567 places, 1292 transitions, 32946 flow [2022-11-18 19:41:59,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 1292 transitions, 32375 flow, removed 58 selfloop flow, removed 4 redundant places. [2022-11-18 19:42:00,023 INFO L231 Difference]: Finished difference. Result has 572 places, 1123 transitions, 29169 flow [2022-11-18 19:42:00,024 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=25993, PETRI_DIFFERENCE_MINUEND_PLACES=546, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=367, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=684, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=29169, PETRI_PLACES=572, PETRI_TRANSITIONS=1123} [2022-11-18 19:42:00,024 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 467 predicate places. [2022-11-18 19:42:00,024 INFO L495 AbstractCegarLoop]: Abstraction has has 572 places, 1123 transitions, 29169 flow [2022-11-18 19:42:00,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:42:00,024 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:42:00,025 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:42:00,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-18 19:42:00,025 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:42:00,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:00,025 INFO L85 PathProgramCache]: Analyzing trace with hash 647978635, now seen corresponding path program 9 times [2022-11-18 19:42:00,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:00,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133585758] [2022-11-18 19:42:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:00,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:01,635 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:42:01,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:01,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133585758] [2022-11-18 19:42:01,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133585758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:01,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:01,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:42:01,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25350908] [2022-11-18 19:42:01,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:01,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:42:01,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:01,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:42:01,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:42:01,638 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:42:01,639 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 1123 transitions, 29169 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states 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 19:42:01,639 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:42:01,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:42:01,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:42:06,927 INFO L130 PetriNetUnfolder]: 1847/5412 cut-off events. [2022-11-18 19:42:06,928 INFO L131 PetriNetUnfolder]: For 202894/203054 co-relation queries the response was YES. [2022-11-18 19:42:07,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43803 conditions, 5412 events. 1847/5412 cut-off events. For 202894/203054 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 48820 event pairs, 255 based on Foata normal form. 70/5436 useless extension candidates. Maximal degree in co-relation 43599. Up to 2070 conditions per place. [2022-11-18 19:42:07,066 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 762 selfloop transitions, 382 changer transitions 5/1252 dead transitions. [2022-11-18 19:42:07,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1252 transitions, 33047 flow [2022-11-18 19:42:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:42:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 19:42:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1002 transitions. [2022-11-18 19:42:07,068 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7271407837445574 [2022-11-18 19:42:07,068 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1002 transitions. [2022-11-18 19:42:07,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1002 transitions. [2022-11-18 19:42:07,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:42:07,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1002 transitions. [2022-11-18 19:42:07,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.07692307692308) internal successors, (1002), 13 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states 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 19:42:07,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:42:07,072 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 106.0) internal successors, (1484), 14 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states 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 19:42:07,072 INFO L175 Difference]: Start difference. First operand has 572 places, 1123 transitions, 29169 flow. Second operand 13 states and 1002 transitions. [2022-11-18 19:42:07,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 1252 transitions, 33047 flow [2022-11-18 19:42:09,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 1252 transitions, 32459 flow, removed 58 selfloop flow, removed 6 redundant places. [2022-11-18 19:42:09,301 INFO L231 Difference]: Finished difference. Result has 580 places, 1130 transitions, 29677 flow [2022-11-18 19:42:09,302 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=28581, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=377, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=745, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=29677, PETRI_PLACES=580, PETRI_TRANSITIONS=1130} [2022-11-18 19:42:09,302 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 475 predicate places. [2022-11-18 19:42:09,303 INFO L495 AbstractCegarLoop]: Abstraction has has 580 places, 1130 transitions, 29677 flow [2022-11-18 19:42:09,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states 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 19:42:09,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:42:09,303 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:42:09,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-18 19:42:09,304 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:42:09,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:09,304 INFO L85 PathProgramCache]: Analyzing trace with hash -991346151, now seen corresponding path program 10 times [2022-11-18 19:42:09,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:09,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771518130] [2022-11-18 19:42:09,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:09,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:42:11,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:11,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771518130] [2022-11-18 19:42:11,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771518130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:11,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:11,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:42:11,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744629662] [2022-11-18 19:42:11,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:11,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:42:11,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:11,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:42:11,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:42:11,681 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:42:11,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 1130 transitions, 29677 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:42:11,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:42:11,682 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:42:11,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:42:17,768 INFO L130 PetriNetUnfolder]: 1858/5422 cut-off events. [2022-11-18 19:42:17,769 INFO L131 PetriNetUnfolder]: For 211633/211779 co-relation queries the response was YES. [2022-11-18 19:42:17,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44621 conditions, 5422 events. 1858/5422 cut-off events. For 211633/211779 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 48865 event pairs, 236 based on Foata normal form. 54/5432 useless extension candidates. Maximal degree in co-relation 44415. Up to 2075 conditions per place. [2022-11-18 19:42:18,106 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 759 selfloop transitions, 426 changer transitions 5/1293 dead transitions. [2022-11-18 19:42:18,106 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 1293 transitions, 34331 flow [2022-11-18 19:42:18,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 19:42:18,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 19:42:18,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1362 transitions. [2022-11-18 19:42:18,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7138364779874213 [2022-11-18 19:42:18,110 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1362 transitions. [2022-11-18 19:42:18,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1362 transitions. [2022-11-18 19:42:18,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:42:18,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1362 transitions. [2022-11-18 19:42:18,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 75.66666666666667) internal successors, (1362), 18 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states 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 19:42:18,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states 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 19:42:18,116 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states 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 19:42:18,116 INFO L175 Difference]: Start difference. First operand has 580 places, 1130 transitions, 29677 flow. Second operand 18 states and 1362 transitions. [2022-11-18 19:42:18,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 1293 transitions, 34331 flow [2022-11-18 19:42:20,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 589 places, 1293 transitions, 33948 flow, removed 41 selfloop flow, removed 8 redundant places. [2022-11-18 19:42:20,222 INFO L231 Difference]: Finished difference. Result has 594 places, 1147 transitions, 30930 flow [2022-11-18 19:42:20,223 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=29313, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=409, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=713, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=30930, PETRI_PLACES=594, PETRI_TRANSITIONS=1147} [2022-11-18 19:42:20,223 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 489 predicate places. [2022-11-18 19:42:20,223 INFO L495 AbstractCegarLoop]: Abstraction has has 594 places, 1147 transitions, 30930 flow [2022-11-18 19:42:20,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:42:20,224 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:42:20,224 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:42:20,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-18 19:42:20,224 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:42:20,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:20,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1393457647, now seen corresponding path program 11 times [2022-11-18 19:42:20,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:20,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287009466] [2022-11-18 19:42:20,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:20,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:42:22,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:22,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287009466] [2022-11-18 19:42:22,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287009466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:22,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:22,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:42:22,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331226139] [2022-11-18 19:42:22,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:22,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:42:22,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:22,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:42:22,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:42:22,379 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:42:22,380 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 1147 transitions, 30930 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:42:22,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:42:22,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:42:22,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:42:28,986 INFO L130 PetriNetUnfolder]: 2012/5860 cut-off events. [2022-11-18 19:42:28,986 INFO L131 PetriNetUnfolder]: For 244032/244195 co-relation queries the response was YES. [2022-11-18 19:42:29,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49083 conditions, 5860 events. 2012/5860 cut-off events. For 244032/244195 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 53724 event pairs, 235 based on Foata normal form. 59/5872 useless extension candidates. Maximal degree in co-relation 48873. Up to 1932 conditions per place. [2022-11-18 19:42:29,290 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 804 selfloop transitions, 494 changer transitions 4/1405 dead transitions. [2022-11-18 19:42:29,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 1405 transitions, 38277 flow [2022-11-18 19:42:29,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 19:42:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 19:42:29,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1517 transitions. [2022-11-18 19:42:29,293 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.715566037735849 [2022-11-18 19:42:29,293 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1517 transitions. [2022-11-18 19:42:29,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1517 transitions. [2022-11-18 19:42:29,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:42:29,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1517 transitions. [2022-11-18 19:42:29,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 75.85) internal successors, (1517), 20 states have internal predecessors, (1517), 0 states have call successors, (0), 0 states 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 19:42:29,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states 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 19:42:29,305 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states 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 19:42:29,306 INFO L175 Difference]: Start difference. First operand has 594 places, 1147 transitions, 30930 flow. Second operand 20 states and 1517 transitions. [2022-11-18 19:42:29,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 613 places, 1405 transitions, 38277 flow [2022-11-18 19:42:31,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 604 places, 1405 transitions, 37483 flow, removed 51 selfloop flow, removed 9 redundant places. [2022-11-18 19:42:31,913 INFO L231 Difference]: Finished difference. Result has 616 places, 1225 transitions, 34110 flow [2022-11-18 19:42:31,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=30248, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=420, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=700, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=34110, PETRI_PLACES=616, PETRI_TRANSITIONS=1225} [2022-11-18 19:42:31,914 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 511 predicate places. [2022-11-18 19:42:31,914 INFO L495 AbstractCegarLoop]: Abstraction has has 616 places, 1225 transitions, 34110 flow [2022-11-18 19:42:31,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:42:31,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:42:31,914 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:42:31,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-18 19:42:31,914 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:42:31,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:31,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1708014443, now seen corresponding path program 12 times [2022-11-18 19:42:31,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:31,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165977142] [2022-11-18 19:42:31,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:31,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:42:34,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:34,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165977142] [2022-11-18 19:42:34,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165977142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:34,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:34,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:42:34,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233335371] [2022-11-18 19:42:34,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:34,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:42:34,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:34,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:42:34,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:42:34,165 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:42:34,166 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 1225 transitions, 34110 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:42:34,166 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:42:34,166 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:42:34,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:42:41,109 INFO L130 PetriNetUnfolder]: 2091/6057 cut-off events. [2022-11-18 19:42:41,110 INFO L131 PetriNetUnfolder]: For 271553/271716 co-relation queries the response was YES. [2022-11-18 19:42:41,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52449 conditions, 6057 events. 2091/6057 cut-off events. For 271553/271716 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 56015 event pairs, 248 based on Foata normal form. 57/6065 useless extension candidates. Maximal degree in co-relation 52227. Up to 1972 conditions per place. [2022-11-18 19:42:41,243 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 803 selfloop transitions, 539 changer transitions 4/1449 dead transitions. [2022-11-18 19:42:41,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 1449 transitions, 41123 flow [2022-11-18 19:42:41,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 19:42:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 19:42:41,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1512 transitions. [2022-11-18 19:42:41,246 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7132075471698113 [2022-11-18 19:42:41,246 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1512 transitions. [2022-11-18 19:42:41,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1512 transitions. [2022-11-18 19:42:41,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:42:41,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1512 transitions. [2022-11-18 19:42:41,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 75.6) internal successors, (1512), 20 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states 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 19:42:41,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states 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 19:42:41,252 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 106.0) internal successors, (2226), 21 states have internal predecessors, (2226), 0 states have call successors, (0), 0 states 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 19:42:41,252 INFO L175 Difference]: Start difference. First operand has 616 places, 1225 transitions, 34110 flow. Second operand 20 states and 1512 transitions. [2022-11-18 19:42:41,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 1449 transitions, 41123 flow [2022-11-18 19:42:44,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 1449 transitions, 40512 flow, removed 78 selfloop flow, removed 5 redundant places. [2022-11-18 19:42:44,428 INFO L231 Difference]: Finished difference. Result has 640 places, 1284 transitions, 37290 flow [2022-11-18 19:42:44,430 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=33551, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=483, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=721, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=37290, PETRI_PLACES=640, PETRI_TRANSITIONS=1284} [2022-11-18 19:42:44,430 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 535 predicate places. [2022-11-18 19:42:44,430 INFO L495 AbstractCegarLoop]: Abstraction has has 640 places, 1284 transitions, 37290 flow [2022-11-18 19:42:44,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:42:44,431 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:42:44,431 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:42:44,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-18 19:42:44,431 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:42:44,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:44,432 INFO L85 PathProgramCache]: Analyzing trace with hash 892851201, now seen corresponding path program 13 times [2022-11-18 19:42:44,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:44,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052069375] [2022-11-18 19:42:44,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:44,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:47,068 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:42:47,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:47,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052069375] [2022-11-18 19:42:47,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052069375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:47,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:47,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:42:47,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628410099] [2022-11-18 19:42:47,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:47,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:42:47,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:47,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:42:47,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:42:47,073 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:42:47,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 640 places, 1284 transitions, 37290 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:42:47,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:42:47,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:42:47,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:42:53,946 INFO L130 PetriNetUnfolder]: 2103/6075 cut-off events. [2022-11-18 19:42:53,946 INFO L131 PetriNetUnfolder]: For 294414/294579 co-relation queries the response was YES. [2022-11-18 19:42:54,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54178 conditions, 6075 events. 2103/6075 cut-off events. For 294414/294579 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 56308 event pairs, 262 based on Foata normal form. 58/6082 useless extension candidates. Maximal degree in co-relation 53946. Up to 1979 conditions per place. [2022-11-18 19:42:54,135 INFO L137 encePairwiseOnDemand]: 88/106 looper letters, 786 selfloop transitions, 558 changer transitions 4/1451 dead transitions. [2022-11-18 19:42:54,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 1451 transitions, 42553 flow [2022-11-18 19:42:54,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 19:42:54,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 19:42:54,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1368 transitions. [2022-11-18 19:42:54,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7169811320754716 [2022-11-18 19:42:54,139 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1368 transitions. [2022-11-18 19:42:54,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1368 transitions. [2022-11-18 19:42:54,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:42:54,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1368 transitions. [2022-11-18 19:42:54,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 76.0) internal successors, (1368), 18 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states 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 19:42:54,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states 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 19:42:54,145 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 106.0) internal successors, (2014), 19 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states 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 19:42:54,145 INFO L175 Difference]: Start difference. First operand has 640 places, 1284 transitions, 37290 flow. Second operand 18 states and 1368 transitions. [2022-11-18 19:42:54,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 657 places, 1451 transitions, 42553 flow [2022-11-18 19:42:57,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 649 places, 1451 transitions, 41731 flow, removed 74 selfloop flow, removed 8 redundant places. [2022-11-18 19:42:57,657 INFO L231 Difference]: Finished difference. Result has 655 places, 1305 transitions, 38536 flow [2022-11-18 19:42:57,659 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=36490, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=538, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=739, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=38536, PETRI_PLACES=655, PETRI_TRANSITIONS=1305} [2022-11-18 19:42:57,659 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 550 predicate places. [2022-11-18 19:42:57,659 INFO L495 AbstractCegarLoop]: Abstraction has has 655 places, 1305 transitions, 38536 flow [2022-11-18 19:42:57,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:42:57,660 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:42:57,660 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:42:57,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-18 19:42:57,661 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:42:57,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:42:57,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1432364191, now seen corresponding path program 14 times [2022-11-18 19:42:57,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:42:57,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108992228] [2022-11-18 19:42:57,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:42:57,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:42:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:42:59,474 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:42:59,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:42:59,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108992228] [2022-11-18 19:42:59,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108992228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:42:59,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:42:59,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 19:42:59,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572555153] [2022-11-18 19:42:59,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:42:59,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:42:59,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:42:59,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:42:59,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:42:59,477 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:42:59,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 1305 transitions, 38536 flow. Second operand has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states 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 19:42:59,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:42:59,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:42:59,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:05,823 INFO L130 PetriNetUnfolder]: 2120/6118 cut-off events. [2022-11-18 19:43:05,823 INFO L131 PetriNetUnfolder]: For 313137/313304 co-relation queries the response was YES. [2022-11-18 19:43:05,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55464 conditions, 6118 events. 2120/6118 cut-off events. For 313137/313304 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 56735 event pairs, 255 based on Foata normal form. 65/6134 useless extension candidates. Maximal degree in co-relation 55227. Up to 1991 conditions per place. [2022-11-18 19:43:06,023 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 830 selfloop transitions, 537 changer transitions 4/1474 dead transitions. [2022-11-18 19:43:06,023 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 1474 transitions, 44255 flow [2022-11-18 19:43:06,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:43:06,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 19:43:06,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1105 transitions. [2022-11-18 19:43:06,025 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7446091644204852 [2022-11-18 19:43:06,026 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1105 transitions. [2022-11-18 19:43:06,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1105 transitions. [2022-11-18 19:43:06,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:06,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1105 transitions. [2022-11-18 19:43:06,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 78.92857142857143) internal successors, (1105), 14 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states 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 19:43:06,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states 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 19:43:06,030 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states 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 19:43:06,030 INFO L175 Difference]: Start difference. First operand has 655 places, 1305 transitions, 38536 flow. Second operand 14 states and 1105 transitions. [2022-11-18 19:43:06,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 668 places, 1474 transitions, 44255 flow [2022-11-18 19:43:09,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 1474 transitions, 43334 flow, removed 98 selfloop flow, removed 8 redundant places. [2022-11-18 19:43:09,608 INFO L231 Difference]: Finished difference. Result has 663 places, 1331 transitions, 40081 flow [2022-11-18 19:43:09,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=37675, PETRI_DIFFERENCE_MINUEND_PLACES=647, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=514, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=785, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=40081, PETRI_PLACES=663, PETRI_TRANSITIONS=1331} [2022-11-18 19:43:09,609 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 558 predicate places. [2022-11-18 19:43:09,609 INFO L495 AbstractCegarLoop]: Abstraction has has 663 places, 1331 transitions, 40081 flow [2022-11-18 19:43:09,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.18181818181819) internal successors, (717), 11 states have internal predecessors, (717), 0 states have call successors, (0), 0 states 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 19:43:09,610 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:09,610 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:43:09,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-18 19:43:09,610 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:43:09,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:09,610 INFO L85 PathProgramCache]: Analyzing trace with hash 278366623, now seen corresponding path program 15 times [2022-11-18 19:43:09,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:09,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510754445] [2022-11-18 19:43:09,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:09,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:10,712 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:43:10,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:10,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510754445] [2022-11-18 19:43:10,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510754445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:10,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:10,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:43:10,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493894083] [2022-11-18 19:43:10,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:10,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:43:10,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:10,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:43:10,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:43:10,715 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:43:10,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 663 places, 1331 transitions, 40081 flow. Second operand has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states 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 19:43:10,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:10,717 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:43:10,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:16,764 INFO L130 PetriNetUnfolder]: 2159/6246 cut-off events. [2022-11-18 19:43:16,764 INFO L131 PetriNetUnfolder]: For 323498/323690 co-relation queries the response was YES. [2022-11-18 19:43:16,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56634 conditions, 6246 events. 2159/6246 cut-off events. For 323498/323690 co-relation queries the response was YES. Maximal size of possible extension queue 338. Compared 57942 event pairs, 335 based on Foata normal form. 74/6267 useless extension candidates. Maximal degree in co-relation 56394. Up to 2413 conditions per place. [2022-11-18 19:43:16,966 INFO L137 encePairwiseOnDemand]: 90/106 looper letters, 952 selfloop transitions, 437 changer transitions 17/1509 dead transitions. [2022-11-18 19:43:16,966 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 674 places, 1509 transitions, 45234 flow [2022-11-18 19:43:16,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:43:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-18 19:43:16,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 953 transitions. [2022-11-18 19:43:16,968 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7492138364779874 [2022-11-18 19:43:16,968 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 953 transitions. [2022-11-18 19:43:16,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 953 transitions. [2022-11-18 19:43:16,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:16,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 953 transitions. [2022-11-18 19:43:16,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 79.41666666666667) internal successors, (953), 12 states have internal predecessors, (953), 0 states have call successors, (0), 0 states 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 19:43:16,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:43:16,973 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 106.0) internal successors, (1378), 13 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 19:43:16,974 INFO L175 Difference]: Start difference. First operand has 663 places, 1331 transitions, 40081 flow. Second operand 12 states and 953 transitions. [2022-11-18 19:43:16,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 674 places, 1509 transitions, 45234 flow [2022-11-18 19:43:20,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 667 places, 1509 transitions, 44387 flow, removed 54 selfloop flow, removed 7 redundant places. [2022-11-18 19:43:20,679 INFO L231 Difference]: Finished difference. Result has 672 places, 1366 transitions, 41574 flow [2022-11-18 19:43:20,680 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=39278, PETRI_DIFFERENCE_MINUEND_PLACES=656, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=407, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=900, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=41574, PETRI_PLACES=672, PETRI_TRANSITIONS=1366} [2022-11-18 19:43:20,681 INFO L288 CegarLoopForPetriNet]: 105 programPoint places, 567 predicate places. [2022-11-18 19:43:20,681 INFO L495 AbstractCegarLoop]: Abstraction has has 672 places, 1366 transitions, 41574 flow [2022-11-18 19:43:20,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.4) internal successors, (654), 10 states have internal predecessors, (654), 0 states have call successors, (0), 0 states 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 19:43:20,682 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:43:20,682 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-11-18 19:43:20,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-18 19:43:20,682 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-18 19:43:20,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:20,683 INFO L85 PathProgramCache]: Analyzing trace with hash -608344491, now seen corresponding path program 16 times [2022-11-18 19:43:20,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:43:20,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408975948] [2022-11-18 19:43:20,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:43:20,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:43:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:43:23,246 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-11-18 19:43:23,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:43:23,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408975948] [2022-11-18 19:43:23,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408975948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:43:23,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:43:23,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 19:43:23,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848754498] [2022-11-18 19:43:23,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:43:23,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:43:23,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:43:23,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:43:23,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:43:23,249 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 106 [2022-11-18 19:43:23,250 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 672 places, 1366 transitions, 41574 flow. Second operand has 12 states, 12 states have (on average 65.0) internal successors, (780), 12 states have internal predecessors, (780), 0 states have call successors, (0), 0 states 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 19:43:23,250 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:43:23,250 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 106 [2022-11-18 19:43:23,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:43:30,906 INFO L130 PetriNetUnfolder]: 2282/6563 cut-off events. [2022-11-18 19:43:30,906 INFO L131 PetriNetUnfolder]: For 362566/362761 co-relation queries the response was YES. [2022-11-18 19:43:31,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60480 conditions, 6563 events. 2282/6563 cut-off events. For 362566/362761 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 61508 event pairs, 308 based on Foata normal form. 75/6585 useless extension candidates. Maximal degree in co-relation 60236. Up to 1737 conditions per place. [2022-11-18 19:43:31,103 INFO L137 encePairwiseOnDemand]: 87/106 looper letters, 943 selfloop transitions, 566 changer transitions 7/1619 dead transitions. [2022-11-18 19:43:31,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 685 places, 1619 transitions, 49135 flow [2022-11-18 19:43:31,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:43:31,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 19:43:31,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1128 transitions. [2022-11-18 19:43:31,106 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7601078167115903 [2022-11-18 19:43:31,106 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1128 transitions. [2022-11-18 19:43:31,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1128 transitions. [2022-11-18 19:43:31,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:43:31,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1128 transitions. [2022-11-18 19:43:31,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 80.57142857142857) internal successors, (1128), 14 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states 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 19:43:31,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states 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 19:43:31,111 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 106.0) internal successors, (1590), 15 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states 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 19:43:31,111 INFO L175 Difference]: Start difference. First operand has 672 places, 1366 transitions, 41574 flow. Second operand 14 states and 1128 transitions. [2022-11-18 19:43:31,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 685 places, 1619 transitions, 49135 flow