./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- 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-4e7fbc6 [2022-11-23 03:38:40,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:38:40,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:38:40,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:38:40,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:38:40,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:38:40,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:38:40,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:38:40,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:38:40,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:38:40,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:38:40,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:38:40,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:38:40,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:38:40,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:38:40,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:38:40,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:38:40,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:38:40,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:38:40,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:38:40,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:38:40,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:38:40,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:38:40,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:38:40,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:38:40,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:38:40,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:38:40,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:38:40,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:38:40,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:38:40,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:38:40,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:38:40,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:38:40,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:38:40,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:38:40,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:38:40,392 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:38:40,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:38:40,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:38:40,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:38:40,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:38:40,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:38:40,442 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:38:40,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:38:40,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:38:40,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:38:40,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:38:40,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:38:40,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:38:40,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:38:40,446 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:38:40,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:38:40,448 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:38:40,448 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:38:40,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:38:40,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:38:40,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:38:40,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:38:40,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:38:40,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:38:40,450 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:38:40,450 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:38:40,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:38:40,451 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:38:40,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:38:40,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:38:40,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:38:40,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:38:40,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:38:40,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:38:40,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:38:40,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:38:40,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:38:40,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:38:40,454 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:38:40,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:38:40,454 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:38:40,455 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:38:40,455 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-23 03:38:40,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:38:40,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:38:40,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:38:40,800 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:38:40,800 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:38:40,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-23 03:38:43,952 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:38:44,312 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:38:44,313 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-23 03:38:44,336 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/data/d24729344/2f4bdc793c9546dd895fc374d8b27623/FLAG6d947af89 [2022-11-23 03:38:44,392 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/data/d24729344/2f4bdc793c9546dd895fc374d8b27623 [2022-11-23 03:38:44,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:38:44,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:38:44,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:38:44,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:38:44,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:38:44,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:44" (1/1) ... [2022-11-23 03:38:44,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@754454db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:44, skipping insertion in model container [2022-11-23 03:38:44,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:44" (1/1) ... [2022-11-23 03:38:44,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:38:44,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:38:44,723 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:38:45,265 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-23 03:38:45,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:38:45,313 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:38:45,326 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:38:45,356 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-23 03:38:45,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:38:45,480 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:38:45,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45 WrapperNode [2022-11-23 03:38:45,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:38:45,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:38:45,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:38:45,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:38:45,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (1/1) ... [2022-11-23 03:38:45,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (1/1) ... [2022-11-23 03:38:45,562 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 143 [2022-11-23 03:38:45,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:38:45,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:38:45,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:38:45,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:38:45,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (1/1) ... [2022-11-23 03:38:45,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (1/1) ... [2022-11-23 03:38:45,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (1/1) ... [2022-11-23 03:38:45,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (1/1) ... [2022-11-23 03:38:45,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (1/1) ... [2022-11-23 03:38:45,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (1/1) ... [2022-11-23 03:38:45,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (1/1) ... [2022-11-23 03:38:45,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (1/1) ... [2022-11-23 03:38:45,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:38:45,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:38:45,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:38:45,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:38:45,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (1/1) ... [2022-11-23 03:38:45,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:38:45,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:38:45,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:38:45,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:38:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 03:38:45,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:38:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 03:38:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:38:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 03:38:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:38:45,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 03:38:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:38:45,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:38:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-23 03:38:45,696 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-23 03:38:45,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:38:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:38:45,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:38:45,698 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:38:46,127 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:38:46,130 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:38:46,472 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:38:46,523 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:38:46,523 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:38:46,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:46 BoogieIcfgContainer [2022-11-23 03:38:46,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:38:46,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:38:46,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:38:46,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:38:46,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:38:44" (1/3) ... [2022-11-23 03:38:46,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36256b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:38:46, skipping insertion in model container [2022-11-23 03:38:46,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:45" (2/3) ... [2022-11-23 03:38:46,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36256b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:38:46, skipping insertion in model container [2022-11-23 03:38:46,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:46" (3/3) ... [2022-11-23 03:38:46,536 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-23 03:38:46,545 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:38:46,556 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:38:46,557 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 03:38:46,557 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:38:46,622 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-23 03:38:46,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 173 places, 173 transitions, 362 flow [2022-11-23 03:38:46,785 INFO L130 PetriNetUnfolder]: 8/216 cut-off events. [2022-11-23 03:38:46,785 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-23 03:38:46,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 216 events. 8/216 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 366 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-11-23 03:38:46,797 INFO L82 GeneralOperation]: Start removeDead. Operand has 173 places, 173 transitions, 362 flow [2022-11-23 03:38:46,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 139 transitions, 287 flow [2022-11-23 03:38:46,809 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:38:46,842 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 144 places, 139 transitions, 287 flow [2022-11-23 03:38:46,852 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 144 places, 139 transitions, 287 flow [2022-11-23 03:38:46,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 139 transitions, 287 flow [2022-11-23 03:38:46,892 INFO L130 PetriNetUnfolder]: 2/139 cut-off events. [2022-11-23 03:38:46,892 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-23 03:38:46,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 139 events. 2/139 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2022-11-23 03:38:46,896 INFO L119 LiptonReduction]: Number of co-enabled transitions 3780 [2022-11-23 03:39:50,766 INFO L134 LiptonReduction]: Checked pairs total: 10044 [2022-11-23 03:39:50,766 INFO L136 LiptonReduction]: Total number of compositions: 132 [2022-11-23 03:39:50,791 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:39:50,800 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;@7337ba0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:39:50,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 03:39:50,807 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-11-23 03:39:50,807 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:39:50,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:39:50,808 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:39:50,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:39:50,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:39:50,816 INFO L85 PathProgramCache]: Analyzing trace with hash 576255560, now seen corresponding path program 1 times [2022-11-23 03:39:50,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:39:50,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105203580] [2022-11-23 03:39:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:39:50,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:39:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:39:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:39:52,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:39:52,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105203580] [2022-11-23 03:39:52,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105203580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:39:52,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:39:52,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:39:52,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550859291] [2022-11-23 03:39:52,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:39:52,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:39:52,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:39:52,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:39:52,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:39:52,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 305 [2022-11-23 03:39:52,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:52,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:39:52,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 305 [2022-11-23 03:39:52,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:39:53,049 INFO L130 PetriNetUnfolder]: 215/414 cut-off events. [2022-11-23 03:39:53,050 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-23 03:39:53,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 414 events. 215/414 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1514 event pairs, 210 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 696. Up to 402 conditions per place. [2022-11-23 03:39:53,055 INFO L137 encePairwiseOnDemand]: 296/305 looper letters, 24 selfloop transitions, 8 changer transitions 0/33 dead transitions. [2022-11-23 03:39:53,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 139 flow [2022-11-23 03:39:53,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:39:53,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:39:53,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 869 transitions. [2022-11-23 03:39:53,088 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4748633879781421 [2022-11-23 03:39:53,090 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 869 transitions. [2022-11-23 03:39:53,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 869 transitions. [2022-11-23 03:39:53,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:39:53,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 869 transitions. [2022-11-23 03:39:53,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.83333333333334) internal successors, (869), 6 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:53,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:53,117 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:53,119 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 63 flow. Second operand 6 states and 869 transitions. [2022-11-23 03:39:53,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 139 flow [2022-11-23 03:39:53,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-23 03:39:53,126 INFO L231 Difference]: Finished difference. Result has 38 places, 32 transitions, 105 flow [2022-11-23 03:39:53,128 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=105, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2022-11-23 03:39:53,132 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 4 predicate places. [2022-11-23 03:39:53,132 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 105 flow [2022-11-23 03:39:53,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:53,133 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:39:53,134 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:39:53,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:39:53,134 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:39:53,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:39:53,135 INFO L85 PathProgramCache]: Analyzing trace with hash 684193049, now seen corresponding path program 1 times [2022-11-23 03:39:53,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:39:53,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088232451] [2022-11-23 03:39:53,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:39:53,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:39:53,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:39:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:39:53,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:39:53,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088232451] [2022-11-23 03:39:53,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088232451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:39:53,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:39:53,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:39:53,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419256049] [2022-11-23 03:39:53,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:39:53,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:39:53,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:39:53,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:39:53,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:39:54,281 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 305 [2022-11-23 03:39:54,282 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:54,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:39:54,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 305 [2022-11-23 03:39:54,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:39:54,640 INFO L130 PetriNetUnfolder]: 236/450 cut-off events. [2022-11-23 03:39:54,641 INFO L131 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2022-11-23 03:39:54,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 450 events. 236/450 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1709 event pairs, 70 based on Foata normal form. 5/394 useless extension candidates. Maximal degree in co-relation 833. Up to 396 conditions per place. [2022-11-23 03:39:54,650 INFO L137 encePairwiseOnDemand]: 296/305 looper letters, 34 selfloop transitions, 14 changer transitions 0/49 dead transitions. [2022-11-23 03:39:54,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 249 flow [2022-11-23 03:39:54,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:39:54,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:39:54,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 875 transitions. [2022-11-23 03:39:54,654 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4781420765027322 [2022-11-23 03:39:54,655 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 875 transitions. [2022-11-23 03:39:54,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 875 transitions. [2022-11-23 03:39:54,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:39:54,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 875 transitions. [2022-11-23 03:39:54,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.83333333333334) internal successors, (875), 6 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:54,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:54,666 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:54,667 INFO L175 Difference]: Start difference. First operand has 38 places, 32 transitions, 105 flow. Second operand 6 states and 875 transitions. [2022-11-23 03:39:54,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 249 flow [2022-11-23 03:39:54,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 247 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:39:54,673 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 177 flow [2022-11-23 03:39:54,674 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=177, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2022-11-23 03:39:54,675 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 10 predicate places. [2022-11-23 03:39:54,675 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 177 flow [2022-11-23 03:39:54,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:54,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:39:54,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:39:54,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:39:54,678 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:39:54,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:39:54,682 INFO L85 PathProgramCache]: Analyzing trace with hash 684106559, now seen corresponding path program 2 times [2022-11-23 03:39:54,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:39:54,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218081884] [2022-11-23 03:39:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:39:54,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:39:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:39:55,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:39:55,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:39:55,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218081884] [2022-11-23 03:39:55,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218081884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:39:55,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:39:55,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:39:55,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120584013] [2022-11-23 03:39:55,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:39:55,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:39:55,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:39:55,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:39:55,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:39:55,685 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 305 [2022-11-23 03:39:55,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 177 flow. Second operand has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:55,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:39:55,687 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 305 [2022-11-23 03:39:55,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:39:56,029 INFO L130 PetriNetUnfolder]: 222/426 cut-off events. [2022-11-23 03:39:56,030 INFO L131 PetriNetUnfolder]: For 208/208 co-relation queries the response was YES. [2022-11-23 03:39:56,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 426 events. 222/426 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1591 event pairs, 70 based on Foata normal form. 5/375 useless extension candidates. Maximal degree in co-relation 853. Up to 350 conditions per place. [2022-11-23 03:39:56,036 INFO L137 encePairwiseOnDemand]: 297/305 looper letters, 36 selfloop transitions, 15 changer transitions 0/52 dead transitions. [2022-11-23 03:39:56,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 52 transitions, 320 flow [2022-11-23 03:39:56,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:39:56,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:39:56,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 874 transitions. [2022-11-23 03:39:56,040 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47759562841530057 [2022-11-23 03:39:56,040 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 874 transitions. [2022-11-23 03:39:56,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 874 transitions. [2022-11-23 03:39:56,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:39:56,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 874 transitions. [2022-11-23 03:39:56,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.66666666666666) internal successors, (874), 6 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) [2022-11-23 03:39:56,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:56,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:56,051 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 177 flow. Second operand 6 states and 874 transitions. [2022-11-23 03:39:56,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 52 transitions, 320 flow [2022-11-23 03:39:56,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 52 transitions, 304 flow, removed 7 selfloop flow, removed 1 redundant places. [2022-11-23 03:39:56,060 INFO L231 Difference]: Finished difference. Result has 49 places, 42 transitions, 222 flow [2022-11-23 03:39:56,060 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=222, PETRI_PLACES=49, PETRI_TRANSITIONS=42} [2022-11-23 03:39:56,063 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 15 predicate places. [2022-11-23 03:39:56,063 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 42 transitions, 222 flow [2022-11-23 03:39:56,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:56,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:39:56,065 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:39:56,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:39:56,066 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:39:56,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:39:56,068 INFO L85 PathProgramCache]: Analyzing trace with hash -267839588, now seen corresponding path program 1 times [2022-11-23 03:39:56,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:39:56,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995519628] [2022-11-23 03:39:56,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:39:56,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:39:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:39:56,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:39:56,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:39:56,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995519628] [2022-11-23 03:39:56,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995519628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:39:56,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:39:56,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:39:56,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790969609] [2022-11-23 03:39:56,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:39:56,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:39:56,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:39:56,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:39:56,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:39:57,141 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 305 [2022-11-23 03:39:57,142 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 42 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:57,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:39:57,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 305 [2022-11-23 03:39:57,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:39:57,478 INFO L130 PetriNetUnfolder]: 210/406 cut-off events. [2022-11-23 03:39:57,479 INFO L131 PetriNetUnfolder]: For 268/268 co-relation queries the response was YES. [2022-11-23 03:39:57,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 406 events. 210/406 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1461 event pairs, 80 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 912. Up to 356 conditions per place. [2022-11-23 03:39:57,483 INFO L137 encePairwiseOnDemand]: 297/305 looper letters, 41 selfloop transitions, 15 changer transitions 0/57 dead transitions. [2022-11-23 03:39:57,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 57 transitions, 412 flow [2022-11-23 03:39:57,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:39:57,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:39:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 872 transitions. [2022-11-23 03:39:57,489 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47650273224043715 [2022-11-23 03:39:57,490 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 872 transitions. [2022-11-23 03:39:57,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 872 transitions. [2022-11-23 03:39:57,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:39:57,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 872 transitions. [2022-11-23 03:39:57,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:57,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:57,501 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 305.0) internal successors, (2135), 7 states have internal predecessors, (2135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:57,501 INFO L175 Difference]: Start difference. First operand has 49 places, 42 transitions, 222 flow. Second operand 6 states and 872 transitions. [2022-11-23 03:39:57,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 57 transitions, 412 flow [2022-11-23 03:39:57,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 57 transitions, 395 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-11-23 03:39:57,510 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 309 flow [2022-11-23 03:39:57,510 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=309, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2022-11-23 03:39:57,512 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 21 predicate places. [2022-11-23 03:39:57,513 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 309 flow [2022-11-23 03:39:57,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:57,513 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:39:57,514 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:39:57,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:39:57,514 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:39:57,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:39:57,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1163707495, now seen corresponding path program 1 times [2022-11-23 03:39:57,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:39:57,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496746662] [2022-11-23 03:39:57,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:39:57,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:39:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:39:58,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:39:58,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:39:58,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496746662] [2022-11-23 03:39:58,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496746662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:39:58,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:39:58,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:39:58,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436105263] [2022-11-23 03:39:58,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:39:58,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:39:58,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:39:58,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:39:58,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:39:58,170 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 305 [2022-11-23 03:39:58,171 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 309 flow. Second operand has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:58,172 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:39:58,172 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 305 [2022-11-23 03:39:58,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:39:58,504 INFO L130 PetriNetUnfolder]: 198/406 cut-off events. [2022-11-23 03:39:58,504 INFO L131 PetriNetUnfolder]: For 288/288 co-relation queries the response was YES. [2022-11-23 03:39:58,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1174 conditions, 406 events. 198/406 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1611 event pairs, 65 based on Foata normal form. 14/388 useless extension candidates. Maximal degree in co-relation 1037. Up to 197 conditions per place. [2022-11-23 03:39:58,508 INFO L137 encePairwiseOnDemand]: 299/305 looper letters, 57 selfloop transitions, 9 changer transitions 4/72 dead transitions. [2022-11-23 03:39:58,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 536 flow [2022-11-23 03:39:58,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:39:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 03:39:58,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 771 transitions. [2022-11-23 03:39:58,512 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5055737704918033 [2022-11-23 03:39:58,513 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 771 transitions. [2022-11-23 03:39:58,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 771 transitions. [2022-11-23 03:39:58,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:39:58,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 771 transitions. [2022-11-23 03:39:58,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.2) internal successors, (771), 5 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:58,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:58,520 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:58,520 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 309 flow. Second operand 5 states and 771 transitions. [2022-11-23 03:39:58,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 536 flow [2022-11-23 03:39:58,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 72 transitions, 517 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-11-23 03:39:58,527 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 325 flow [2022-11-23 03:39:58,527 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=325, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2022-11-23 03:39:58,530 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 26 predicate places. [2022-11-23 03:39:58,531 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 325 flow [2022-11-23 03:39:58,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:58,534 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:39:58,534 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:39:58,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 03:39:58,535 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:39:58,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:39:58,535 INFO L85 PathProgramCache]: Analyzing trace with hash 307073001, now seen corresponding path program 2 times [2022-11-23 03:39:58,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:39:58,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655650217] [2022-11-23 03:39:58,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:39:58,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:39:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:39:59,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:39:59,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:39:59,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655650217] [2022-11-23 03:39:59,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655650217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:39:59,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:39:59,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:39:59,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270358198] [2022-11-23 03:39:59,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:39:59,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:39:59,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:39:59,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:39:59,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:39:59,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 305 [2022-11-23 03:39:59,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 325 flow. Second operand has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:59,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:39:59,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 305 [2022-11-23 03:39:59,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:39:59,514 INFO L130 PetriNetUnfolder]: 224/482 cut-off events. [2022-11-23 03:39:59,514 INFO L131 PetriNetUnfolder]: For 429/429 co-relation queries the response was YES. [2022-11-23 03:39:59,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 482 events. 224/482 cut-off events. For 429/429 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2102 event pairs, 77 based on Foata normal form. 8/452 useless extension candidates. Maximal degree in co-relation 1287. Up to 234 conditions per place. [2022-11-23 03:39:59,518 INFO L137 encePairwiseOnDemand]: 299/305 looper letters, 59 selfloop transitions, 10 changer transitions 4/75 dead transitions. [2022-11-23 03:39:59,518 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 75 transitions, 576 flow [2022-11-23 03:39:59,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:39:59,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 03:39:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 773 transitions. [2022-11-23 03:39:59,521 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5068852459016393 [2022-11-23 03:39:59,521 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 773 transitions. [2022-11-23 03:39:59,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 773 transitions. [2022-11-23 03:39:59,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:39:59,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 773 transitions. [2022-11-23 03:39:59,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 154.6) internal successors, (773), 5 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:59,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:59,539 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:59,539 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 325 flow. Second operand 5 states and 773 transitions. [2022-11-23 03:39:59,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 75 transitions, 576 flow [2022-11-23 03:39:59,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 75 transitions, 565 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:39:59,544 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 352 flow [2022-11-23 03:39:59,544 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=352, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2022-11-23 03:39:59,547 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 29 predicate places. [2022-11-23 03:39:59,547 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 352 flow [2022-11-23 03:39:59,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:59,552 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:39:59,552 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:39:59,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:39:59,553 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:39:59,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:39:59,553 INFO L85 PathProgramCache]: Analyzing trace with hash 305285541, now seen corresponding path program 3 times [2022-11-23 03:39:59,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:39:59,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525617771] [2022-11-23 03:39:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:39:59,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:39:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:39:59,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:39:59,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:39:59,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525617771] [2022-11-23 03:39:59,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525617771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:39:59,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:39:59,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:39:59,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915775370] [2022-11-23 03:39:59,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:39:59,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:39:59,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:39:59,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:39:59,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:39:59,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 305 [2022-11-23 03:39:59,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 352 flow. Second operand has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:39:59,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:39:59,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 305 [2022-11-23 03:39:59,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:00,197 INFO L130 PetriNetUnfolder]: 80/212 cut-off events. [2022-11-23 03:40:00,198 INFO L131 PetriNetUnfolder]: For 396/396 co-relation queries the response was YES. [2022-11-23 03:40:00,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 212 events. 80/212 cut-off events. For 396/396 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 751 event pairs, 53 based on Foata normal form. 8/210 useless extension candidates. Maximal degree in co-relation 571. Up to 147 conditions per place. [2022-11-23 03:40:00,200 INFO L137 encePairwiseOnDemand]: 300/305 looper letters, 43 selfloop transitions, 8 changer transitions 2/55 dead transitions. [2022-11-23 03:40:00,200 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 55 transitions, 475 flow [2022-11-23 03:40:00,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:40:00,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 03:40:00,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 760 transitions. [2022-11-23 03:40:00,203 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49836065573770494 [2022-11-23 03:40:00,203 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 760 transitions. [2022-11-23 03:40:00,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 760 transitions. [2022-11-23 03:40:00,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:00,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 760 transitions. [2022-11-23 03:40:00,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 152.0) internal successors, (760), 5 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:00,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:00,209 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 305.0) internal successors, (1830), 6 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:00,209 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 352 flow. Second operand 5 states and 760 transitions. [2022-11-23 03:40:00,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 55 transitions, 475 flow [2022-11-23 03:40:00,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 55 transitions, 449 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-11-23 03:40:00,213 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 329 flow [2022-11-23 03:40:00,214 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=329, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2022-11-23 03:40:00,214 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 31 predicate places. [2022-11-23 03:40:00,214 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 329 flow [2022-11-23 03:40:00,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.8) internal successors, (734), 5 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:00,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:00,215 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:00,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:40:00,216 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:00,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:00,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1027439110, now seen corresponding path program 1 times [2022-11-23 03:40:00,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:00,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337765509] [2022-11-23 03:40:00,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:00,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:01,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:01,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:01,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337765509] [2022-11-23 03:40:01,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337765509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:01,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:01,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:01,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191713422] [2022-11-23 03:40:01,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:01,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:40:01,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:01,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:40:01,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:40:02,016 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 305 [2022-11-23 03:40:02,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 329 flow. Second operand has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:02,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:02,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 305 [2022-11-23 03:40:02,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:02,969 INFO L130 PetriNetUnfolder]: 102/283 cut-off events. [2022-11-23 03:40:02,969 INFO L131 PetriNetUnfolder]: For 497/497 co-relation queries the response was YES. [2022-11-23 03:40:02,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 895 conditions, 283 events. 102/283 cut-off events. For 497/497 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1184 event pairs, 31 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 734. Up to 121 conditions per place. [2022-11-23 03:40:02,972 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 63 selfloop transitions, 22 changer transitions 3/89 dead transitions. [2022-11-23 03:40:02,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 661 flow [2022-11-23 03:40:02,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:40:02,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-23 03:40:02,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1670 transitions. [2022-11-23 03:40:02,979 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4562841530054645 [2022-11-23 03:40:02,979 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1670 transitions. [2022-11-23 03:40:02,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1670 transitions. [2022-11-23 03:40:02,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:02,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1670 transitions. [2022-11-23 03:40:02,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 139.16666666666666) internal successors, (1670), 12 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:02,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:02,995 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:02,995 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 329 flow. Second operand 12 states and 1670 transitions. [2022-11-23 03:40:02,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 661 flow [2022-11-23 03:40:02,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 89 transitions, 650 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-11-23 03:40:03,001 INFO L231 Difference]: Finished difference. Result has 78 places, 58 transitions, 461 flow [2022-11-23 03:40:03,002 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=461, PETRI_PLACES=78, PETRI_TRANSITIONS=58} [2022-11-23 03:40:03,003 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 44 predicate places. [2022-11-23 03:40:03,003 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 58 transitions, 461 flow [2022-11-23 03:40:03,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:03,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:03,005 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:03,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:40:03,005 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:03,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:03,006 INFO L85 PathProgramCache]: Analyzing trace with hash 322317422, now seen corresponding path program 2 times [2022-11-23 03:40:03,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:03,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561849570] [2022-11-23 03:40:03,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:03,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:03,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:03,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:03,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561849570] [2022-11-23 03:40:03,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561849570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:03,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:03,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:03,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64398092] [2022-11-23 03:40:03,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:03,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:40:03,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:03,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:40:03,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:40:04,558 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-23 03:40:04,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 58 transitions, 461 flow. Second operand has 10 states, 10 states have (on average 136.2) internal successors, (1362), 10 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) [2022-11-23 03:40:04,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:04,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-23 03:40:04,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:05,553 INFO L130 PetriNetUnfolder]: 132/369 cut-off events. [2022-11-23 03:40:05,554 INFO L131 PetriNetUnfolder]: For 860/860 co-relation queries the response was YES. [2022-11-23 03:40:05,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1254 conditions, 369 events. 132/369 cut-off events. For 860/860 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1752 event pairs, 63 based on Foata normal form. 3/370 useless extension candidates. Maximal degree in co-relation 956. Up to 187 conditions per place. [2022-11-23 03:40:05,571 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 71 selfloop transitions, 23 changer transitions 3/98 dead transitions. [2022-11-23 03:40:05,571 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 98 transitions, 803 flow [2022-11-23 03:40:05,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:40:05,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-23 03:40:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1693 transitions. [2022-11-23 03:40:05,579 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46256830601092896 [2022-11-23 03:40:05,580 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1693 transitions. [2022-11-23 03:40:05,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1693 transitions. [2022-11-23 03:40:05,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:05,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1693 transitions. [2022-11-23 03:40:05,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 141.08333333333334) internal successors, (1693), 12 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:05,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:05,595 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:05,595 INFO L175 Difference]: Start difference. First operand has 78 places, 58 transitions, 461 flow. Second operand 12 states and 1693 transitions. [2022-11-23 03:40:05,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 98 transitions, 803 flow [2022-11-23 03:40:05,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 98 transitions, 786 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-11-23 03:40:05,604 INFO L231 Difference]: Finished difference. Result has 92 places, 67 transitions, 587 flow [2022-11-23 03:40:05,605 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=587, PETRI_PLACES=92, PETRI_TRANSITIONS=67} [2022-11-23 03:40:05,606 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 58 predicate places. [2022-11-23 03:40:05,607 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 67 transitions, 587 flow [2022-11-23 03:40:05,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.2) internal successors, (1362), 10 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) [2022-11-23 03:40:05,610 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:05,610 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:05,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 03:40:05,610 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:05,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:05,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1565294687, now seen corresponding path program 1 times [2022-11-23 03:40:05,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:05,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694773535] [2022-11-23 03:40:05,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:05,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:06,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:06,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:06,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694773535] [2022-11-23 03:40:06,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694773535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:06,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:06,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:06,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597434699] [2022-11-23 03:40:06,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:06,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:40:06,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:06,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:40:06,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:40:07,589 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-23 03:40:07,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 67 transitions, 587 flow. Second operand has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 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) [2022-11-23 03:40:07,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:07,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-23 03:40:07,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:08,641 INFO L130 PetriNetUnfolder]: 127/371 cut-off events. [2022-11-23 03:40:08,642 INFO L131 PetriNetUnfolder]: For 1225/1225 co-relation queries the response was YES. [2022-11-23 03:40:08,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 371 events. 127/371 cut-off events. For 1225/1225 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1810 event pairs, 47 based on Foata normal form. 3/374 useless extension candidates. Maximal degree in co-relation 1166. Up to 197 conditions per place. [2022-11-23 03:40:08,647 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 65 selfloop transitions, 30 changer transitions 4/100 dead transitions. [2022-11-23 03:40:08,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 100 transitions, 874 flow [2022-11-23 03:40:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 03:40:08,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-23 03:40:08,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2240 transitions. [2022-11-23 03:40:08,655 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45901639344262296 [2022-11-23 03:40:08,655 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2240 transitions. [2022-11-23 03:40:08,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2240 transitions. [2022-11-23 03:40:08,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:08,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2240 transitions. [2022-11-23 03:40:08,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 140.0) internal successors, (2240), 16 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:08,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 305.0) internal successors, (5185), 17 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:08,673 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 305.0) internal successors, (5185), 17 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:08,673 INFO L175 Difference]: Start difference. First operand has 92 places, 67 transitions, 587 flow. Second operand 16 states and 2240 transitions. [2022-11-23 03:40:08,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 100 transitions, 874 flow [2022-11-23 03:40:08,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 100 transitions, 833 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-11-23 03:40:08,684 INFO L231 Difference]: Finished difference. Result has 105 places, 71 transitions, 630 flow [2022-11-23 03:40:08,684 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=630, PETRI_PLACES=105, PETRI_TRANSITIONS=71} [2022-11-23 03:40:08,685 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 71 predicate places. [2022-11-23 03:40:08,685 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 71 transitions, 630 flow [2022-11-23 03:40:08,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 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) [2022-11-23 03:40:08,687 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:08,687 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:08,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 03:40:08,687 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:08,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash -438689532, now seen corresponding path program 1 times [2022-11-23 03:40:08,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:08,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167593619] [2022-11-23 03:40:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:08,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:09,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:09,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:09,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167593619] [2022-11-23 03:40:09,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167593619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:09,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:09,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:09,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311516080] [2022-11-23 03:40:09,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:09,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:40:09,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:09,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:40:09,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:40:10,605 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 305 [2022-11-23 03:40:10,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 71 transitions, 630 flow. Second operand has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:10,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:10,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 305 [2022-11-23 03:40:10,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:11,244 INFO L130 PetriNetUnfolder]: 126/371 cut-off events. [2022-11-23 03:40:11,245 INFO L131 PetriNetUnfolder]: For 1342/1342 co-relation queries the response was YES. [2022-11-23 03:40:11,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1471 conditions, 371 events. 126/371 cut-off events. For 1342/1342 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1807 event pairs, 77 based on Foata normal form. 2/373 useless extension candidates. Maximal degree in co-relation 1295. Up to 307 conditions per place. [2022-11-23 03:40:11,249 INFO L137 encePairwiseOnDemand]: 296/305 looper letters, 60 selfloop transitions, 14 changer transitions 2/77 dead transitions. [2022-11-23 03:40:11,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 77 transitions, 794 flow [2022-11-23 03:40:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:40:11,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-23 03:40:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1237 transitions. [2022-11-23 03:40:11,254 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4506375227686703 [2022-11-23 03:40:11,255 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1237 transitions. [2022-11-23 03:40:11,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1237 transitions. [2022-11-23 03:40:11,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:11,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1237 transitions. [2022-11-23 03:40:11,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 137.44444444444446) internal successors, (1237), 9 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:11,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:11,267 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:11,267 INFO L175 Difference]: Start difference. First operand has 105 places, 71 transitions, 630 flow. Second operand 9 states and 1237 transitions. [2022-11-23 03:40:11,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 77 transitions, 794 flow [2022-11-23 03:40:11,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 77 transitions, 713 flow, removed 11 selfloop flow, removed 14 redundant places. [2022-11-23 03:40:11,281 INFO L231 Difference]: Finished difference. Result has 98 places, 70 transitions, 573 flow [2022-11-23 03:40:11,281 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=573, PETRI_PLACES=98, PETRI_TRANSITIONS=70} [2022-11-23 03:40:11,282 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 64 predicate places. [2022-11-23 03:40:11,282 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 70 transitions, 573 flow [2022-11-23 03:40:11,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:11,284 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:11,284 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:11,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 03:40:11,285 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:11,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:11,286 INFO L85 PathProgramCache]: Analyzing trace with hash -353499486, now seen corresponding path program 3 times [2022-11-23 03:40:11,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:11,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586365765] [2022-11-23 03:40:11,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:11,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:12,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:12,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586365765] [2022-11-23 03:40:12,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586365765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:12,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:12,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:12,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124505732] [2022-11-23 03:40:12,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:12,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:40:12,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:12,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:40:12,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:40:12,987 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-23 03:40:12,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 70 transitions, 573 flow. Second operand has 10 states, 10 states have (on average 136.2) internal successors, (1362), 10 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) [2022-11-23 03:40:12,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:12,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-23 03:40:12,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:13,894 INFO L130 PetriNetUnfolder]: 152/438 cut-off events. [2022-11-23 03:40:13,894 INFO L131 PetriNetUnfolder]: For 1337/1337 co-relation queries the response was YES. [2022-11-23 03:40:13,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1728 conditions, 438 events. 152/438 cut-off events. For 1337/1337 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2270 event pairs, 36 based on Foata normal form. 3/441 useless extension candidates. Maximal degree in co-relation 1396. Up to 203 conditions per place. [2022-11-23 03:40:13,899 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 81 selfloop transitions, 43 changer transitions 1/126 dead transitions. [2022-11-23 03:40:13,899 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 126 transitions, 1141 flow [2022-11-23 03:40:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:40:13,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-23 03:40:13,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1698 transitions. [2022-11-23 03:40:13,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4639344262295082 [2022-11-23 03:40:13,906 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1698 transitions. [2022-11-23 03:40:13,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1698 transitions. [2022-11-23 03:40:13,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:13,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1698 transitions. [2022-11-23 03:40:13,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 141.5) internal successors, (1698), 12 states have internal predecessors, (1698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:13,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:13,920 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:13,920 INFO L175 Difference]: Start difference. First operand has 98 places, 70 transitions, 573 flow. Second operand 12 states and 1698 transitions. [2022-11-23 03:40:13,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 126 transitions, 1141 flow [2022-11-23 03:40:13,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 126 transitions, 1100 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-23 03:40:13,931 INFO L231 Difference]: Finished difference. Result has 105 places, 90 transitions, 853 flow [2022-11-23 03:40:13,931 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=853, PETRI_PLACES=105, PETRI_TRANSITIONS=90} [2022-11-23 03:40:13,932 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 71 predicate places. [2022-11-23 03:40:13,932 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 90 transitions, 853 flow [2022-11-23 03:40:13,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 136.2) internal successors, (1362), 10 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) [2022-11-23 03:40:13,933 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:13,933 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:13,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 03:40:13,934 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:13,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:13,935 INFO L85 PathProgramCache]: Analyzing trace with hash -438689531, now seen corresponding path program 1 times [2022-11-23 03:40:13,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:13,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961755668] [2022-11-23 03:40:13,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:13,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:14,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:14,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:14,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961755668] [2022-11-23 03:40:14,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961755668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:14,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:14,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:14,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621088551] [2022-11-23 03:40:14,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:14,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:40:14,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:14,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:40:14,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:40:15,504 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-23 03:40:15,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 90 transitions, 853 flow. Second operand has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 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) [2022-11-23 03:40:15,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:15,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-23 03:40:15,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:16,158 INFO L130 PetriNetUnfolder]: 151/438 cut-off events. [2022-11-23 03:40:16,158 INFO L131 PetriNetUnfolder]: For 1831/1831 co-relation queries the response was YES. [2022-11-23 03:40:16,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1903 conditions, 438 events. 151/438 cut-off events. For 1831/1831 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2245 event pairs, 73 based on Foata normal form. 2/440 useless extension candidates. Maximal degree in co-relation 1621. Up to 342 conditions per place. [2022-11-23 03:40:16,162 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 67 selfloop transitions, 26 changer transitions 12/106 dead transitions. [2022-11-23 03:40:16,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 106 transitions, 1152 flow [2022-11-23 03:40:16,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:40:16,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-23 03:40:16,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1807 transitions. [2022-11-23 03:40:16,168 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4557377049180328 [2022-11-23 03:40:16,168 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1807 transitions. [2022-11-23 03:40:16,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1807 transitions. [2022-11-23 03:40:16,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:16,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1807 transitions. [2022-11-23 03:40:16,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 139.0) internal successors, (1807), 13 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:16,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:16,180 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:16,180 INFO L175 Difference]: Start difference. First operand has 105 places, 90 transitions, 853 flow. Second operand 13 states and 1807 transitions. [2022-11-23 03:40:16,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 106 transitions, 1152 flow [2022-11-23 03:40:16,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 106 transitions, 1118 flow, removed 13 selfloop flow, removed 3 redundant places. [2022-11-23 03:40:16,191 INFO L231 Difference]: Finished difference. Result has 113 places, 85 transitions, 869 flow [2022-11-23 03:40:16,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=869, PETRI_PLACES=113, PETRI_TRANSITIONS=85} [2022-11-23 03:40:16,192 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 79 predicate places. [2022-11-23 03:40:16,192 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 85 transitions, 869 flow [2022-11-23 03:40:16,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 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) [2022-11-23 03:40:16,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:16,193 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:16,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 03:40:16,194 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:16,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:16,194 INFO L85 PathProgramCache]: Analyzing trace with hash -353499485, now seen corresponding path program 2 times [2022-11-23 03:40:16,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:16,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617564193] [2022-11-23 03:40:16,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:16,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:17,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:17,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:17,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617564193] [2022-11-23 03:40:17,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617564193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:17,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:17,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:17,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843890503] [2022-11-23 03:40:17,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:17,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:40:17,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:17,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:40:17,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:40:18,068 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-23 03:40:18,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 85 transitions, 869 flow. Second operand has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 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) [2022-11-23 03:40:18,071 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:18,071 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-23 03:40:18,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:19,253 INFO L130 PetriNetUnfolder]: 148/418 cut-off events. [2022-11-23 03:40:19,253 INFO L131 PetriNetUnfolder]: For 1961/1961 co-relation queries the response was YES. [2022-11-23 03:40:19,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1867 conditions, 418 events. 148/418 cut-off events. For 1961/1961 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2094 event pairs, 34 based on Foata normal form. 9/427 useless extension candidates. Maximal degree in co-relation 1511. Up to 147 conditions per place. [2022-11-23 03:40:19,258 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 59 selfloop transitions, 61 changer transitions 0/121 dead transitions. [2022-11-23 03:40:19,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 121 transitions, 1290 flow [2022-11-23 03:40:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 03:40:19,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-23 03:40:19,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2644 transitions. [2022-11-23 03:40:19,264 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4562553925798102 [2022-11-23 03:40:19,265 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2644 transitions. [2022-11-23 03:40:19,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2644 transitions. [2022-11-23 03:40:19,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:19,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2644 transitions. [2022-11-23 03:40:19,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 139.1578947368421) internal successors, (2644), 19 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:19,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 305.0) internal successors, (6100), 20 states have internal predecessors, (6100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:19,283 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 305.0) internal successors, (6100), 20 states have internal predecessors, (6100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:19,283 INFO L175 Difference]: Start difference. First operand has 113 places, 85 transitions, 869 flow. Second operand 19 states and 2644 transitions. [2022-11-23 03:40:19,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 121 transitions, 1290 flow [2022-11-23 03:40:19,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 121 transitions, 1153 flow, removed 18 selfloop flow, removed 12 redundant places. [2022-11-23 03:40:19,295 INFO L231 Difference]: Finished difference. Result has 108 places, 92 transitions, 977 flow [2022-11-23 03:40:19,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=977, PETRI_PLACES=108, PETRI_TRANSITIONS=92} [2022-11-23 03:40:19,296 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 74 predicate places. [2022-11-23 03:40:19,297 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 92 transitions, 977 flow [2022-11-23 03:40:19,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 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) [2022-11-23 03:40:19,298 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:19,298 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:19,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 03:40:19,298 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:19,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:19,299 INFO L85 PathProgramCache]: Analyzing trace with hash -900462246, now seen corresponding path program 4 times [2022-11-23 03:40:19,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:19,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63824693] [2022-11-23 03:40:19,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:19,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:20,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:20,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63824693] [2022-11-23 03:40:20,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63824693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:20,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:20,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:20,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046039610] [2022-11-23 03:40:20,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:20,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:40:20,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:20,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:40:20,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:40:21,205 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 305 [2022-11-23 03:40:21,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 92 transitions, 977 flow. Second operand has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:21,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:21,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 305 [2022-11-23 03:40:21,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:21,930 INFO L130 PetriNetUnfolder]: 156/439 cut-off events. [2022-11-23 03:40:21,931 INFO L131 PetriNetUnfolder]: For 2031/2031 co-relation queries the response was YES. [2022-11-23 03:40:21,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 439 events. 156/439 cut-off events. For 2031/2031 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2243 event pairs, 27 based on Foata normal form. 6/445 useless extension candidates. Maximal degree in co-relation 1667. Up to 164 conditions per place. [2022-11-23 03:40:21,936 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 69 selfloop transitions, 50 changer transitions 0/120 dead transitions. [2022-11-23 03:40:21,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 120 transitions, 1372 flow [2022-11-23 03:40:21,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:40:21,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-23 03:40:21,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1518 transitions. [2022-11-23 03:40:21,940 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4524590163934426 [2022-11-23 03:40:21,940 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1518 transitions. [2022-11-23 03:40:21,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1518 transitions. [2022-11-23 03:40:21,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:21,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1518 transitions. [2022-11-23 03:40:21,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 138.0) internal successors, (1518), 11 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:21,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:21,951 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:21,951 INFO L175 Difference]: Start difference. First operand has 108 places, 92 transitions, 977 flow. Second operand 11 states and 1518 transitions. [2022-11-23 03:40:21,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 120 transitions, 1372 flow [2022-11-23 03:40:21,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 120 transitions, 1240 flow, removed 31 selfloop flow, removed 12 redundant places. [2022-11-23 03:40:21,964 INFO L231 Difference]: Finished difference. Result has 110 places, 99 transitions, 1111 flow [2022-11-23 03:40:21,965 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1111, PETRI_PLACES=110, PETRI_TRANSITIONS=99} [2022-11-23 03:40:21,965 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 76 predicate places. [2022-11-23 03:40:21,966 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 99 transitions, 1111 flow [2022-11-23 03:40:21,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:21,967 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:21,967 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:21,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 03:40:21,967 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:21,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:21,968 INFO L85 PathProgramCache]: Analyzing trace with hash -900462245, now seen corresponding path program 3 times [2022-11-23 03:40:21,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:21,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345286536] [2022-11-23 03:40:21,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:21,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:22,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:22,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:22,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345286536] [2022-11-23 03:40:22,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345286536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:22,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:22,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:22,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427137312] [2022-11-23 03:40:22,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:22,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:40:22,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:22,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:40:22,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:40:23,464 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-23 03:40:23,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 99 transitions, 1111 flow. Second operand has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 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) [2022-11-23 03:40:23,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:23,466 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-23 03:40:23,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:24,212 INFO L130 PetriNetUnfolder]: 150/427 cut-off events. [2022-11-23 03:40:24,212 INFO L131 PetriNetUnfolder]: For 1961/1961 co-relation queries the response was YES. [2022-11-23 03:40:24,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1954 conditions, 427 events. 150/427 cut-off events. For 1961/1961 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2174 event pairs, 20 based on Foata normal form. 6/433 useless extension candidates. Maximal degree in co-relation 1775. Up to 168 conditions per place. [2022-11-23 03:40:24,217 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 43 selfloop transitions, 66 changer transitions 0/110 dead transitions. [2022-11-23 03:40:24,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 110 transitions, 1331 flow [2022-11-23 03:40:24,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:40:24,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 03:40:24,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1943 transitions. [2022-11-23 03:40:24,222 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4550351288056206 [2022-11-23 03:40:24,222 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1943 transitions. [2022-11-23 03:40:24,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1943 transitions. [2022-11-23 03:40:24,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:24,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1943 transitions. [2022-11-23 03:40:24,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 138.78571428571428) internal successors, (1943), 14 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:24,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:24,235 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:24,235 INFO L175 Difference]: Start difference. First operand has 110 places, 99 transitions, 1111 flow. Second operand 14 states and 1943 transitions. [2022-11-23 03:40:24,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 110 transitions, 1331 flow [2022-11-23 03:40:24,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 110 transitions, 1222 flow, removed 17 selfloop flow, removed 10 redundant places. [2022-11-23 03:40:24,249 INFO L231 Difference]: Finished difference. Result has 112 places, 95 transitions, 1090 flow [2022-11-23 03:40:24,250 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=958, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1090, PETRI_PLACES=112, PETRI_TRANSITIONS=95} [2022-11-23 03:40:24,250 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 78 predicate places. [2022-11-23 03:40:24,251 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 95 transitions, 1090 flow [2022-11-23 03:40:24,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 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) [2022-11-23 03:40:24,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:24,252 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:24,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 03:40:24,252 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:24,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:24,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1844383004, now seen corresponding path program 5 times [2022-11-23 03:40:24,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:24,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564124531] [2022-11-23 03:40:24,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:24,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:24,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:24,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:24,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564124531] [2022-11-23 03:40:24,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564124531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:24,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:24,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 03:40:24,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232790239] [2022-11-23 03:40:24,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:24,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:40:24,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:24,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:40:24,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:40:25,389 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 305 [2022-11-23 03:40:25,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 95 transitions, 1090 flow. Second operand has 8 states, 8 states have (on average 144.5) internal successors, (1156), 8 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:25,391 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:25,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 305 [2022-11-23 03:40:25,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:25,949 INFO L130 PetriNetUnfolder]: 138/409 cut-off events. [2022-11-23 03:40:25,949 INFO L131 PetriNetUnfolder]: For 1677/1678 co-relation queries the response was YES. [2022-11-23 03:40:25,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 409 events. 138/409 cut-off events. For 1677/1678 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2108 event pairs, 35 based on Foata normal form. 4/413 useless extension candidates. Maximal degree in co-relation 1638. Up to 177 conditions per place. [2022-11-23 03:40:25,955 INFO L137 encePairwiseOnDemand]: 297/305 looper letters, 68 selfloop transitions, 42 changer transitions 0/115 dead transitions. [2022-11-23 03:40:25,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 115 transitions, 1363 flow [2022-11-23 03:40:25,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:40:25,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-23 03:40:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1342 transitions. [2022-11-23 03:40:25,962 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2022-11-23 03:40:25,962 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1342 transitions. [2022-11-23 03:40:25,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1342 transitions. [2022-11-23 03:40:25,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:25,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1342 transitions. [2022-11-23 03:40:25,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 149.11111111111111) internal successors, (1342), 9 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:25,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:25,971 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 305.0) internal successors, (3050), 10 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:25,971 INFO L175 Difference]: Start difference. First operand has 112 places, 95 transitions, 1090 flow. Second operand 9 states and 1342 transitions. [2022-11-23 03:40:25,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 115 transitions, 1363 flow [2022-11-23 03:40:25,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 115 transitions, 1228 flow, removed 2 selfloop flow, removed 14 redundant places. [2022-11-23 03:40:25,985 INFO L231 Difference]: Finished difference. Result has 106 places, 93 transitions, 1018 flow [2022-11-23 03:40:25,986 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1018, PETRI_PLACES=106, PETRI_TRANSITIONS=93} [2022-11-23 03:40:25,986 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 72 predicate places. [2022-11-23 03:40:25,987 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 93 transitions, 1018 flow [2022-11-23 03:40:25,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 144.5) internal successors, (1156), 8 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:25,987 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:25,987 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:25,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 03:40:25,988 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:25,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:25,989 INFO L85 PathProgramCache]: Analyzing trace with hash -895875039, now seen corresponding path program 4 times [2022-11-23 03:40:25,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:25,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247961909] [2022-11-23 03:40:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:25,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:26,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:26,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:26,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247961909] [2022-11-23 03:40:26,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247961909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:26,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:26,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:26,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141375913] [2022-11-23 03:40:26,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:26,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:40:26,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:26,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:40:26,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:40:27,624 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-23 03:40:27,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 93 transitions, 1018 flow. Second operand has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 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) [2022-11-23 03:40:27,626 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:27,626 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-23 03:40:27,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:28,344 INFO L130 PetriNetUnfolder]: 145/410 cut-off events. [2022-11-23 03:40:28,344 INFO L131 PetriNetUnfolder]: For 1683/1683 co-relation queries the response was YES. [2022-11-23 03:40:28,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1821 conditions, 410 events. 145/410 cut-off events. For 1683/1683 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2057 event pairs, 15 based on Foata normal form. 3/413 useless extension candidates. Maximal degree in co-relation 1484. Up to 137 conditions per place. [2022-11-23 03:40:28,349 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 34 selfloop transitions, 69 changer transitions 0/104 dead transitions. [2022-11-23 03:40:28,349 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 104 transitions, 1274 flow [2022-11-23 03:40:28,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:40:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 03:40:28,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1935 transitions. [2022-11-23 03:40:28,354 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4531615925058548 [2022-11-23 03:40:28,354 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1935 transitions. [2022-11-23 03:40:28,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1935 transitions. [2022-11-23 03:40:28,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:28,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1935 transitions. [2022-11-23 03:40:28,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 138.21428571428572) internal successors, (1935), 14 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:28,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:28,367 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:28,367 INFO L175 Difference]: Start difference. First operand has 106 places, 93 transitions, 1018 flow. Second operand 14 states and 1935 transitions. [2022-11-23 03:40:28,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 104 transitions, 1274 flow [2022-11-23 03:40:28,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 104 transitions, 1243 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-23 03:40:28,379 INFO L231 Difference]: Finished difference. Result has 118 places, 95 transitions, 1231 flow [2022-11-23 03:40:28,379 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=977, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1231, PETRI_PLACES=118, PETRI_TRANSITIONS=95} [2022-11-23 03:40:28,380 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 84 predicate places. [2022-11-23 03:40:28,380 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 95 transitions, 1231 flow [2022-11-23 03:40:28,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.0909090909091) internal successors, (1497), 11 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) [2022-11-23 03:40:28,381 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:28,381 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:28,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 03:40:28,381 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:28,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:28,382 INFO L85 PathProgramCache]: Analyzing trace with hash -895875040, now seen corresponding path program 6 times [2022-11-23 03:40:28,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:28,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706115616] [2022-11-23 03:40:28,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:28,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:29,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:29,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:29,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706115616] [2022-11-23 03:40:29,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706115616] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:29,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:29,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:40:29,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542384476] [2022-11-23 03:40:29,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:29,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:40:29,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:29,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:40:29,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:40:30,067 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 305 [2022-11-23 03:40:30,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 95 transitions, 1231 flow. Second operand has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:30,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:30,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 305 [2022-11-23 03:40:30,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:30,730 INFO L130 PetriNetUnfolder]: 142/403 cut-off events. [2022-11-23 03:40:30,730 INFO L131 PetriNetUnfolder]: For 2386/2386 co-relation queries the response was YES. [2022-11-23 03:40:30,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1989 conditions, 403 events. 142/403 cut-off events. For 2386/2386 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2010 event pairs, 21 based on Foata normal form. 3/406 useless extension candidates. Maximal degree in co-relation 1617. Up to 129 conditions per place. [2022-11-23 03:40:30,735 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 57 selfloop transitions, 50 changer transitions 0/108 dead transitions. [2022-11-23 03:40:30,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 108 transitions, 1472 flow [2022-11-23 03:40:30,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:40:30,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-23 03:40:30,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1508 transitions. [2022-11-23 03:40:30,739 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.449478390461997 [2022-11-23 03:40:30,739 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1508 transitions. [2022-11-23 03:40:30,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1508 transitions. [2022-11-23 03:40:30,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:30,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1508 transitions. [2022-11-23 03:40:30,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 137.0909090909091) internal successors, (1508), 11 states have internal predecessors, (1508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:30,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:30,748 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:30,749 INFO L175 Difference]: Start difference. First operand has 118 places, 95 transitions, 1231 flow. Second operand 11 states and 1508 transitions. [2022-11-23 03:40:30,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 108 transitions, 1472 flow [2022-11-23 03:40:30,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 108 transitions, 1339 flow, removed 6 selfloop flow, removed 12 redundant places. [2022-11-23 03:40:30,794 INFO L231 Difference]: Finished difference. Result has 116 places, 93 transitions, 1176 flow [2022-11-23 03:40:30,794 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1176, PETRI_PLACES=116, PETRI_TRANSITIONS=93} [2022-11-23 03:40:30,795 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 82 predicate places. [2022-11-23 03:40:30,795 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 93 transitions, 1176 flow [2022-11-23 03:40:30,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 134.0909090909091) internal successors, (1475), 11 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:30,796 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:30,796 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:30,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-23 03:40:30,796 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:30,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:30,797 INFO L85 PathProgramCache]: Analyzing trace with hash -2047515498, now seen corresponding path program 1 times [2022-11-23 03:40:30,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:30,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592536120] [2022-11-23 03:40:30,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:30,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:32,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:32,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:32,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592536120] [2022-11-23 03:40:32,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592536120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:32,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:32,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:40:32,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286716499] [2022-11-23 03:40:32,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:32,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:40:32,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:32,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:40:32,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:40:34,138 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:40:34,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 93 transitions, 1176 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:34,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:34,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:40:34,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:35,238 INFO L130 PetriNetUnfolder]: 165/476 cut-off events. [2022-11-23 03:40:35,239 INFO L131 PetriNetUnfolder]: For 2691/2691 co-relation queries the response was YES. [2022-11-23 03:40:35,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2325 conditions, 476 events. 165/476 cut-off events. For 2691/2691 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2546 event pairs, 56 based on Foata normal form. 5/481 useless extension candidates. Maximal degree in co-relation 2032. Up to 299 conditions per place. [2022-11-23 03:40:35,244 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 92 selfloop transitions, 45 changer transitions 0/138 dead transitions. [2022-11-23 03:40:35,244 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 138 transitions, 1946 flow [2022-11-23 03:40:35,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:40:35,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-23 03:40:35,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1430 transitions. [2022-11-23 03:40:35,248 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4262295081967213 [2022-11-23 03:40:35,248 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1430 transitions. [2022-11-23 03:40:35,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1430 transitions. [2022-11-23 03:40:35,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:35,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1430 transitions. [2022-11-23 03:40:35,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 130.0) internal successors, (1430), 11 states have internal predecessors, (1430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:35,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:35,259 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:35,259 INFO L175 Difference]: Start difference. First operand has 116 places, 93 transitions, 1176 flow. Second operand 11 states and 1430 transitions. [2022-11-23 03:40:35,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 138 transitions, 1946 flow [2022-11-23 03:40:35,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 138 transitions, 1703 flow, removed 10 selfloop flow, removed 11 redundant places. [2022-11-23 03:40:35,275 INFO L231 Difference]: Finished difference. Result has 120 places, 112 transitions, 1417 flow [2022-11-23 03:40:35,276 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1013, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1417, PETRI_PLACES=120, PETRI_TRANSITIONS=112} [2022-11-23 03:40:35,276 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 86 predicate places. [2022-11-23 03:40:35,277 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 112 transitions, 1417 flow [2022-11-23 03:40:35,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:35,278 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:35,278 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:35,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-23 03:40:35,278 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:35,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:35,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1450606721, now seen corresponding path program 1 times [2022-11-23 03:40:35,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:35,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026707360] [2022-11-23 03:40:35,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:35,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:36,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:36,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:36,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026707360] [2022-11-23 03:40:36,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026707360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:36,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:36,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:40:36,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577883493] [2022-11-23 03:40:36,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:36,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:40:36,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:36,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:40:36,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:40:38,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:40:38,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 112 transitions, 1417 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:38,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:38,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:40:38,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:39,075 INFO L130 PetriNetUnfolder]: 179/514 cut-off events. [2022-11-23 03:40:39,075 INFO L131 PetriNetUnfolder]: For 2578/2578 co-relation queries the response was YES. [2022-11-23 03:40:39,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2589 conditions, 514 events. 179/514 cut-off events. For 2578/2578 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2873 event pairs, 46 based on Foata normal form. 2/516 useless extension candidates. Maximal degree in co-relation 2319. Up to 205 conditions per place. [2022-11-23 03:40:39,081 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 91 selfloop transitions, 60 changer transitions 0/152 dead transitions. [2022-11-23 03:40:39,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 152 transitions, 2027 flow [2022-11-23 03:40:39,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:40:39,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-23 03:40:39,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1975 transitions. [2022-11-23 03:40:39,085 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43169398907103823 [2022-11-23 03:40:39,086 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1975 transitions. [2022-11-23 03:40:39,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1975 transitions. [2022-11-23 03:40:39,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:39,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1975 transitions. [2022-11-23 03:40:39,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 131.66666666666666) internal successors, (1975), 15 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:39,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:39,096 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:39,096 INFO L175 Difference]: Start difference. First operand has 120 places, 112 transitions, 1417 flow. Second operand 15 states and 1975 transitions. [2022-11-23 03:40:39,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 152 transitions, 2027 flow [2022-11-23 03:40:39,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 152 transitions, 1982 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-23 03:40:39,111 INFO L231 Difference]: Finished difference. Result has 134 places, 122 transitions, 1645 flow [2022-11-23 03:40:39,112 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1376, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1645, PETRI_PLACES=134, PETRI_TRANSITIONS=122} [2022-11-23 03:40:39,112 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 100 predicate places. [2022-11-23 03:40:39,112 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 122 transitions, 1645 flow [2022-11-23 03:40:39,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:39,113 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:39,113 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:39,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-23 03:40:39,114 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:39,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:39,114 INFO L85 PathProgramCache]: Analyzing trace with hash 2004230773, now seen corresponding path program 2 times [2022-11-23 03:40:39,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:39,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656403105] [2022-11-23 03:40:39,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:39,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:40,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:40,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:40,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656403105] [2022-11-23 03:40:40,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656403105] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:40,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:40,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:40:40,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586053426] [2022-11-23 03:40:40,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:40,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:40:40,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:40,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:40:40,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:40:41,503 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:40:41,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 122 transitions, 1645 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:41,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:41,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:40:41,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:42,495 INFO L130 PetriNetUnfolder]: 196/579 cut-off events. [2022-11-23 03:40:42,495 INFO L131 PetriNetUnfolder]: For 3558/3558 co-relation queries the response was YES. [2022-11-23 03:40:42,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3111 conditions, 579 events. 196/579 cut-off events. For 3558/3558 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3392 event pairs, 94 based on Foata normal form. 1/580 useless extension candidates. Maximal degree in co-relation 2830. Up to 459 conditions per place. [2022-11-23 03:40:42,520 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 119 selfloop transitions, 40 changer transitions 0/160 dead transitions. [2022-11-23 03:40:42,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 160 transitions, 2284 flow [2022-11-23 03:40:42,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:40:42,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 03:40:42,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1835 transitions. [2022-11-23 03:40:42,525 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4297423887587822 [2022-11-23 03:40:42,525 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1835 transitions. [2022-11-23 03:40:42,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1835 transitions. [2022-11-23 03:40:42,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:42,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1835 transitions. [2022-11-23 03:40:42,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 131.07142857142858) internal successors, (1835), 14 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:42,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:42,535 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:42,535 INFO L175 Difference]: Start difference. First operand has 134 places, 122 transitions, 1645 flow. Second operand 14 states and 1835 transitions. [2022-11-23 03:40:42,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 160 transitions, 2284 flow [2022-11-23 03:40:42,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 160 transitions, 2147 flow, removed 7 selfloop flow, removed 9 redundant places. [2022-11-23 03:40:42,556 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 1865 flow [2022-11-23 03:40:42,556 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1529, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1865, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2022-11-23 03:40:42,557 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 110 predicate places. [2022-11-23 03:40:42,557 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 1865 flow [2022-11-23 03:40:42,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:42,558 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:42,558 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:42,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-23 03:40:42,558 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:42,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:42,559 INFO L85 PathProgramCache]: Analyzing trace with hash -934495838, now seen corresponding path program 2 times [2022-11-23 03:40:42,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:42,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773742714] [2022-11-23 03:40:42,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:42,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:43,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:43,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773742714] [2022-11-23 03:40:43,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773742714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:43,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:43,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:40:43,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267351585] [2022-11-23 03:40:43,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:43,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:40:43,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:43,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:40:43,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:40:45,046 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:40:45,048 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 1865 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:45,048 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:45,048 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:40:45,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:45,860 INFO L130 PetriNetUnfolder]: 211/625 cut-off events. [2022-11-23 03:40:45,860 INFO L131 PetriNetUnfolder]: For 4109/4109 co-relation queries the response was YES. [2022-11-23 03:40:45,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3406 conditions, 625 events. 211/625 cut-off events. For 4109/4109 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3740 event pairs, 92 based on Foata normal form. 5/630 useless extension candidates. Maximal degree in co-relation 3110. Up to 491 conditions per place. [2022-11-23 03:40:45,866 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 139 selfloop transitions, 28 changer transitions 0/168 dead transitions. [2022-11-23 03:40:45,866 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 168 transitions, 2397 flow [2022-11-23 03:40:45,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:40:45,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-23 03:40:45,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1429 transitions. [2022-11-23 03:40:45,870 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42593144560357676 [2022-11-23 03:40:45,870 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1429 transitions. [2022-11-23 03:40:45,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1429 transitions. [2022-11-23 03:40:45,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:45,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1429 transitions. [2022-11-23 03:40:45,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.9090909090909) internal successors, (1429), 11 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:45,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:45,879 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:45,879 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 1865 flow. Second operand 11 states and 1429 transitions. [2022-11-23 03:40:45,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 168 transitions, 2397 flow [2022-11-23 03:40:45,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 168 transitions, 2358 flow, removed 15 selfloop flow, removed 2 redundant places. [2022-11-23 03:40:45,906 INFO L231 Difference]: Finished difference. Result has 157 places, 150 transitions, 2018 flow [2022-11-23 03:40:45,907 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1828, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2018, PETRI_PLACES=157, PETRI_TRANSITIONS=150} [2022-11-23 03:40:45,907 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 123 predicate places. [2022-11-23 03:40:45,908 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 150 transitions, 2018 flow [2022-11-23 03:40:45,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:45,908 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:45,909 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:45,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-23 03:40:45,909 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:45,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:45,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1542660912, now seen corresponding path program 3 times [2022-11-23 03:40:45,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:45,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5604476] [2022-11-23 03:40:45,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:45,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:47,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:47,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:47,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5604476] [2022-11-23 03:40:47,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5604476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:47,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:47,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:40:47,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812992067] [2022-11-23 03:40:47,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:47,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:40:47,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:47,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:40:47,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:40:48,337 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:40:48,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 150 transitions, 2018 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:48,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:48,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:40:48,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:49,389 INFO L130 PetriNetUnfolder]: 218/650 cut-off events. [2022-11-23 03:40:49,389 INFO L131 PetriNetUnfolder]: For 5039/5039 co-relation queries the response was YES. [2022-11-23 03:40:49,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3653 conditions, 650 events. 218/650 cut-off events. For 5039/5039 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3993 event pairs, 71 based on Foata normal form. 5/655 useless extension candidates. Maximal degree in co-relation 3450. Up to 282 conditions per place. [2022-11-23 03:40:49,394 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 143 selfloop transitions, 57 changer transitions 0/201 dead transitions. [2022-11-23 03:40:49,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 201 transitions, 2814 flow [2022-11-23 03:40:49,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:40:49,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-23 03:40:49,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1958 transitions. [2022-11-23 03:40:49,399 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42797814207650275 [2022-11-23 03:40:49,399 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1958 transitions. [2022-11-23 03:40:49,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1958 transitions. [2022-11-23 03:40:49,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:49,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1958 transitions. [2022-11-23 03:40:49,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 130.53333333333333) internal successors, (1958), 15 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:49,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:49,410 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:49,410 INFO L175 Difference]: Start difference. First operand has 157 places, 150 transitions, 2018 flow. Second operand 15 states and 1958 transitions. [2022-11-23 03:40:49,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 201 transitions, 2814 flow [2022-11-23 03:40:49,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 201 transitions, 2757 flow, removed 14 selfloop flow, removed 5 redundant places. [2022-11-23 03:40:49,440 INFO L231 Difference]: Finished difference. Result has 169 places, 150 transitions, 2109 flow [2022-11-23 03:40:49,441 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1937, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2109, PETRI_PLACES=169, PETRI_TRANSITIONS=150} [2022-11-23 03:40:49,441 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 135 predicate places. [2022-11-23 03:40:49,442 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 150 transitions, 2109 flow [2022-11-23 03:40:49,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:49,442 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:49,442 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:49,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-23 03:40:49,443 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:49,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:49,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1207590358, now seen corresponding path program 4 times [2022-11-23 03:40:49,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:49,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229691699] [2022-11-23 03:40:49,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:49,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:49,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:50,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:50,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:50,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229691699] [2022-11-23 03:40:50,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229691699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:50,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:50,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:40:50,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22180795] [2022-11-23 03:40:50,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:50,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:40:50,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:50,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:40:50,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:40:51,751 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:40:51,752 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 150 transitions, 2109 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:51,752 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:51,752 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:40:51,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:52,896 INFO L130 PetriNetUnfolder]: 237/706 cut-off events. [2022-11-23 03:40:52,896 INFO L131 PetriNetUnfolder]: For 6001/6001 co-relation queries the response was YES. [2022-11-23 03:40:52,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4046 conditions, 706 events. 237/706 cut-off events. For 6001/6001 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4456 event pairs, 84 based on Foata normal form. 5/711 useless extension candidates. Maximal degree in co-relation 3758. Up to 360 conditions per place. [2022-11-23 03:40:52,904 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 132 selfloop transitions, 63 changer transitions 0/196 dead transitions. [2022-11-23 03:40:52,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 196 transitions, 2850 flow [2022-11-23 03:40:52,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:40:52,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-23 03:40:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1947 transitions. [2022-11-23 03:40:52,908 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4255737704918033 [2022-11-23 03:40:52,908 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1947 transitions. [2022-11-23 03:40:52,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1947 transitions. [2022-11-23 03:40:52,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:52,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1947 transitions. [2022-11-23 03:40:52,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 129.8) internal successors, (1947), 15 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:52,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:52,918 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:52,918 INFO L175 Difference]: Start difference. First operand has 169 places, 150 transitions, 2109 flow. Second operand 15 states and 1947 transitions. [2022-11-23 03:40:52,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 196 transitions, 2850 flow [2022-11-23 03:40:52,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 196 transitions, 2732 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-11-23 03:40:52,950 INFO L231 Difference]: Finished difference. Result has 180 places, 156 transitions, 2238 flow [2022-11-23 03:40:52,950 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1993, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2238, PETRI_PLACES=180, PETRI_TRANSITIONS=156} [2022-11-23 03:40:52,951 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 146 predicate places. [2022-11-23 03:40:52,951 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 156 transitions, 2238 flow [2022-11-23 03:40:52,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:52,951 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:52,951 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:52,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-23 03:40:52,952 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:52,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:52,952 INFO L85 PathProgramCache]: Analyzing trace with hash 160405728, now seen corresponding path program 5 times [2022-11-23 03:40:52,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:52,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318858046] [2022-11-23 03:40:52,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:52,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:54,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:54,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:54,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318858046] [2022-11-23 03:40:54,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318858046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:54,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:54,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:40:54,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874810593] [2022-11-23 03:40:54,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:54,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:40:54,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:54,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:40:54,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:40:55,548 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:40:55,549 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 156 transitions, 2238 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:55,549 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:55,549 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:40:55,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:56,651 INFO L130 PetriNetUnfolder]: 248/742 cut-off events. [2022-11-23 03:40:56,651 INFO L131 PetriNetUnfolder]: For 6835/6835 co-relation queries the response was YES. [2022-11-23 03:40:56,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4349 conditions, 742 events. 248/742 cut-off events. For 6835/6835 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4752 event pairs, 102 based on Foata normal form. 5/747 useless extension candidates. Maximal degree in co-relation 4051. Up to 360 conditions per place. [2022-11-23 03:40:56,658 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 120 selfloop transitions, 68 changer transitions 0/189 dead transitions. [2022-11-23 03:40:56,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 189 transitions, 2842 flow [2022-11-23 03:40:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:40:56,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 03:40:56,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1819 transitions. [2022-11-23 03:40:56,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42599531615925057 [2022-11-23 03:40:56,662 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1819 transitions. [2022-11-23 03:40:56,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1819 transitions. [2022-11-23 03:40:56,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:56,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1819 transitions. [2022-11-23 03:40:56,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 129.92857142857142) internal successors, (1819), 14 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:56,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:56,671 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:56,672 INFO L175 Difference]: Start difference. First operand has 180 places, 156 transitions, 2238 flow. Second operand 14 states and 1819 transitions. [2022-11-23 03:40:56,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 189 transitions, 2842 flow [2022-11-23 03:40:56,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 189 transitions, 2721 flow, removed 21 selfloop flow, removed 6 redundant places. [2022-11-23 03:40:56,705 INFO L231 Difference]: Finished difference. Result has 190 places, 160 transitions, 2352 flow [2022-11-23 03:40:56,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=2133, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2352, PETRI_PLACES=190, PETRI_TRANSITIONS=160} [2022-11-23 03:40:56,706 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 156 predicate places. [2022-11-23 03:40:56,706 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 160 transitions, 2352 flow [2022-11-23 03:40:56,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:56,706 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:56,706 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:56,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-23 03:40:56,707 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:56,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:56,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1443047702, now seen corresponding path program 6 times [2022-11-23 03:40:56,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:56,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325073845] [2022-11-23 03:40:56,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:56,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:40:57,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:40:57,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:40:57,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325073845] [2022-11-23 03:40:57,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325073845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:40:57,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:40:57,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:40:57,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314889675] [2022-11-23 03:40:57,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:40:57,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:40:57,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:40:57,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:40:57,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:40:58,618 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:40:58,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 160 transitions, 2352 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:58,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:40:58,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:40:58,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:40:59,588 INFO L130 PetriNetUnfolder]: 263/791 cut-off events. [2022-11-23 03:40:59,588 INFO L131 PetriNetUnfolder]: For 7599/7599 co-relation queries the response was YES. [2022-11-23 03:40:59,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4677 conditions, 791 events. 263/791 cut-off events. For 7599/7599 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5229 event pairs, 64 based on Foata normal form. 9/800 useless extension candidates. Maximal degree in co-relation 4371. Up to 421 conditions per place. [2022-11-23 03:40:59,597 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 134 selfloop transitions, 76 changer transitions 0/211 dead transitions. [2022-11-23 03:40:59,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 211 transitions, 3201 flow [2022-11-23 03:40:59,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:40:59,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-23 03:40:59,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1979 transitions. [2022-11-23 03:40:59,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43256830601092894 [2022-11-23 03:40:59,604 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1979 transitions. [2022-11-23 03:40:59,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1979 transitions. [2022-11-23 03:40:59,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:40:59,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1979 transitions. [2022-11-23 03:40:59,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 131.93333333333334) internal successors, (1979), 15 states have internal predecessors, (1979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:59,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:59,614 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:59,614 INFO L175 Difference]: Start difference. First operand has 190 places, 160 transitions, 2352 flow. Second operand 15 states and 1979 transitions. [2022-11-23 03:40:59,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 211 transitions, 3201 flow [2022-11-23 03:40:59,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 211 transitions, 3016 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-11-23 03:40:59,650 INFO L231 Difference]: Finished difference. Result has 203 places, 175 transitions, 2603 flow [2022-11-23 03:40:59,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=2179, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2603, PETRI_PLACES=203, PETRI_TRANSITIONS=175} [2022-11-23 03:40:59,651 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 169 predicate places. [2022-11-23 03:40:59,652 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 175 transitions, 2603 flow [2022-11-23 03:40:59,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:40:59,652 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:40:59,652 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:40:59,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-23 03:40:59,653 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:40:59,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:40:59,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1026550027, now seen corresponding path program 3 times [2022-11-23 03:40:59,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:40:59,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817864791] [2022-11-23 03:40:59,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:40:59,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:40:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:00,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:00,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:00,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817864791] [2022-11-23 03:41:00,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817864791] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:00,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:00,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:41:00,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117846217] [2022-11-23 03:41:00,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:00,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:41:00,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:00,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:41:00,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:01,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:41:01,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 175 transitions, 2603 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:01,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:01,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:41:01,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:02,638 INFO L130 PetriNetUnfolder]: 262/794 cut-off events. [2022-11-23 03:41:02,638 INFO L131 PetriNetUnfolder]: For 8321/8321 co-relation queries the response was YES. [2022-11-23 03:41:02,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5018 conditions, 794 events. 262/794 cut-off events. For 8321/8321 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5197 event pairs, 131 based on Foata normal form. 1/795 useless extension candidates. Maximal degree in co-relation 4701. Up to 609 conditions per place. [2022-11-23 03:41:02,648 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 146 selfloop transitions, 48 changer transitions 0/195 dead transitions. [2022-11-23 03:41:02,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 195 transitions, 3156 flow [2022-11-23 03:41:02,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:41:02,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-23 03:41:02,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1967 transitions. [2022-11-23 03:41:02,652 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4299453551912568 [2022-11-23 03:41:02,652 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1967 transitions. [2022-11-23 03:41:02,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1967 transitions. [2022-11-23 03:41:02,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:02,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1967 transitions. [2022-11-23 03:41:02,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 131.13333333333333) internal successors, (1967), 15 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:02,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:02,662 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:02,662 INFO L175 Difference]: Start difference. First operand has 203 places, 175 transitions, 2603 flow. Second operand 15 states and 1967 transitions. [2022-11-23 03:41:02,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 195 transitions, 3156 flow [2022-11-23 03:41:02,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 195 transitions, 3057 flow, removed 27 selfloop flow, removed 4 redundant places. [2022-11-23 03:41:02,708 INFO L231 Difference]: Finished difference. Result has 215 places, 178 transitions, 2662 flow [2022-11-23 03:41:02,709 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=2504, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2662, PETRI_PLACES=215, PETRI_TRANSITIONS=178} [2022-11-23 03:41:02,709 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 181 predicate places. [2022-11-23 03:41:02,709 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 178 transitions, 2662 flow [2022-11-23 03:41:02,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:02,710 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:02,710 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:02,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-23 03:41:02,710 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:02,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:02,711 INFO L85 PathProgramCache]: Analyzing trace with hash 560273379, now seen corresponding path program 4 times [2022-11-23 03:41:02,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:02,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316421803] [2022-11-23 03:41:02,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:02,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:03,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:03,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:03,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316421803] [2022-11-23 03:41:03,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316421803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:03,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:03,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 03:41:03,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220720602] [2022-11-23 03:41:03,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:03,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:41:03,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:03,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:41:03,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:41:04,970 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 305 [2022-11-23 03:41:04,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 178 transitions, 2662 flow. Second operand has 12 states, 12 states have (on average 129.25) internal successors, (1551), 12 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:04,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:04,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 305 [2022-11-23 03:41:04,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:05,922 INFO L130 PetriNetUnfolder]: 320/973 cut-off events. [2022-11-23 03:41:05,922 INFO L131 PetriNetUnfolder]: For 10402/10402 co-relation queries the response was YES. [2022-11-23 03:41:05,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6174 conditions, 973 events. 320/973 cut-off events. For 10402/10402 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6764 event pairs, 170 based on Foata normal form. 1/974 useless extension candidates. Maximal degree in co-relation 5830. Up to 723 conditions per place. [2022-11-23 03:41:05,930 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 206 selfloop transitions, 29 changer transitions 0/236 dead transitions. [2022-11-23 03:41:05,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 236 transitions, 3834 flow [2022-11-23 03:41:05,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:41:05,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-23 03:41:05,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1732 transitions. [2022-11-23 03:41:05,933 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4368221941992434 [2022-11-23 03:41:05,933 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1732 transitions. [2022-11-23 03:41:05,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1732 transitions. [2022-11-23 03:41:05,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:05,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1732 transitions. [2022-11-23 03:41:05,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 133.23076923076923) internal successors, (1732), 13 states have internal predecessors, (1732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:05,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:05,941 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:05,941 INFO L175 Difference]: Start difference. First operand has 215 places, 178 transitions, 2662 flow. Second operand 13 states and 1732 transitions. [2022-11-23 03:41:05,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 236 transitions, 3834 flow [2022-11-23 03:41:05,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 236 transitions, 3743 flow, removed 11 selfloop flow, removed 11 redundant places. [2022-11-23 03:41:05,995 INFO L231 Difference]: Finished difference. Result has 224 places, 198 transitions, 3018 flow [2022-11-23 03:41:05,996 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=2576, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3018, PETRI_PLACES=224, PETRI_TRANSITIONS=198} [2022-11-23 03:41:05,997 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 190 predicate places. [2022-11-23 03:41:05,997 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 198 transitions, 3018 flow [2022-11-23 03:41:05,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 129.25) internal successors, (1551), 12 states have internal predecessors, (1551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:05,997 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:05,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:05,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-23 03:41:05,998 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:05,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:05,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1242988766, now seen corresponding path program 7 times [2022-11-23 03:41:05,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:05,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322427130] [2022-11-23 03:41:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:05,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:06,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:06,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:06,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322427130] [2022-11-23 03:41:06,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322427130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:06,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:06,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 03:41:06,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679826328] [2022-11-23 03:41:06,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:06,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:41:06,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:06,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:41:06,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:41:07,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 305 [2022-11-23 03:41:07,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 198 transitions, 3018 flow. Second operand has 12 states, 12 states have (on average 127.25) internal successors, (1527), 12 states have internal predecessors, (1527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:07,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:07,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 305 [2022-11-23 03:41:07,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:09,190 INFO L130 PetriNetUnfolder]: 327/989 cut-off events. [2022-11-23 03:41:09,190 INFO L131 PetriNetUnfolder]: For 12018/12018 co-relation queries the response was YES. [2022-11-23 03:41:09,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6457 conditions, 989 events. 327/989 cut-off events. For 12018/12018 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 6945 event pairs, 138 based on Foata normal form. 5/994 useless extension candidates. Maximal degree in co-relation 6157. Up to 632 conditions per place. [2022-11-23 03:41:09,198 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 212 selfloop transitions, 39 changer transitions 0/252 dead transitions. [2022-11-23 03:41:09,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 252 transitions, 3998 flow [2022-11-23 03:41:09,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:41:09,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-23 03:41:09,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1976 transitions. [2022-11-23 03:41:09,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43191256830601094 [2022-11-23 03:41:09,201 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1976 transitions. [2022-11-23 03:41:09,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1976 transitions. [2022-11-23 03:41:09,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:09,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1976 transitions. [2022-11-23 03:41:09,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 131.73333333333332) internal successors, (1976), 15 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:09,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:09,210 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:09,211 INFO L175 Difference]: Start difference. First operand has 224 places, 198 transitions, 3018 flow. Second operand 15 states and 1976 transitions. [2022-11-23 03:41:09,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 252 transitions, 3998 flow [2022-11-23 03:41:09,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 252 transitions, 3905 flow, removed 44 selfloop flow, removed 2 redundant places. [2022-11-23 03:41:09,279 INFO L231 Difference]: Finished difference. Result has 238 places, 202 transitions, 3139 flow [2022-11-23 03:41:09,280 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=2910, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3139, PETRI_PLACES=238, PETRI_TRANSITIONS=202} [2022-11-23 03:41:09,280 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 204 predicate places. [2022-11-23 03:41:09,281 INFO L495 AbstractCegarLoop]: Abstraction has has 238 places, 202 transitions, 3139 flow [2022-11-23 03:41:09,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.25) internal successors, (1527), 12 states have internal predecessors, (1527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:09,281 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:09,281 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:09,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-23 03:41:09,282 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:09,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:09,282 INFO L85 PathProgramCache]: Analyzing trace with hash -42279287, now seen corresponding path program 5 times [2022-11-23 03:41:09,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:09,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848310374] [2022-11-23 03:41:09,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:09,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:10,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:10,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:10,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848310374] [2022-11-23 03:41:10,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848310374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:10,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:10,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-23 03:41:10,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013676981] [2022-11-23 03:41:10,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:10,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 03:41:10,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:10,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 03:41:10,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:41:11,920 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:41:11,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 202 transitions, 3139 flow. Second operand has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:11,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:11,922 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:41:11,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:13,413 INFO L130 PetriNetUnfolder]: 343/1036 cut-off events. [2022-11-23 03:41:13,413 INFO L131 PetriNetUnfolder]: For 13368/13368 co-relation queries the response was YES. [2022-11-23 03:41:13,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6832 conditions, 1036 events. 343/1036 cut-off events. For 13368/13368 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7330 event pairs, 179 based on Foata normal form. 1/1037 useless extension candidates. Maximal degree in co-relation 6419. Up to 803 conditions per place. [2022-11-23 03:41:13,426 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 151 selfloop transitions, 91 changer transitions 0/243 dead transitions. [2022-11-23 03:41:13,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 243 transitions, 4048 flow [2022-11-23 03:41:13,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 03:41:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-23 03:41:13,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2067 transitions. [2022-11-23 03:41:13,430 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4235655737704918 [2022-11-23 03:41:13,430 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2067 transitions. [2022-11-23 03:41:13,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2067 transitions. [2022-11-23 03:41:13,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:13,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2067 transitions. [2022-11-23 03:41:13,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 129.1875) internal successors, (2067), 16 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:13,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 305.0) internal successors, (5185), 17 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:13,440 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 305.0) internal successors, (5185), 17 states have internal predecessors, (5185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:13,440 INFO L175 Difference]: Start difference. First operand has 238 places, 202 transitions, 3139 flow. Second operand 16 states and 2067 transitions. [2022-11-23 03:41:13,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 243 transitions, 4048 flow [2022-11-23 03:41:13,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 243 transitions, 3986 flow, removed 9 selfloop flow, removed 9 redundant places. [2022-11-23 03:41:13,514 INFO L231 Difference]: Finished difference. Result has 249 places, 229 transitions, 3696 flow [2022-11-23 03:41:13,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=3077, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3696, PETRI_PLACES=249, PETRI_TRANSITIONS=229} [2022-11-23 03:41:13,514 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 215 predicate places. [2022-11-23 03:41:13,515 INFO L495 AbstractCegarLoop]: Abstraction has has 249 places, 229 transitions, 3696 flow [2022-11-23 03:41:13,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:13,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:13,515 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:13,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-23 03:41:13,516 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:13,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:13,516 INFO L85 PathProgramCache]: Analyzing trace with hash 280600852, now seen corresponding path program 8 times [2022-11-23 03:41:13,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:13,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474198003] [2022-11-23 03:41:13,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:13,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:14,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:14,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:14,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474198003] [2022-11-23 03:41:14,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474198003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:14,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:14,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 03:41:14,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50177697] [2022-11-23 03:41:14,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:14,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:41:14,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:14,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:41:14,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:41:15,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 305 [2022-11-23 03:41:15,425 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 229 transitions, 3696 flow. Second operand has 11 states, 11 states have (on average 136.36363636363637) internal successors, (1500), 11 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:15,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:15,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 305 [2022-11-23 03:41:15,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:16,408 INFO L130 PetriNetUnfolder]: 320/1038 cut-off events. [2022-11-23 03:41:16,408 INFO L131 PetriNetUnfolder]: For 14260/14262 co-relation queries the response was YES. [2022-11-23 03:41:16,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6924 conditions, 1038 events. 320/1038 cut-off events. For 14260/14262 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7797 event pairs, 77 based on Foata normal form. 11/1047 useless extension candidates. Maximal degree in co-relation 6659. Up to 309 conditions per place. [2022-11-23 03:41:16,421 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 161 selfloop transitions, 113 changer transitions 0/281 dead transitions. [2022-11-23 03:41:16,421 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 281 transitions, 4805 flow [2022-11-23 03:41:16,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:41:16,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-23 03:41:16,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1830 transitions. [2022-11-23 03:41:16,432 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46153846153846156 [2022-11-23 03:41:16,433 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1830 transitions. [2022-11-23 03:41:16,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1830 transitions. [2022-11-23 03:41:16,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:16,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1830 transitions. [2022-11-23 03:41:16,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 140.76923076923077) internal successors, (1830), 13 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:16,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:16,441 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:16,441 INFO L175 Difference]: Start difference. First operand has 249 places, 229 transitions, 3696 flow. Second operand 13 states and 1830 transitions. [2022-11-23 03:41:16,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 281 transitions, 4805 flow [2022-11-23 03:41:16,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 281 transitions, 4688 flow, removed 42 selfloop flow, removed 4 redundant places. [2022-11-23 03:41:16,536 INFO L231 Difference]: Finished difference. Result has 262 places, 248 transitions, 4358 flow [2022-11-23 03:41:16,536 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=3546, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4358, PETRI_PLACES=262, PETRI_TRANSITIONS=248} [2022-11-23 03:41:16,537 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 228 predicate places. [2022-11-23 03:41:16,538 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 248 transitions, 4358 flow [2022-11-23 03:41:16,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 136.36363636363637) internal successors, (1500), 11 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:16,538 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:16,538 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:16,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-23 03:41:16,539 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:16,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:16,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1863493361, now seen corresponding path program 6 times [2022-11-23 03:41:16,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:16,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573284767] [2022-11-23 03:41:16,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:16,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:17,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:17,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:17,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573284767] [2022-11-23 03:41:17,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573284767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:17,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:17,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:41:17,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679773134] [2022-11-23 03:41:17,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:17,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:41:17,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:17,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:41:17,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:18,971 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:41:18,972 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 248 transitions, 4358 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:18,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:18,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:41:18,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:20,533 INFO L130 PetriNetUnfolder]: 363/1103 cut-off events. [2022-11-23 03:41:20,533 INFO L131 PetriNetUnfolder]: For 18763/18763 co-relation queries the response was YES. [2022-11-23 03:41:20,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7940 conditions, 1103 events. 363/1103 cut-off events. For 18763/18763 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 8009 event pairs, 162 based on Foata normal form. 1/1104 useless extension candidates. Maximal degree in co-relation 7624. Up to 634 conditions per place. [2022-11-23 03:41:20,545 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 156 selfloop transitions, 115 changer transitions 0/272 dead transitions. [2022-11-23 03:41:20,545 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 272 transitions, 5138 flow [2022-11-23 03:41:20,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 03:41:20,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-23 03:41:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2747 transitions. [2022-11-23 03:41:20,562 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42888368462138954 [2022-11-23 03:41:20,562 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2747 transitions. [2022-11-23 03:41:20,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2747 transitions. [2022-11-23 03:41:20,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:20,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2747 transitions. [2022-11-23 03:41:20,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 130.8095238095238) internal successors, (2747), 21 states have internal predecessors, (2747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:20,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 305.0) internal successors, (6710), 22 states have internal predecessors, (6710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:20,582 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 305.0) internal successors, (6710), 22 states have internal predecessors, (6710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:20,583 INFO L175 Difference]: Start difference. First operand has 262 places, 248 transitions, 4358 flow. Second operand 21 states and 2747 transitions. [2022-11-23 03:41:20,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 272 transitions, 5138 flow [2022-11-23 03:41:20,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 272 transitions, 5009 flow, removed 45 selfloop flow, removed 6 redundant places. [2022-11-23 03:41:20,694 INFO L231 Difference]: Finished difference. Result has 278 places, 253 transitions, 4659 flow [2022-11-23 03:41:20,695 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4264, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4659, PETRI_PLACES=278, PETRI_TRANSITIONS=253} [2022-11-23 03:41:20,695 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 244 predicate places. [2022-11-23 03:41:20,696 INFO L495 AbstractCegarLoop]: Abstraction has has 278 places, 253 transitions, 4659 flow [2022-11-23 03:41:20,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:20,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:20,696 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:20,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-23 03:41:20,697 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:20,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:20,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1912176582, now seen corresponding path program 9 times [2022-11-23 03:41:20,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:20,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551111527] [2022-11-23 03:41:20,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:20,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:21,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:21,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:21,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551111527] [2022-11-23 03:41:21,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551111527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:21,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:21,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:41:21,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181061159] [2022-11-23 03:41:21,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:21,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:41:21,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:21,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:41:21,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:22,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:41:22,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 253 transitions, 4659 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:22,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:22,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:41:22,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:23,856 INFO L130 PetriNetUnfolder]: 360/1082 cut-off events. [2022-11-23 03:41:23,856 INFO L131 PetriNetUnfolder]: For 18189/18189 co-relation queries the response was YES. [2022-11-23 03:41:23,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7965 conditions, 1082 events. 360/1082 cut-off events. For 18189/18189 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7796 event pairs, 165 based on Foata normal form. 5/1087 useless extension candidates. Maximal degree in co-relation 7586. Up to 836 conditions per place. [2022-11-23 03:41:23,869 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 228 selfloop transitions, 39 changer transitions 0/268 dead transitions. [2022-11-23 03:41:23,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 268 transitions, 5288 flow [2022-11-23 03:41:23,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:41:23,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-23 03:41:23,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1426 transitions. [2022-11-23 03:41:23,872 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4250372578241431 [2022-11-23 03:41:23,872 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1426 transitions. [2022-11-23 03:41:23,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1426 transitions. [2022-11-23 03:41:23,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:23,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1426 transitions. [2022-11-23 03:41:23,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.63636363636363) internal successors, (1426), 11 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:23,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:23,878 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 305.0) internal successors, (3660), 12 states have internal predecessors, (3660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:23,879 INFO L175 Difference]: Start difference. First operand has 278 places, 253 transitions, 4659 flow. Second operand 11 states and 1426 transitions. [2022-11-23 03:41:23,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 268 transitions, 5288 flow [2022-11-23 03:41:23,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 268 transitions, 5079 flow, removed 34 selfloop flow, removed 14 redundant places. [2022-11-23 03:41:23,996 INFO L231 Difference]: Finished difference. Result has 275 places, 251 transitions, 4562 flow [2022-11-23 03:41:23,997 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4391, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4562, PETRI_PLACES=275, PETRI_TRANSITIONS=251} [2022-11-23 03:41:23,997 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 241 predicate places. [2022-11-23 03:41:23,997 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 251 transitions, 4562 flow [2022-11-23 03:41:23,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:23,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:23,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:23,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-23 03:41:23,998 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:23,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:23,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2067836591, now seen corresponding path program 7 times [2022-11-23 03:41:23,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:23,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633448659] [2022-11-23 03:41:23,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:23,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:25,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:25,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633448659] [2022-11-23 03:41:25,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633448659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:25,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:25,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-23 03:41:25,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242834906] [2022-11-23 03:41:25,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:25,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 03:41:25,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:25,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 03:41:25,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:41:26,532 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:41:26,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 251 transitions, 4562 flow. Second operand has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:26,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:26,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:41:26,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:27,624 INFO L130 PetriNetUnfolder]: 359/1088 cut-off events. [2022-11-23 03:41:27,625 INFO L131 PetriNetUnfolder]: For 18369/18369 co-relation queries the response was YES. [2022-11-23 03:41:27,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7943 conditions, 1088 events. 359/1088 cut-off events. For 18369/18369 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7869 event pairs, 190 based on Foata normal form. 1/1089 useless extension candidates. Maximal degree in co-relation 7618. Up to 844 conditions per place. [2022-11-23 03:41:27,634 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 171 selfloop transitions, 87 changer transitions 0/259 dead transitions. [2022-11-23 03:41:27,634 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 259 transitions, 5107 flow [2022-11-23 03:41:27,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:41:27,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-23 03:41:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1553 transitions. [2022-11-23 03:41:27,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4243169398907104 [2022-11-23 03:41:27,637 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1553 transitions. [2022-11-23 03:41:27,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1553 transitions. [2022-11-23 03:41:27,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:27,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1553 transitions. [2022-11-23 03:41:27,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 129.41666666666666) internal successors, (1553), 12 states have internal predecessors, (1553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:27,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:27,641 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:27,641 INFO L175 Difference]: Start difference. First operand has 275 places, 251 transitions, 4562 flow. Second operand 12 states and 1553 transitions. [2022-11-23 03:41:27,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 259 transitions, 5107 flow [2022-11-23 03:41:27,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 259 transitions, 5054 flow, removed 12 selfloop flow, removed 6 redundant places. [2022-11-23 03:41:27,717 INFO L231 Difference]: Finished difference. Result has 281 places, 251 transitions, 4694 flow [2022-11-23 03:41:27,718 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4500, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4694, PETRI_PLACES=281, PETRI_TRANSITIONS=251} [2022-11-23 03:41:27,718 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 247 predicate places. [2022-11-23 03:41:27,718 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 251 transitions, 4694 flow [2022-11-23 03:41:27,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:27,718 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:27,718 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:27,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-23 03:41:27,719 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:27,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:27,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1904250564, now seen corresponding path program 10 times [2022-11-23 03:41:27,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:27,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563467916] [2022-11-23 03:41:27,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:27,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:28,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:28,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:28,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563467916] [2022-11-23 03:41:28,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563467916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:28,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:28,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:41:28,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126408114] [2022-11-23 03:41:28,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:28,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:41:28,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:28,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:41:28,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:29,981 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:41:29,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 251 transitions, 4694 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:29,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:29,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:41:29,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:30,883 INFO L130 PetriNetUnfolder]: 355/1065 cut-off events. [2022-11-23 03:41:30,883 INFO L131 PetriNetUnfolder]: For 18687/18687 co-relation queries the response was YES. [2022-11-23 03:41:30,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7912 conditions, 1065 events. 355/1065 cut-off events. For 18687/18687 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7648 event pairs, 117 based on Foata normal form. 6/1071 useless extension candidates. Maximal degree in co-relation 7631. Up to 540 conditions per place. [2022-11-23 03:41:30,892 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 170 selfloop transitions, 97 changer transitions 0/268 dead transitions. [2022-11-23 03:41:30,892 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 268 transitions, 5237 flow [2022-11-23 03:41:30,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:41:30,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-23 03:41:30,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1689 transitions. [2022-11-23 03:41:30,902 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42597730138713746 [2022-11-23 03:41:30,903 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1689 transitions. [2022-11-23 03:41:30,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1689 transitions. [2022-11-23 03:41:30,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:30,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1689 transitions. [2022-11-23 03:41:30,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 129.92307692307693) internal successors, (1689), 13 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:30,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:30,910 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:30,910 INFO L175 Difference]: Start difference. First operand has 281 places, 251 transitions, 4694 flow. Second operand 13 states and 1689 transitions. [2022-11-23 03:41:30,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 268 transitions, 5237 flow [2022-11-23 03:41:31,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 268 transitions, 5105 flow, removed 14 selfloop flow, removed 11 redundant places. [2022-11-23 03:41:31,064 INFO L231 Difference]: Finished difference. Result has 280 places, 245 transitions, 4654 flow [2022-11-23 03:41:31,064 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4460, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=97, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4654, PETRI_PLACES=280, PETRI_TRANSITIONS=245} [2022-11-23 03:41:31,065 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 246 predicate places. [2022-11-23 03:41:31,065 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 245 transitions, 4654 flow [2022-11-23 03:41:31,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:31,065 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:31,065 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:31,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-23 03:41:31,065 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:31,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:31,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1797175945, now seen corresponding path program 8 times [2022-11-23 03:41:31,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:31,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791179897] [2022-11-23 03:41:31,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:31,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:31,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:31,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:31,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:31,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791179897] [2022-11-23 03:41:31,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791179897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:31,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:31,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-23 03:41:31,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759283805] [2022-11-23 03:41:31,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:31,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 03:41:31,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:31,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 03:41:31,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:41:33,469 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:41:33,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 245 transitions, 4654 flow. Second operand has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:33,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:33,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:41:33,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:34,480 INFO L130 PetriNetUnfolder]: 354/1069 cut-off events. [2022-11-23 03:41:34,480 INFO L131 PetriNetUnfolder]: For 19203/19203 co-relation queries the response was YES. [2022-11-23 03:41:34,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7861 conditions, 1069 events. 354/1069 cut-off events. For 19203/19203 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7655 event pairs, 193 based on Foata normal form. 1/1070 useless extension candidates. Maximal degree in co-relation 7583. Up to 866 conditions per place. [2022-11-23 03:41:34,489 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 178 selfloop transitions, 74 changer transitions 0/253 dead transitions. [2022-11-23 03:41:34,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 253 transitions, 5187 flow [2022-11-23 03:41:34,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:41:34,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-23 03:41:34,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1552 transitions. [2022-11-23 03:41:34,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4240437158469945 [2022-11-23 03:41:34,491 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1552 transitions. [2022-11-23 03:41:34,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1552 transitions. [2022-11-23 03:41:34,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:34,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1552 transitions. [2022-11-23 03:41:34,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 129.33333333333334) internal successors, (1552), 12 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:34,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:34,497 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:34,497 INFO L175 Difference]: Start difference. First operand has 280 places, 245 transitions, 4654 flow. Second operand 12 states and 1552 transitions. [2022-11-23 03:41:34,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 253 transitions, 5187 flow [2022-11-23 03:41:34,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 253 transitions, 5017 flow, removed 5 selfloop flow, removed 8 redundant places. [2022-11-23 03:41:34,565 INFO L231 Difference]: Finished difference. Result has 284 places, 245 transitions, 4642 flow [2022-11-23 03:41:34,565 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4476, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4642, PETRI_PLACES=284, PETRI_TRANSITIONS=245} [2022-11-23 03:41:34,565 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 250 predicate places. [2022-11-23 03:41:34,566 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 245 transitions, 4642 flow [2022-11-23 03:41:34,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:34,566 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:34,566 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:34,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-23 03:41:34,567 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:34,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:34,567 INFO L85 PathProgramCache]: Analyzing trace with hash -337587061, now seen corresponding path program 9 times [2022-11-23 03:41:34,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:34,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027130389] [2022-11-23 03:41:34,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:34,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:35,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:35,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:35,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027130389] [2022-11-23 03:41:35,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027130389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:35,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:35,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:41:35,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404782857] [2022-11-23 03:41:35,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:35,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:41:35,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:35,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:41:35,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:36,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:41:36,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 245 transitions, 4642 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:36,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:36,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:41:36,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:37,962 INFO L130 PetriNetUnfolder]: 361/1089 cut-off events. [2022-11-23 03:41:37,962 INFO L131 PetriNetUnfolder]: For 18557/18557 co-relation queries the response was YES. [2022-11-23 03:41:37,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8004 conditions, 1089 events. 361/1089 cut-off events. For 18557/18557 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 7824 event pairs, 191 based on Foata normal form. 1/1090 useless extension candidates. Maximal degree in co-relation 7724. Up to 823 conditions per place. [2022-11-23 03:41:37,971 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 222 selfloop transitions, 50 changer transitions 0/273 dead transitions. [2022-11-23 03:41:37,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 273 transitions, 5450 flow [2022-11-23 03:41:37,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 03:41:37,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-23 03:41:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2230 transitions. [2022-11-23 03:41:37,974 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43008678881388623 [2022-11-23 03:41:37,974 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2230 transitions. [2022-11-23 03:41:37,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2230 transitions. [2022-11-23 03:41:37,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:37,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2230 transitions. [2022-11-23 03:41:37,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 131.1764705882353) internal successors, (2230), 17 states have internal predecessors, (2230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:37,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:37,983 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:37,983 INFO L175 Difference]: Start difference. First operand has 284 places, 245 transitions, 4642 flow. Second operand 17 states and 2230 transitions. [2022-11-23 03:41:37,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 273 transitions, 5450 flow [2022-11-23 03:41:38,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 273 transitions, 5262 flow, removed 2 selfloop flow, removed 10 redundant places. [2022-11-23 03:41:38,081 INFO L231 Difference]: Finished difference. Result has 293 places, 252 transitions, 4711 flow [2022-11-23 03:41:38,081 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4458, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=4711, PETRI_PLACES=293, PETRI_TRANSITIONS=252} [2022-11-23 03:41:38,081 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 259 predicate places. [2022-11-23 03:41:38,081 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 252 transitions, 4711 flow [2022-11-23 03:41:38,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:38,082 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:38,082 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:38,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-23 03:41:38,082 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:38,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:38,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1384771692, now seen corresponding path program 11 times [2022-11-23 03:41:38,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:38,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811827535] [2022-11-23 03:41:38,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:38,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:38,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:38,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:38,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:38,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811827535] [2022-11-23 03:41:38,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811827535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:38,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:38,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:41:38,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899717525] [2022-11-23 03:41:38,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:38,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:41:38,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:38,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:41:38,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:40,332 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:41:40,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 252 transitions, 4711 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:40,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:40,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:41:40,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:41,286 INFO L130 PetriNetUnfolder]: 370/1111 cut-off events. [2022-11-23 03:41:41,286 INFO L131 PetriNetUnfolder]: For 19239/19239 co-relation queries the response was YES. [2022-11-23 03:41:41,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8235 conditions, 1111 events. 370/1111 cut-off events. For 19239/19239 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8091 event pairs, 147 based on Foata normal form. 5/1116 useless extension candidates. Maximal degree in co-relation 7960. Up to 726 conditions per place. [2022-11-23 03:41:41,299 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 233 selfloop transitions, 46 changer transitions 0/280 dead transitions. [2022-11-23 03:41:41,299 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 280 transitions, 5503 flow [2022-11-23 03:41:41,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:41:41,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-23 03:41:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1689 transitions. [2022-11-23 03:41:41,303 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42597730138713746 [2022-11-23 03:41:41,303 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1689 transitions. [2022-11-23 03:41:41,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1689 transitions. [2022-11-23 03:41:41,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:41,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1689 transitions. [2022-11-23 03:41:41,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 129.92307692307693) internal successors, (1689), 13 states have internal predecessors, (1689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:41,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:41,309 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:41,310 INFO L175 Difference]: Start difference. First operand has 293 places, 252 transitions, 4711 flow. Second operand 13 states and 1689 transitions. [2022-11-23 03:41:41,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 280 transitions, 5503 flow [2022-11-23 03:41:41,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 280 transitions, 5276 flow, removed 32 selfloop flow, removed 17 redundant places. [2022-11-23 03:41:41,416 INFO L231 Difference]: Finished difference. Result has 291 places, 255 transitions, 4659 flow [2022-11-23 03:41:41,417 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4495, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4659, PETRI_PLACES=291, PETRI_TRANSITIONS=255} [2022-11-23 03:41:41,419 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 257 predicate places. [2022-11-23 03:41:41,420 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 255 transitions, 4659 flow [2022-11-23 03:41:41,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:41,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:41,420 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:41,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-23 03:41:41,421 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:41,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1350993513, now seen corresponding path program 10 times [2022-11-23 03:41:41,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:41,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402567302] [2022-11-23 03:41:41,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:41,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:42,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:42,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:42,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402567302] [2022-11-23 03:41:42,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402567302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:42,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:42,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-23 03:41:42,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054814993] [2022-11-23 03:41:42,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:42,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 03:41:42,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:42,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 03:41:42,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:41:43,917 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:41:43,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 255 transitions, 4659 flow. Second operand has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:43,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:43,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:41:43,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:45,315 INFO L130 PetriNetUnfolder]: 380/1139 cut-off events. [2022-11-23 03:41:45,315 INFO L131 PetriNetUnfolder]: For 20669/20669 co-relation queries the response was YES. [2022-11-23 03:41:45,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8378 conditions, 1139 events. 380/1139 cut-off events. For 20669/20669 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8349 event pairs, 123 based on Foata normal form. 6/1145 useless extension candidates. Maximal degree in co-relation 8104. Up to 559 conditions per place. [2022-11-23 03:41:45,325 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 133 selfloop transitions, 157 changer transitions 0/291 dead transitions. [2022-11-23 03:41:45,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 291 transitions, 5719 flow [2022-11-23 03:41:45,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 03:41:45,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-23 03:41:45,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2322 transitions. [2022-11-23 03:41:45,363 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42295081967213116 [2022-11-23 03:41:45,363 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2322 transitions. [2022-11-23 03:41:45,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2322 transitions. [2022-11-23 03:41:45,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:45,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2322 transitions. [2022-11-23 03:41:45,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 129.0) internal successors, (2322), 18 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:45,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:45,372 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:45,372 INFO L175 Difference]: Start difference. First operand has 291 places, 255 transitions, 4659 flow. Second operand 18 states and 2322 transitions. [2022-11-23 03:41:45,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 291 transitions, 5719 flow [2022-11-23 03:41:45,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 291 transitions, 5652 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-23 03:41:45,446 INFO L231 Difference]: Finished difference. Result has 304 places, 272 transitions, 5313 flow [2022-11-23 03:41:45,446 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4596, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=143, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5313, PETRI_PLACES=304, PETRI_TRANSITIONS=272} [2022-11-23 03:41:45,447 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 270 predicate places. [2022-11-23 03:41:45,447 INFO L495 AbstractCegarLoop]: Abstraction has has 304 places, 272 transitions, 5313 flow [2022-11-23 03:41:45,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:45,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:45,448 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:45,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-23 03:41:45,448 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:45,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:45,449 INFO L85 PathProgramCache]: Analyzing trace with hash 698743592, now seen corresponding path program 12 times [2022-11-23 03:41:45,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:45,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823353457] [2022-11-23 03:41:45,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:45,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:46,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:46,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:46,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823353457] [2022-11-23 03:41:46,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823353457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:46,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:46,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:41:46,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867155119] [2022-11-23 03:41:46,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:46,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:41:46,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:46,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:41:46,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:47,443 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:41:47,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 272 transitions, 5313 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:47,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:47,444 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:41:47,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:48,300 INFO L130 PetriNetUnfolder]: 387/1172 cut-off events. [2022-11-23 03:41:48,300 INFO L131 PetriNetUnfolder]: For 23583/23583 co-relation queries the response was YES. [2022-11-23 03:41:48,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9066 conditions, 1172 events. 387/1172 cut-off events. For 23583/23583 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8726 event pairs, 90 based on Foata normal form. 11/1183 useless extension candidates. Maximal degree in co-relation 8758. Up to 513 conditions per place. [2022-11-23 03:41:48,310 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 173 selfloop transitions, 117 changer transitions 0/291 dead transitions. [2022-11-23 03:41:48,310 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 291 transitions, 6032 flow [2022-11-23 03:41:48,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:41:48,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-23 03:41:48,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1558 transitions. [2022-11-23 03:41:48,312 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42568306010928963 [2022-11-23 03:41:48,312 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1558 transitions. [2022-11-23 03:41:48,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1558 transitions. [2022-11-23 03:41:48,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:48,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1558 transitions. [2022-11-23 03:41:48,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 129.83333333333334) internal successors, (1558), 12 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:48,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:48,317 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:48,317 INFO L175 Difference]: Start difference. First operand has 304 places, 272 transitions, 5313 flow. Second operand 12 states and 1558 transitions. [2022-11-23 03:41:48,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 291 transitions, 6032 flow [2022-11-23 03:41:48,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 304 places, 291 transitions, 5743 flow, removed 61 selfloop flow, removed 11 redundant places. [2022-11-23 03:41:48,419 INFO L231 Difference]: Finished difference. Result has 306 places, 271 transitions, 5363 flow [2022-11-23 03:41:48,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4984, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5363, PETRI_PLACES=306, PETRI_TRANSITIONS=271} [2022-11-23 03:41:48,420 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 272 predicate places. [2022-11-23 03:41:48,421 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 271 transitions, 5363 flow [2022-11-23 03:41:48,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:48,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:48,421 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:48,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-23 03:41:48,422 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:48,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:48,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1966200771, now seen corresponding path program 11 times [2022-11-23 03:41:48,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:48,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759413140] [2022-11-23 03:41:48,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:48,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:49,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:49,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:49,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759413140] [2022-11-23 03:41:49,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759413140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:49,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:49,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-23 03:41:49,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063153237] [2022-11-23 03:41:49,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:49,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 03:41:49,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:49,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 03:41:49,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:41:50,627 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:41:50,628 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 271 transitions, 5363 flow. Second operand has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:50,629 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:50,629 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:41:50,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:51,859 INFO L130 PetriNetUnfolder]: 382/1161 cut-off events. [2022-11-23 03:41:51,859 INFO L131 PetriNetUnfolder]: For 23374/23374 co-relation queries the response was YES. [2022-11-23 03:41:51,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8954 conditions, 1161 events. 382/1161 cut-off events. For 23374/23374 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8603 event pairs, 99 based on Foata normal form. 5/1166 useless extension candidates. Maximal degree in co-relation 8636. Up to 650 conditions per place. [2022-11-23 03:41:51,868 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 137 selfloop transitions, 144 changer transitions 0/282 dead transitions. [2022-11-23 03:41:51,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 282 transitions, 5936 flow [2022-11-23 03:41:51,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:41:51,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 03:41:51,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1811 transitions. [2022-11-23 03:41:51,871 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4241217798594848 [2022-11-23 03:41:51,871 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1811 transitions. [2022-11-23 03:41:51,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1811 transitions. [2022-11-23 03:41:51,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:51,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1811 transitions. [2022-11-23 03:41:51,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 129.35714285714286) internal successors, (1811), 14 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:51,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:51,876 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:51,876 INFO L175 Difference]: Start difference. First operand has 306 places, 271 transitions, 5363 flow. Second operand 14 states and 1811 transitions. [2022-11-23 03:41:51,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 282 transitions, 5936 flow [2022-11-23 03:41:51,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 282 transitions, 5736 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-11-23 03:41:51,975 INFO L231 Difference]: Finished difference. Result has 310 places, 270 transitions, 5443 flow [2022-11-23 03:41:51,976 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=5102, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5443, PETRI_PLACES=310, PETRI_TRANSITIONS=270} [2022-11-23 03:41:51,976 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 276 predicate places. [2022-11-23 03:41:51,976 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 270 transitions, 5443 flow [2022-11-23 03:41:51,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 126.0) internal successors, (1890), 15 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:51,976 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:51,977 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:51,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-23 03:41:51,977 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:51,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:51,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1691825582, now seen corresponding path program 13 times [2022-11-23 03:41:51,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:51,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532776099] [2022-11-23 03:41:51,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:51,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:52,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:52,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:52,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532776099] [2022-11-23 03:41:52,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532776099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:52,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:52,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:41:52,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667470798] [2022-11-23 03:41:52,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:52,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:41:52,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:52,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:41:52,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:54,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:41:54,151 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 270 transitions, 5443 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:54,151 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:54,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:41:54,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:55,251 INFO L130 PetriNetUnfolder]: 386/1172 cut-off events. [2022-11-23 03:41:55,252 INFO L131 PetriNetUnfolder]: For 24887/24887 co-relation queries the response was YES. [2022-11-23 03:41:55,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9228 conditions, 1172 events. 386/1172 cut-off events. For 24887/24887 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 8744 event pairs, 91 based on Foata normal form. 10/1182 useless extension candidates. Maximal degree in co-relation 8939. Up to 445 conditions per place. [2022-11-23 03:41:55,260 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 177 selfloop transitions, 120 changer transitions 0/298 dead transitions. [2022-11-23 03:41:55,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 298 transitions, 6218 flow [2022-11-23 03:41:55,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:41:55,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 03:41:55,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1820 transitions. [2022-11-23 03:41:55,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4262295081967213 [2022-11-23 03:41:55,263 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1820 transitions. [2022-11-23 03:41:55,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1820 transitions. [2022-11-23 03:41:55,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:55,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1820 transitions. [2022-11-23 03:41:55,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 130.0) internal successors, (1820), 14 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:55,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:55,269 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:55,269 INFO L175 Difference]: Start difference. First operand has 310 places, 270 transitions, 5443 flow. Second operand 14 states and 1820 transitions. [2022-11-23 03:41:55,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 298 transitions, 6218 flow [2022-11-23 03:41:55,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 298 transitions, 5871 flow, removed 9 selfloop flow, removed 15 redundant places. [2022-11-23 03:41:55,404 INFO L231 Difference]: Finished difference. Result has 311 places, 270 transitions, 5459 flow [2022-11-23 03:41:55,404 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=5068, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=5459, PETRI_PLACES=311, PETRI_TRANSITIONS=270} [2022-11-23 03:41:55,404 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 277 predicate places. [2022-11-23 03:41:55,405 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 270 transitions, 5459 flow [2022-11-23 03:41:55,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:55,405 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:55,405 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:55,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-23 03:41:55,405 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:55,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:55,406 INFO L85 PathProgramCache]: Analyzing trace with hash 661548177, now seen corresponding path program 12 times [2022-11-23 03:41:55,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:55,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990356435] [2022-11-23 03:41:55,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:55,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:56,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:56,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:56,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990356435] [2022-11-23 03:41:56,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990356435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:56,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:56,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:41:56,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755265957] [2022-11-23 03:41:56,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:56,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:41:56,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:56,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:41:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:41:57,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:41:57,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 270 transitions, 5459 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:57,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:41:57,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:41:57,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:41:58,657 INFO L130 PetriNetUnfolder]: 389/1179 cut-off events. [2022-11-23 03:41:58,657 INFO L131 PetriNetUnfolder]: For 26137/26137 co-relation queries the response was YES. [2022-11-23 03:41:58,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9300 conditions, 1179 events. 389/1179 cut-off events. For 26137/26137 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 8801 event pairs, 90 based on Foata normal form. 2/1181 useless extension candidates. Maximal degree in co-relation 8972. Up to 530 conditions per place. [2022-11-23 03:41:58,667 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 101 selfloop transitions, 190 changer transitions 0/292 dead transitions. [2022-11-23 03:41:58,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 292 transitions, 6337 flow [2022-11-23 03:41:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 03:41:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-23 03:41:58,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2599 transitions. [2022-11-23 03:41:58,671 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4260655737704918 [2022-11-23 03:41:58,671 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2599 transitions. [2022-11-23 03:41:58,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2599 transitions. [2022-11-23 03:41:58,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:41:58,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2599 transitions. [2022-11-23 03:41:58,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 129.95) internal successors, (2599), 20 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:58,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 305.0) internal successors, (6405), 21 states have internal predecessors, (6405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:58,713 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 305.0) internal successors, (6405), 21 states have internal predecessors, (6405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:58,714 INFO L175 Difference]: Start difference. First operand has 311 places, 270 transitions, 5459 flow. Second operand 20 states and 2599 transitions. [2022-11-23 03:41:58,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 292 transitions, 6337 flow [2022-11-23 03:41:58,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 292 transitions, 6157 flow, removed 20 selfloop flow, removed 6 redundant places. [2022-11-23 03:41:58,813 INFO L231 Difference]: Finished difference. Result has 328 places, 280 transitions, 6051 flow [2022-11-23 03:41:58,813 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=5279, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=181, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6051, PETRI_PLACES=328, PETRI_TRANSITIONS=280} [2022-11-23 03:41:58,814 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 294 predicate places. [2022-11-23 03:41:58,814 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 280 transitions, 6051 flow [2022-11-23 03:41:58,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:41:58,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:41:58,814 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:41:58,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-23 03:41:58,814 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:41:58,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:41:58,815 INFO L85 PathProgramCache]: Analyzing trace with hash -732521772, now seen corresponding path program 14 times [2022-11-23 03:41:58,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:41:58,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116411749] [2022-11-23 03:41:58,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:41:58,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:41:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:41:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:41:59,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:41:59,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116411749] [2022-11-23 03:41:59,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116411749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:41:59,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:41:59,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:41:59,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339318024] [2022-11-23 03:41:59,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:41:59,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:41:59,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:41:59,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:41:59,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:42:00,882 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:42:00,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 280 transitions, 6051 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:00,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:00,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:42:00,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:02,210 INFO L130 PetriNetUnfolder]: 396/1204 cut-off events. [2022-11-23 03:42:02,210 INFO L131 PetriNetUnfolder]: For 28517/28517 co-relation queries the response was YES. [2022-11-23 03:42:02,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9886 conditions, 1204 events. 396/1204 cut-off events. For 28517/28517 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 9069 event pairs, 164 based on Foata normal form. 5/1206 useless extension candidates. Maximal degree in co-relation 9575. Up to 788 conditions per place. [2022-11-23 03:42:02,221 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 262 selfloop transitions, 54 changer transitions 0/317 dead transitions. [2022-11-23 03:42:02,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 317 transitions, 7037 flow [2022-11-23 03:42:02,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:42:02,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-23 03:42:02,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1955 transitions. [2022-11-23 03:42:02,224 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4273224043715847 [2022-11-23 03:42:02,224 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1955 transitions. [2022-11-23 03:42:02,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1955 transitions. [2022-11-23 03:42:02,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:02,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1955 transitions. [2022-11-23 03:42:02,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 130.33333333333334) internal successors, (1955), 15 states have internal predecessors, (1955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:02,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:02,231 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:02,232 INFO L175 Difference]: Start difference. First operand has 328 places, 280 transitions, 6051 flow. Second operand 15 states and 1955 transitions. [2022-11-23 03:42:02,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 317 transitions, 7037 flow [2022-11-23 03:42:02,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 317 transitions, 6851 flow, removed 24 selfloop flow, removed 12 redundant places. [2022-11-23 03:42:02,402 INFO L231 Difference]: Finished difference. Result has 335 places, 283 transitions, 6168 flow [2022-11-23 03:42:02,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=5847, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6168, PETRI_PLACES=335, PETRI_TRANSITIONS=283} [2022-11-23 03:42:02,403 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 301 predicate places. [2022-11-23 03:42:02,403 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 283 transitions, 6168 flow [2022-11-23 03:42:02,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:02,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:02,404 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:02,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-23 03:42:02,404 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:02,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:02,405 INFO L85 PathProgramCache]: Analyzing trace with hash 569493986, now seen corresponding path program 15 times [2022-11-23 03:42:02,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:02,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64222125] [2022-11-23 03:42:02,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:02,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:03,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:03,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:03,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64222125] [2022-11-23 03:42:03,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64222125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:03,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:03,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:42:03,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979588179] [2022-11-23 03:42:03,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:03,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:42:03,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:03,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:42:03,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:42:04,384 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 305 [2022-11-23 03:42:04,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 283 transitions, 6168 flow. Second operand has 14 states, 14 states have (on average 127.07142857142857) internal successors, (1779), 14 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:04,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:04,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 305 [2022-11-23 03:42:04,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:05,839 INFO L130 PetriNetUnfolder]: 416/1291 cut-off events. [2022-11-23 03:42:05,839 INFO L131 PetriNetUnfolder]: For 34333/34333 co-relation queries the response was YES. [2022-11-23 03:42:05,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10865 conditions, 1291 events. 416/1291 cut-off events. For 34333/34333 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10018 event pairs, 100 based on Foata normal form. 9/1297 useless extension candidates. Maximal degree in co-relation 10547. Up to 507 conditions per place. [2022-11-23 03:42:05,850 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 168 selfloop transitions, 146 changer transitions 0/315 dead transitions. [2022-11-23 03:42:05,850 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 315 transitions, 7323 flow [2022-11-23 03:42:05,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:42:05,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-23 03:42:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1958 transitions. [2022-11-23 03:42:05,853 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42797814207650275 [2022-11-23 03:42:05,853 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1958 transitions. [2022-11-23 03:42:05,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1958 transitions. [2022-11-23 03:42:05,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:05,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1958 transitions. [2022-11-23 03:42:05,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 130.53333333333333) internal successors, (1958), 15 states have internal predecessors, (1958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:05,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:05,858 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:05,858 INFO L175 Difference]: Start difference. First operand has 335 places, 283 transitions, 6168 flow. Second operand 15 states and 1958 transitions. [2022-11-23 03:42:05,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 315 transitions, 7323 flow [2022-11-23 03:42:05,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 315 transitions, 7159 flow, removed 29 selfloop flow, removed 7 redundant places. [2022-11-23 03:42:05,985 INFO L231 Difference]: Finished difference. Result has 348 places, 293 transitions, 6726 flow [2022-11-23 03:42:05,985 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=5979, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=6726, PETRI_PLACES=348, PETRI_TRANSITIONS=293} [2022-11-23 03:42:05,986 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 314 predicate places. [2022-11-23 03:42:05,986 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 293 transitions, 6726 flow [2022-11-23 03:42:05,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 127.07142857142857) internal successors, (1779), 14 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:05,986 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:05,986 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:05,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-23 03:42:05,986 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:05,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:05,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1384771691, now seen corresponding path program 13 times [2022-11-23 03:42:05,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:05,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499531518] [2022-11-23 03:42:05,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:05,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:06,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:06,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:06,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499531518] [2022-11-23 03:42:06,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499531518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:06,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:06,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:42:06,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335071105] [2022-11-23 03:42:06,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:06,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:42:06,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:06,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:42:06,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:42:07,745 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:42:07,747 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 293 transitions, 6726 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:07,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:07,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:42:07,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:08,675 INFO L130 PetriNetUnfolder]: 415/1291 cut-off events. [2022-11-23 03:42:08,675 INFO L131 PetriNetUnfolder]: For 35386/35386 co-relation queries the response was YES. [2022-11-23 03:42:08,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11504 conditions, 1291 events. 415/1291 cut-off events. For 35386/35386 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10029 event pairs, 245 based on Foata normal form. 1/1289 useless extension candidates. Maximal degree in co-relation 11120. Up to 967 conditions per place. [2022-11-23 03:42:08,686 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 257 selfloop transitions, 49 changer transitions 0/307 dead transitions. [2022-11-23 03:42:08,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 307 transitions, 7441 flow [2022-11-23 03:42:08,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:42:08,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 03:42:08,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1841 transitions. [2022-11-23 03:42:08,689 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4311475409836066 [2022-11-23 03:42:08,689 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1841 transitions. [2022-11-23 03:42:08,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1841 transitions. [2022-11-23 03:42:08,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:08,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1841 transitions. [2022-11-23 03:42:08,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 131.5) internal successors, (1841), 14 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:08,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:08,693 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:08,693 INFO L175 Difference]: Start difference. First operand has 348 places, 293 transitions, 6726 flow. Second operand 14 states and 1841 transitions. [2022-11-23 03:42:08,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 307 transitions, 7441 flow [2022-11-23 03:42:08,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 307 transitions, 7222 flow, removed 41 selfloop flow, removed 6 redundant places. [2022-11-23 03:42:08,847 INFO L231 Difference]: Finished difference. Result has 356 places, 293 transitions, 6629 flow [2022-11-23 03:42:08,847 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6500, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6629, PETRI_PLACES=356, PETRI_TRANSITIONS=293} [2022-11-23 03:42:08,848 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 322 predicate places. [2022-11-23 03:42:08,848 INFO L495 AbstractCegarLoop]: Abstraction has has 356 places, 293 transitions, 6629 flow [2022-11-23 03:42:08,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:08,848 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:08,848 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:08,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-23 03:42:08,848 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:08,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:08,849 INFO L85 PathProgramCache]: Analyzing trace with hash -429641252, now seen corresponding path program 16 times [2022-11-23 03:42:08,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:08,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716812622] [2022-11-23 03:42:08,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:08,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:09,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:09,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:09,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716812622] [2022-11-23 03:42:09,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716812622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:09,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:09,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:42:09,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218264871] [2022-11-23 03:42:09,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:09,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:42:09,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:09,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:42:09,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:42:10,975 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:42:10,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 293 transitions, 6629 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:10,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:10,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:42:10,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:12,222 INFO L130 PetriNetUnfolder]: 412/1280 cut-off events. [2022-11-23 03:42:12,222 INFO L131 PetriNetUnfolder]: For 33935/33935 co-relation queries the response was YES. [2022-11-23 03:42:12,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11282 conditions, 1280 events. 412/1280 cut-off events. For 33935/33935 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 9897 event pairs, 272 based on Foata normal form. 5/1282 useless extension candidates. Maximal degree in co-relation 10996. Up to 988 conditions per place. [2022-11-23 03:42:12,235 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 284 selfloop transitions, 28 changer transitions 0/313 dead transitions. [2022-11-23 03:42:12,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 313 transitions, 7366 flow [2022-11-23 03:42:12,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:42:12,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-23 03:42:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1569 transitions. [2022-11-23 03:42:12,238 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42868852459016393 [2022-11-23 03:42:12,239 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1569 transitions. [2022-11-23 03:42:12,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1569 transitions. [2022-11-23 03:42:12,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:12,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1569 transitions. [2022-11-23 03:42:12,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 130.75) internal successors, (1569), 12 states have internal predecessors, (1569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:12,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:12,246 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:12,246 INFO L175 Difference]: Start difference. First operand has 356 places, 293 transitions, 6629 flow. Second operand 12 states and 1569 transitions. [2022-11-23 03:42:12,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 313 transitions, 7366 flow [2022-11-23 03:42:12,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 313 transitions, 7210 flow, removed 20 selfloop flow, removed 14 redundant places. [2022-11-23 03:42:12,408 INFO L231 Difference]: Finished difference. Result has 351 places, 290 transitions, 6508 flow [2022-11-23 03:42:12,409 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6406, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6508, PETRI_PLACES=351, PETRI_TRANSITIONS=290} [2022-11-23 03:42:12,409 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 317 predicate places. [2022-11-23 03:42:12,410 INFO L495 AbstractCegarLoop]: Abstraction has has 351 places, 290 transitions, 6508 flow [2022-11-23 03:42:12,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:12,410 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:12,410 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:12,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-23 03:42:12,411 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:12,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:12,411 INFO L85 PathProgramCache]: Analyzing trace with hash -82755934, now seen corresponding path program 17 times [2022-11-23 03:42:12,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:12,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916578072] [2022-11-23 03:42:12,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:12,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:13,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:13,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:13,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916578072] [2022-11-23 03:42:13,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916578072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:13,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:13,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:42:13,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45373612] [2022-11-23 03:42:13,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:13,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:42:13,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:13,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:42:13,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:42:14,520 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 305 [2022-11-23 03:42:14,520 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 290 transitions, 6508 flow. Second operand has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:14,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:14,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 305 [2022-11-23 03:42:14,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:15,556 INFO L130 PetriNetUnfolder]: 416/1295 cut-off events. [2022-11-23 03:42:15,556 INFO L131 PetriNetUnfolder]: For 34227/34227 co-relation queries the response was YES. [2022-11-23 03:42:15,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11360 conditions, 1295 events. 416/1295 cut-off events. For 34227/34227 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10086 event pairs, 99 based on Foata normal form. 5/1297 useless extension candidates. Maximal degree in co-relation 11076. Up to 535 conditions per place. [2022-11-23 03:42:15,569 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 174 selfloop transitions, 130 changer transitions 0/305 dead transitions. [2022-11-23 03:42:15,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 305 transitions, 7218 flow [2022-11-23 03:42:15,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:42:15,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-23 03:42:15,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1552 transitions. [2022-11-23 03:42:15,571 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4240437158469945 [2022-11-23 03:42:15,572 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1552 transitions. [2022-11-23 03:42:15,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1552 transitions. [2022-11-23 03:42:15,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:15,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1552 transitions. [2022-11-23 03:42:15,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 129.33333333333334) internal successors, (1552), 12 states have internal predecessors, (1552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:15,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:15,578 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:15,578 INFO L175 Difference]: Start difference. First operand has 351 places, 290 transitions, 6508 flow. Second operand 12 states and 1552 transitions. [2022-11-23 03:42:15,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 305 transitions, 7218 flow [2022-11-23 03:42:15,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 305 transitions, 7048 flow, removed 35 selfloop flow, removed 10 redundant places. [2022-11-23 03:42:15,775 INFO L231 Difference]: Finished difference. Result has 354 places, 289 transitions, 6694 flow [2022-11-23 03:42:15,775 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6311, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=129, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6694, PETRI_PLACES=354, PETRI_TRANSITIONS=289} [2022-11-23 03:42:15,775 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 320 predicate places. [2022-11-23 03:42:15,775 INFO L495 AbstractCegarLoop]: Abstraction has has 354 places, 289 transitions, 6694 flow [2022-11-23 03:42:15,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 126.15384615384616) internal successors, (1640), 13 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:15,776 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:15,776 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:15,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-23 03:42:15,776 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:15,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:15,777 INFO L85 PathProgramCache]: Analyzing trace with hash -82755933, now seen corresponding path program 14 times [2022-11-23 03:42:15,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:15,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359745418] [2022-11-23 03:42:15,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:15,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:16,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:16,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:16,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359745418] [2022-11-23 03:42:16,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359745418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:16,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:16,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 03:42:16,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553484122] [2022-11-23 03:42:16,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:16,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:42:16,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:16,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:42:16,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:42:17,816 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:42:17,817 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 289 transitions, 6694 flow. Second operand has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:17,817 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:17,817 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:42:17,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:19,008 INFO L130 PetriNetUnfolder]: 415/1291 cut-off events. [2022-11-23 03:42:19,009 INFO L131 PetriNetUnfolder]: For 36219/36219 co-relation queries the response was YES. [2022-11-23 03:42:19,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11300 conditions, 1291 events. 415/1291 cut-off events. For 36219/36219 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10006 event pairs, 119 based on Foata normal form. 1/1292 useless extension candidates. Maximal degree in co-relation 11006. Up to 757 conditions per place. [2022-11-23 03:42:19,020 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 142 selfloop transitions, 149 changer transitions 0/292 dead transitions. [2022-11-23 03:42:19,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 292 transitions, 7247 flow [2022-11-23 03:42:19,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:42:19,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 03:42:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1822 transitions. [2022-11-23 03:42:19,022 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42669789227166277 [2022-11-23 03:42:19,023 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1822 transitions. [2022-11-23 03:42:19,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1822 transitions. [2022-11-23 03:42:19,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:19,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1822 transitions. [2022-11-23 03:42:19,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 130.14285714285714) internal successors, (1822), 14 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:19,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:19,030 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:19,030 INFO L175 Difference]: Start difference. First operand has 354 places, 289 transitions, 6694 flow. Second operand 14 states and 1822 transitions. [2022-11-23 03:42:19,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 292 transitions, 7247 flow [2022-11-23 03:42:19,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 292 transitions, 6986 flow, removed 3 selfloop flow, removed 11 redundant places. [2022-11-23 03:42:19,184 INFO L231 Difference]: Finished difference. Result has 357 places, 288 transitions, 6706 flow [2022-11-23 03:42:19,184 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6377, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=6706, PETRI_PLACES=357, PETRI_TRANSITIONS=288} [2022-11-23 03:42:19,185 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 323 predicate places. [2022-11-23 03:42:19,185 INFO L495 AbstractCegarLoop]: Abstraction has has 357 places, 288 transitions, 6706 flow [2022-11-23 03:42:19,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 128.15384615384616) internal successors, (1666), 13 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:19,185 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:19,185 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:19,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-23 03:42:19,185 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:19,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:19,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1902149556, now seen corresponding path program 1 times [2022-11-23 03:42:19,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:19,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648857461] [2022-11-23 03:42:19,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:19,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:20,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:20,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:20,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648857461] [2022-11-23 03:42:20,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648857461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:20,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:20,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:42:20,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325351698] [2022-11-23 03:42:20,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:20,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:42:20,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:20,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:42:20,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:42:21,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 305 [2022-11-23 03:42:21,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 288 transitions, 6706 flow. Second operand has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:21,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:21,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 305 [2022-11-23 03:42:21,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:23,121 INFO L130 PetriNetUnfolder]: 414/1289 cut-off events. [2022-11-23 03:42:23,121 INFO L131 PetriNetUnfolder]: For 34252/34252 co-relation queries the response was YES. [2022-11-23 03:42:23,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11335 conditions, 1289 events. 414/1289 cut-off events. For 34252/34252 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10012 event pairs, 275 based on Foata normal form. 1/1290 useless extension candidates. Maximal degree in co-relation 11042. Up to 1056 conditions per place. [2022-11-23 03:42:23,132 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 241 selfloop transitions, 68 changer transitions 0/310 dead transitions. [2022-11-23 03:42:23,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 310 transitions, 7610 flow [2022-11-23 03:42:23,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:42:23,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-23 03:42:23,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1566 transitions. [2022-11-23 03:42:23,135 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4278688524590164 [2022-11-23 03:42:23,135 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1566 transitions. [2022-11-23 03:42:23,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1566 transitions. [2022-11-23 03:42:23,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:23,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1566 transitions. [2022-11-23 03:42:23,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 130.5) internal successors, (1566), 12 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:23,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:23,139 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 305.0) internal successors, (3965), 13 states have internal predecessors, (3965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:23,139 INFO L175 Difference]: Start difference. First operand has 357 places, 288 transitions, 6706 flow. Second operand 12 states and 1566 transitions. [2022-11-23 03:42:23,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 310 transitions, 7610 flow [2022-11-23 03:42:23,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 310 transitions, 7364 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-11-23 03:42:23,273 INFO L231 Difference]: Finished difference. Result has 359 places, 291 transitions, 6656 flow [2022-11-23 03:42:23,273 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6466, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=6656, PETRI_PLACES=359, PETRI_TRANSITIONS=291} [2022-11-23 03:42:23,274 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 325 predicate places. [2022-11-23 03:42:23,274 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 291 transitions, 6656 flow [2022-11-23 03:42:23,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:23,274 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:23,274 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:23,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-23 03:42:23,275 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:23,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:23,275 INFO L85 PathProgramCache]: Analyzing trace with hash 130630810, now seen corresponding path program 2 times [2022-11-23 03:42:23,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:23,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928706602] [2022-11-23 03:42:23,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:23,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:24,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:24,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928706602] [2022-11-23 03:42:24,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928706602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:24,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:24,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 03:42:24,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675811864] [2022-11-23 03:42:24,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:24,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 03:42:24,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:24,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 03:42:24,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:42:26,445 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-23 03:42:26,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 291 transitions, 6656 flow. Second operand has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:26,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:26,446 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-23 03:42:26,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:28,031 INFO L130 PetriNetUnfolder]: 417/1300 cut-off events. [2022-11-23 03:42:28,031 INFO L131 PetriNetUnfolder]: For 34164/34164 co-relation queries the response was YES. [2022-11-23 03:42:28,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11454 conditions, 1300 events. 417/1300 cut-off events. For 34164/34164 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10153 event pairs, 259 based on Foata normal form. 4/1304 useless extension candidates. Maximal degree in co-relation 11159. Up to 1078 conditions per place. [2022-11-23 03:42:28,043 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 227 selfloop transitions, 81 changer transitions 0/309 dead transitions. [2022-11-23 03:42:28,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 309 transitions, 7353 flow [2022-11-23 03:42:28,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 03:42:28,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-23 03:42:28,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2298 transitions. [2022-11-23 03:42:28,046 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41857923497267757 [2022-11-23 03:42:28,046 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2298 transitions. [2022-11-23 03:42:28,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2298 transitions. [2022-11-23 03:42:28,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:28,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2298 transitions. [2022-11-23 03:42:28,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 127.66666666666667) internal successors, (2298), 18 states have internal predecessors, (2298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:28,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:28,053 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:28,054 INFO L175 Difference]: Start difference. First operand has 359 places, 291 transitions, 6656 flow. Second operand 18 states and 2298 transitions. [2022-11-23 03:42:28,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 309 transitions, 7353 flow [2022-11-23 03:42:28,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 309 transitions, 7250 flow, removed 11 selfloop flow, removed 8 redundant places. [2022-11-23 03:42:28,207 INFO L231 Difference]: Finished difference. Result has 370 places, 296 transitions, 6775 flow [2022-11-23 03:42:28,208 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6565, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6775, PETRI_PLACES=370, PETRI_TRANSITIONS=296} [2022-11-23 03:42:28,208 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 336 predicate places. [2022-11-23 03:42:28,208 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 296 transitions, 6775 flow [2022-11-23 03:42:28,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:28,209 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:28,209 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:28,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-23 03:42:28,209 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:28,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:28,209 INFO L85 PathProgramCache]: Analyzing trace with hash -645044764, now seen corresponding path program 3 times [2022-11-23 03:42:28,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:28,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760022063] [2022-11-23 03:42:28,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:28,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:29,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:29,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:29,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760022063] [2022-11-23 03:42:29,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760022063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:29,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:29,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:42:29,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517658825] [2022-11-23 03:42:29,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:29,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:42:29,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:29,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:42:29,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:42:30,625 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:42:30,626 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 296 transitions, 6775 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:30,626 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:30,626 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:42:30,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:32,066 INFO L130 PetriNetUnfolder]: 427/1332 cut-off events. [2022-11-23 03:42:32,066 INFO L131 PetriNetUnfolder]: For 35039/35039 co-relation queries the response was YES. [2022-11-23 03:42:32,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11943 conditions, 1332 events. 427/1332 cut-off events. For 35039/35039 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 10476 event pairs, 227 based on Foata normal form. 2/1331 useless extension candidates. Maximal degree in co-relation 11646. Up to 850 conditions per place. [2022-11-23 03:42:32,078 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 209 selfloop transitions, 112 changer transitions 0/322 dead transitions. [2022-11-23 03:42:32,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 322 transitions, 7772 flow [2022-11-23 03:42:32,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 03:42:32,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-23 03:42:32,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2226 transitions. [2022-11-23 03:42:32,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42931533269045324 [2022-11-23 03:42:32,081 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2226 transitions. [2022-11-23 03:42:32,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2226 transitions. [2022-11-23 03:42:32,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:32,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2226 transitions. [2022-11-23 03:42:32,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 130.94117647058823) internal successors, (2226), 17 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) [2022-11-23 03:42:32,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:32,086 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:32,086 INFO L175 Difference]: Start difference. First operand has 370 places, 296 transitions, 6775 flow. Second operand 17 states and 2226 transitions. [2022-11-23 03:42:32,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 322 transitions, 7772 flow [2022-11-23 03:42:32,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 322 transitions, 7648 flow, removed 3 selfloop flow, removed 14 redundant places. [2022-11-23 03:42:32,225 INFO L231 Difference]: Finished difference. Result has 374 places, 306 transitions, 7123 flow [2022-11-23 03:42:32,225 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=6653, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7123, PETRI_PLACES=374, PETRI_TRANSITIONS=306} [2022-11-23 03:42:32,225 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 340 predicate places. [2022-11-23 03:42:32,225 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 306 transitions, 7123 flow [2022-11-23 03:42:32,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:32,226 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:32,226 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:32,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-23 03:42:32,226 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:32,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:32,226 INFO L85 PathProgramCache]: Analyzing trace with hash -122119252, now seen corresponding path program 4 times [2022-11-23 03:42:32,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:32,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887375345] [2022-11-23 03:42:32,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:32,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:33,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:33,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887375345] [2022-11-23 03:42:33,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887375345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:33,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:33,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:42:33,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829951640] [2022-11-23 03:42:33,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:33,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:42:33,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:33,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:42:33,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:42:34,967 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:42:34,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 306 transitions, 7123 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:34,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:34,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:42:34,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:36,289 INFO L130 PetriNetUnfolder]: 426/1329 cut-off events. [2022-11-23 03:42:36,289 INFO L131 PetriNetUnfolder]: For 36431/36431 co-relation queries the response was YES. [2022-11-23 03:42:36,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12241 conditions, 1329 events. 426/1329 cut-off events. For 36431/36431 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 10463 event pairs, 232 based on Foata normal form. 1/1327 useless extension candidates. Maximal degree in co-relation 11941. Up to 850 conditions per place. [2022-11-23 03:42:36,302 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 232 selfloop transitions, 87 changer transitions 0/320 dead transitions. [2022-11-23 03:42:36,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 320 transitions, 7841 flow [2022-11-23 03:42:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:42:36,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-23 03:42:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1967 transitions. [2022-11-23 03:42:36,305 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4299453551912568 [2022-11-23 03:42:36,305 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1967 transitions. [2022-11-23 03:42:36,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1967 transitions. [2022-11-23 03:42:36,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:36,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1967 transitions. [2022-11-23 03:42:36,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 131.13333333333333) internal successors, (1967), 15 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:36,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:36,311 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:36,311 INFO L175 Difference]: Start difference. First operand has 374 places, 306 transitions, 7123 flow. Second operand 15 states and 1967 transitions. [2022-11-23 03:42:36,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 320 transitions, 7841 flow [2022-11-23 03:42:36,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 320 transitions, 7727 flow, removed 7 selfloop flow, removed 12 redundant places. [2022-11-23 03:42:36,469 INFO L231 Difference]: Finished difference. Result has 377 places, 307 transitions, 7201 flow [2022-11-23 03:42:36,470 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7011, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7201, PETRI_PLACES=377, PETRI_TRANSITIONS=307} [2022-11-23 03:42:36,470 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 343 predicate places. [2022-11-23 03:42:36,470 INFO L495 AbstractCegarLoop]: Abstraction has has 377 places, 307 transitions, 7201 flow [2022-11-23 03:42:36,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:36,470 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:36,470 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:36,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-23 03:42:36,471 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:36,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:36,471 INFO L85 PathProgramCache]: Analyzing trace with hash -852066770, now seen corresponding path program 5 times [2022-11-23 03:42:36,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:36,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9722524] [2022-11-23 03:42:36,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:36,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:37,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:37,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:37,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9722524] [2022-11-23 03:42:37,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9722524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:37,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:37,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:42:37,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855877161] [2022-11-23 03:42:37,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:37,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:42:37,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:37,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:42:37,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:42:39,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 305 [2022-11-23 03:42:39,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 377 places, 307 transitions, 7201 flow. Second operand has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:39,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:39,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 305 [2022-11-23 03:42:39,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:40,319 INFO L130 PetriNetUnfolder]: 425/1326 cut-off events. [2022-11-23 03:42:40,319 INFO L131 PetriNetUnfolder]: For 36640/36640 co-relation queries the response was YES. [2022-11-23 03:42:40,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12132 conditions, 1326 events. 425/1326 cut-off events. For 36640/36640 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10424 event pairs, 277 based on Foata normal form. 1/1327 useless extension candidates. Maximal degree in co-relation 11830. Up to 1190 conditions per place. [2022-11-23 03:42:40,332 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 291 selfloop transitions, 30 changer transitions 0/322 dead transitions. [2022-11-23 03:42:40,332 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 322 transitions, 7963 flow [2022-11-23 03:42:40,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:42:40,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-23 03:42:40,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1690 transitions. [2022-11-23 03:42:40,334 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4262295081967213 [2022-11-23 03:42:40,334 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1690 transitions. [2022-11-23 03:42:40,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1690 transitions. [2022-11-23 03:42:40,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:40,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1690 transitions. [2022-11-23 03:42:40,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 130.0) internal successors, (1690), 13 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:40,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:40,338 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:40,338 INFO L175 Difference]: Start difference. First operand has 377 places, 307 transitions, 7201 flow. Second operand 13 states and 1690 transitions. [2022-11-23 03:42:40,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 322 transitions, 7963 flow [2022-11-23 03:42:40,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 322 transitions, 7803 flow, removed 2 selfloop flow, removed 12 redundant places. [2022-11-23 03:42:40,599 INFO L231 Difference]: Finished difference. Result has 379 places, 310 transitions, 7139 flow [2022-11-23 03:42:40,600 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7041, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7139, PETRI_PLACES=379, PETRI_TRANSITIONS=310} [2022-11-23 03:42:40,600 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 345 predicate places. [2022-11-23 03:42:40,600 INFO L495 AbstractCegarLoop]: Abstraction has has 379 places, 310 transitions, 7139 flow [2022-11-23 03:42:40,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:40,601 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:40,601 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:40,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-23 03:42:40,602 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:40,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:40,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1134356514, now seen corresponding path program 6 times [2022-11-23 03:42:40,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:40,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900632226] [2022-11-23 03:42:40,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:40,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:41,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:41,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:41,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900632226] [2022-11-23 03:42:41,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900632226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:41,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:41,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:42:41,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411441038] [2022-11-23 03:42:41,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:41,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:42:41,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:41,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:42:41,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:42:44,086 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:42:44,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 310 transitions, 7139 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:44,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:44,088 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:42:44,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:45,420 INFO L130 PetriNetUnfolder]: 424/1325 cut-off events. [2022-11-23 03:42:45,420 INFO L131 PetriNetUnfolder]: For 36026/36026 co-relation queries the response was YES. [2022-11-23 03:42:45,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12112 conditions, 1325 events. 424/1325 cut-off events. For 36026/36026 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10451 event pairs, 249 based on Foata normal form. 1/1323 useless extension candidates. Maximal degree in co-relation 11808. Up to 854 conditions per place. [2022-11-23 03:42:45,434 INFO L137 encePairwiseOnDemand]: 295/305 looper letters, 241 selfloop transitions, 86 changer transitions 0/328 dead transitions. [2022-11-23 03:42:45,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 328 transitions, 7917 flow [2022-11-23 03:42:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:42:45,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-23 03:42:45,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1713 transitions. [2022-11-23 03:42:45,436 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43203026481715007 [2022-11-23 03:42:45,437 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1713 transitions. [2022-11-23 03:42:45,437 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1713 transitions. [2022-11-23 03:42:45,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:45,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1713 transitions. [2022-11-23 03:42:45,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 131.76923076923077) internal successors, (1713), 13 states have internal predecessors, (1713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:45,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:45,441 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:45,441 INFO L175 Difference]: Start difference. First operand has 379 places, 310 transitions, 7139 flow. Second operand 13 states and 1713 transitions. [2022-11-23 03:42:45,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 328 transitions, 7917 flow [2022-11-23 03:42:45,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 328 transitions, 7865 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-11-23 03:42:45,651 INFO L231 Difference]: Finished difference. Result has 383 places, 315 transitions, 7342 flow [2022-11-23 03:42:45,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7087, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=7342, PETRI_PLACES=383, PETRI_TRANSITIONS=315} [2022-11-23 03:42:45,652 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 349 predicate places. [2022-11-23 03:42:45,652 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 315 transitions, 7342 flow [2022-11-23 03:42:45,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:45,652 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:45,653 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:45,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-23 03:42:45,653 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:45,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:45,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1297251188, now seen corresponding path program 7 times [2022-11-23 03:42:45,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:45,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47881027] [2022-11-23 03:42:45,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:45,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:46,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:46,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47881027] [2022-11-23 03:42:46,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47881027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:46,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:46,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 03:42:46,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563880954] [2022-11-23 03:42:46,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:46,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 03:42:46,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:46,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 03:42:46,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:42:48,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-23 03:42:48,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 315 transitions, 7342 flow. Second operand has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:48,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:48,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-23 03:42:48,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:49,975 INFO L130 PetriNetUnfolder]: 424/1328 cut-off events. [2022-11-23 03:42:49,975 INFO L131 PetriNetUnfolder]: For 36843/36843 co-relation queries the response was YES. [2022-11-23 03:42:49,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12238 conditions, 1328 events. 424/1328 cut-off events. For 36843/36843 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10463 event pairs, 261 based on Foata normal form. 2/1327 useless extension candidates. Maximal degree in co-relation 11933. Up to 1058 conditions per place. [2022-11-23 03:42:49,988 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 240 selfloop transitions, 91 changer transitions 0/332 dead transitions. [2022-11-23 03:42:49,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 332 transitions, 8121 flow [2022-11-23 03:42:49,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 03:42:49,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-23 03:42:49,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2295 transitions. [2022-11-23 03:42:49,991 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4180327868852459 [2022-11-23 03:42:49,991 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2295 transitions. [2022-11-23 03:42:49,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2295 transitions. [2022-11-23 03:42:49,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:49,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2295 transitions. [2022-11-23 03:42:49,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 127.5) internal successors, (2295), 18 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:49,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:49,998 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:49,998 INFO L175 Difference]: Start difference. First operand has 383 places, 315 transitions, 7342 flow. Second operand 18 states and 2295 transitions. [2022-11-23 03:42:49,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 332 transitions, 8121 flow [2022-11-23 03:42:50,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 332 transitions, 8007 flow, removed 3 selfloop flow, removed 9 redundant places. [2022-11-23 03:42:50,241 INFO L231 Difference]: Finished difference. Result has 393 places, 321 transitions, 7504 flow [2022-11-23 03:42:50,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7230, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7504, PETRI_PLACES=393, PETRI_TRANSITIONS=321} [2022-11-23 03:42:50,242 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 359 predicate places. [2022-11-23 03:42:50,243 INFO L495 AbstractCegarLoop]: Abstraction has has 393 places, 321 transitions, 7504 flow [2022-11-23 03:42:50,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:50,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:50,243 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:50,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-23 03:42:50,244 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:50,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:50,244 INFO L85 PathProgramCache]: Analyzing trace with hash -384085848, now seen corresponding path program 8 times [2022-11-23 03:42:50,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:50,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775810974] [2022-11-23 03:42:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:50,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:51,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:51,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775810974] [2022-11-23 03:42:51,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775810974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:51,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:51,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:42:51,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773555157] [2022-11-23 03:42:51,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:51,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:42:51,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:51,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:42:51,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:42:52,860 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 305 [2022-11-23 03:42:52,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 321 transitions, 7504 flow. Second operand has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:52,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:52,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 305 [2022-11-23 03:42:52,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:54,326 INFO L130 PetriNetUnfolder]: 423/1326 cut-off events. [2022-11-23 03:42:54,327 INFO L131 PetriNetUnfolder]: For 37828/37828 co-relation queries the response was YES. [2022-11-23 03:42:54,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12492 conditions, 1326 events. 423/1326 cut-off events. For 37828/37828 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10465 event pairs, 274 based on Foata normal form. 1/1324 useless extension candidates. Maximal degree in co-relation 12216. Up to 1184 conditions per place. [2022-11-23 03:42:54,345 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 300 selfloop transitions, 34 changer transitions 0/335 dead transitions. [2022-11-23 03:42:54,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 335 transitions, 8295 flow [2022-11-23 03:42:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:42:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-23 03:42:54,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1950 transitions. [2022-11-23 03:42:54,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4262295081967213 [2022-11-23 03:42:54,348 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1950 transitions. [2022-11-23 03:42:54,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1950 transitions. [2022-11-23 03:42:54,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:54,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1950 transitions. [2022-11-23 03:42:54,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 130.0) internal successors, (1950), 15 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:54,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:54,352 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:54,352 INFO L175 Difference]: Start difference. First operand has 393 places, 321 transitions, 7504 flow. Second operand 15 states and 1950 transitions. [2022-11-23 03:42:54,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 335 transitions, 8295 flow [2022-11-23 03:42:54,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 335 transitions, 8091 flow, removed 10 selfloop flow, removed 13 redundant places. [2022-11-23 03:42:54,513 INFO L231 Difference]: Finished difference. Result has 396 places, 324 transitions, 7411 flow [2022-11-23 03:42:54,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7300, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7411, PETRI_PLACES=396, PETRI_TRANSITIONS=324} [2022-11-23 03:42:54,515 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 362 predicate places. [2022-11-23 03:42:54,515 INFO L495 AbstractCegarLoop]: Abstraction has has 396 places, 324 transitions, 7411 flow [2022-11-23 03:42:54,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 127.14285714285714) internal successors, (1780), 14 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:54,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:54,516 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:54,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-23 03:42:54,516 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:54,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:54,516 INFO L85 PathProgramCache]: Analyzing trace with hash 274501902, now seen corresponding path program 9 times [2022-11-23 03:42:54,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:54,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276194692] [2022-11-23 03:42:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:54,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:55,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:55,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:42:55,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276194692] [2022-11-23 03:42:55,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276194692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:55,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:55,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 03:42:55,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479810922] [2022-11-23 03:42:55,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:55,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 03:42:55,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:42:55,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 03:42:55,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:42:57,505 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-23 03:42:57,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 324 transitions, 7411 flow. Second operand has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:57,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:57,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-23 03:42:57,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:59,188 INFO L130 PetriNetUnfolder]: 432/1354 cut-off events. [2022-11-23 03:42:59,188 INFO L131 PetriNetUnfolder]: For 38137/38137 co-relation queries the response was YES. [2022-11-23 03:42:59,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12712 conditions, 1354 events. 432/1354 cut-off events. For 38137/38137 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10772 event pairs, 259 based on Foata normal form. 4/1355 useless extension candidates. Maximal degree in co-relation 12443. Up to 1173 conditions per place. [2022-11-23 03:42:59,203 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 291 selfloop transitions, 56 changer transitions 0/348 dead transitions. [2022-11-23 03:42:59,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 348 transitions, 8363 flow [2022-11-23 03:42:59,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 03:42:59,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-23 03:42:59,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2295 transitions. [2022-11-23 03:42:59,206 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4180327868852459 [2022-11-23 03:42:59,206 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2295 transitions. [2022-11-23 03:42:59,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2295 transitions. [2022-11-23 03:42:59,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:59,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2295 transitions. [2022-11-23 03:42:59,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 127.5) internal successors, (2295), 18 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:59,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:59,215 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 305.0) internal successors, (5795), 19 states have internal predecessors, (5795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:59,215 INFO L175 Difference]: Start difference. First operand has 396 places, 324 transitions, 7411 flow. Second operand 18 states and 2295 transitions. [2022-11-23 03:42:59,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 348 transitions, 8363 flow [2022-11-23 03:42:59,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 403 places, 348 transitions, 8294 flow, removed 12 selfloop flow, removed 10 redundant places. [2022-11-23 03:42:59,447 INFO L231 Difference]: Finished difference. Result has 409 places, 336 transitions, 7724 flow [2022-11-23 03:42:59,448 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7356, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7724, PETRI_PLACES=409, PETRI_TRANSITIONS=336} [2022-11-23 03:42:59,448 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 375 predicate places. [2022-11-23 03:42:59,448 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 336 transitions, 7724 flow [2022-11-23 03:42:59,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:59,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:59,449 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:59,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-23 03:42:59,449 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:42:59,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:59,450 INFO L85 PathProgramCache]: Analyzing trace with hash 858351026, now seen corresponding path program 10 times [2022-11-23 03:42:59,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:42:59,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137173631] [2022-11-23 03:42:59,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:59,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:42:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:00,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:00,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137173631] [2022-11-23 03:43:00,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137173631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:00,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:00,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:43:00,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270183718] [2022-11-23 03:43:00,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:00,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:43:00,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:00,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:43:00,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:43:02,218 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:43:02,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 336 transitions, 7724 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:02,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:02,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:43:02,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:03,748 INFO L130 PetriNetUnfolder]: 430/1350 cut-off events. [2022-11-23 03:43:03,748 INFO L131 PetriNetUnfolder]: For 39565/39565 co-relation queries the response was YES. [2022-11-23 03:43:03,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13027 conditions, 1350 events. 430/1350 cut-off events. For 39565/39565 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10738 event pairs, 220 based on Foata normal form. 2/1349 useless extension candidates. Maximal degree in co-relation 12751. Up to 570 conditions per place. [2022-11-23 03:43:03,763 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 273 selfloop transitions, 82 changer transitions 0/356 dead transitions. [2022-11-23 03:43:03,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 356 transitions, 8603 flow [2022-11-23 03:43:03,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:43:03,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 03:43:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1839 transitions. [2022-11-23 03:43:03,766 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4306791569086651 [2022-11-23 03:43:03,766 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1839 transitions. [2022-11-23 03:43:03,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1839 transitions. [2022-11-23 03:43:03,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:03,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1839 transitions. [2022-11-23 03:43:03,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 131.35714285714286) internal successors, (1839), 14 states have internal predecessors, (1839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:03,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:03,770 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:03,770 INFO L175 Difference]: Start difference. First operand has 409 places, 336 transitions, 7724 flow. Second operand 14 states and 1839 transitions. [2022-11-23 03:43:03,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 356 transitions, 8603 flow [2022-11-23 03:43:03,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 356 transitions, 8332 flow, removed 22 selfloop flow, removed 10 redundant places. [2022-11-23 03:43:03,955 INFO L231 Difference]: Finished difference. Result has 414 places, 339 transitions, 7683 flow [2022-11-23 03:43:03,956 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7455, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7683, PETRI_PLACES=414, PETRI_TRANSITIONS=339} [2022-11-23 03:43:03,956 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 380 predicate places. [2022-11-23 03:43:03,957 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 339 transitions, 7683 flow [2022-11-23 03:43:03,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:03,957 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:03,957 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:03,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-23 03:43:03,958 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:03,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:03,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1382297908, now seen corresponding path program 11 times [2022-11-23 03:43:03,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:03,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081714894] [2022-11-23 03:43:03,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:03,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:05,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:05,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:05,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081714894] [2022-11-23 03:43:05,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081714894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:05,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:05,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:43:05,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049597245] [2022-11-23 03:43:05,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:05,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:43:05,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:05,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:43:05,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:43:06,802 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:43:06,803 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 339 transitions, 7683 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:06,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:06,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:43:06,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:09,428 INFO L130 PetriNetUnfolder]: 426/1345 cut-off events. [2022-11-23 03:43:09,428 INFO L131 PetriNetUnfolder]: For 38936/38936 co-relation queries the response was YES. [2022-11-23 03:43:09,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12898 conditions, 1345 events. 426/1345 cut-off events. For 38936/38936 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10708 event pairs, 161 based on Foata normal form. 4/1349 useless extension candidates. Maximal degree in co-relation 12620. Up to 574 conditions per place. [2022-11-23 03:43:09,450 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 188 selfloop transitions, 183 changer transitions 0/372 dead transitions. [2022-11-23 03:43:09,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 372 transitions, 8831 flow [2022-11-23 03:43:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-23 03:43:09,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-23 03:43:09,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 3781 transitions. [2022-11-23 03:43:09,455 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4274731486715659 [2022-11-23 03:43:09,455 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 3781 transitions. [2022-11-23 03:43:09,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 3781 transitions. [2022-11-23 03:43:09,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:09,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 3781 transitions. [2022-11-23 03:43:09,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 130.3793103448276) internal successors, (3781), 29 states have internal predecessors, (3781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:09,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 305.0) internal successors, (9150), 30 states have internal predecessors, (9150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:09,520 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 305.0) internal successors, (9150), 30 states have internal predecessors, (9150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:09,520 INFO L175 Difference]: Start difference. First operand has 414 places, 339 transitions, 7683 flow. Second operand 29 states and 3781 transitions. [2022-11-23 03:43:09,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 372 transitions, 8831 flow [2022-11-23 03:43:09,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 372 transitions, 8669 flow, removed 14 selfloop flow, removed 10 redundant places. [2022-11-23 03:43:09,789 INFO L231 Difference]: Finished difference. Result has 436 places, 347 transitions, 8192 flow [2022-11-23 03:43:09,789 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7525, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=8192, PETRI_PLACES=436, PETRI_TRANSITIONS=347} [2022-11-23 03:43:09,790 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 402 predicate places. [2022-11-23 03:43:09,790 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 347 transitions, 8192 flow [2022-11-23 03:43:09,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:09,791 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:09,791 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:09,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-23 03:43:09,791 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:09,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:09,792 INFO L85 PathProgramCache]: Analyzing trace with hash 677611604, now seen corresponding path program 12 times [2022-11-23 03:43:09,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:09,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115491652] [2022-11-23 03:43:09,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:09,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:10,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:10,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:10,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115491652] [2022-11-23 03:43:10,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115491652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:10,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:10,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 03:43:10,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647842500] [2022-11-23 03:43:10,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:10,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 03:43:10,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:10,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 03:43:10,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:43:12,546 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-23 03:43:12,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 347 transitions, 8192 flow. Second operand has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:12,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:12,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-23 03:43:12,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:14,229 INFO L130 PetriNetUnfolder]: 425/1344 cut-off events. [2022-11-23 03:43:14,229 INFO L131 PetriNetUnfolder]: For 42030/42030 co-relation queries the response was YES. [2022-11-23 03:43:14,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13245 conditions, 1344 events. 425/1344 cut-off events. For 42030/42030 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10653 event pairs, 146 based on Foata normal form. 4/1345 useless extension candidates. Maximal degree in co-relation 12957. Up to 831 conditions per place. [2022-11-23 03:43:14,244 INFO L137 encePairwiseOnDemand]: 289/305 looper letters, 225 selfloop transitions, 141 changer transitions 0/367 dead transitions. [2022-11-23 03:43:14,245 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 367 transitions, 9071 flow [2022-11-23 03:43:14,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 03:43:14,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-23 03:43:14,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2178 transitions. [2022-11-23 03:43:14,248 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4200578592092575 [2022-11-23 03:43:14,248 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2178 transitions. [2022-11-23 03:43:14,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2178 transitions. [2022-11-23 03:43:14,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:14,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2178 transitions. [2022-11-23 03:43:14,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 128.11764705882354) internal successors, (2178), 17 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:14,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:14,256 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 305.0) internal successors, (5490), 18 states have internal predecessors, (5490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:14,256 INFO L175 Difference]: Start difference. First operand has 436 places, 347 transitions, 8192 flow. Second operand 17 states and 2178 transitions. [2022-11-23 03:43:14,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 367 transitions, 9071 flow [2022-11-23 03:43:14,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 367 transitions, 8682 flow, removed 34 selfloop flow, removed 27 redundant places. [2022-11-23 03:43:14,574 INFO L231 Difference]: Finished difference. Result has 427 places, 352 transitions, 8178 flow [2022-11-23 03:43:14,575 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7823, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=8178, PETRI_PLACES=427, PETRI_TRANSITIONS=352} [2022-11-23 03:43:14,575 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 393 predicate places. [2022-11-23 03:43:14,575 INFO L495 AbstractCegarLoop]: Abstraction has has 427 places, 352 transitions, 8178 flow [2022-11-23 03:43:14,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:14,576 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:14,576 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:14,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-23 03:43:14,576 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:14,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:14,576 INFO L85 PathProgramCache]: Analyzing trace with hash -953902236, now seen corresponding path program 13 times [2022-11-23 03:43:14,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:14,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354779221] [2022-11-23 03:43:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:14,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:15,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:15,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:15,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354779221] [2022-11-23 03:43:15,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354779221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:15,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:15,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:43:15,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591945981] [2022-11-23 03:43:15,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:15,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:43:15,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:15,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:43:15,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:43:17,224 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:43:17,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 352 transitions, 8178 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:17,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:17,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:43:17,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:18,414 INFO L130 PetriNetUnfolder]: 424/1342 cut-off events. [2022-11-23 03:43:18,414 INFO L131 PetriNetUnfolder]: For 41821/41821 co-relation queries the response was YES. [2022-11-23 03:43:18,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13186 conditions, 1342 events. 424/1342 cut-off events. For 41821/41821 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10638 event pairs, 233 based on Foata normal form. 1/1343 useless extension candidates. Maximal degree in co-relation 12897. Up to 1014 conditions per place. [2022-11-23 03:43:18,427 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 315 selfloop transitions, 48 changer transitions 0/364 dead transitions. [2022-11-23 03:43:18,427 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 364 transitions, 8979 flow [2022-11-23 03:43:18,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:43:18,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 03:43:18,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1837 transitions. [2022-11-23 03:43:18,430 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43021077283372366 [2022-11-23 03:43:18,430 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1837 transitions. [2022-11-23 03:43:18,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1837 transitions. [2022-11-23 03:43:18,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:18,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1837 transitions. [2022-11-23 03:43:18,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 131.21428571428572) internal successors, (1837), 14 states have internal predecessors, (1837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:18,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:18,435 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:18,435 INFO L175 Difference]: Start difference. First operand has 427 places, 352 transitions, 8178 flow. Second operand 14 states and 1837 transitions. [2022-11-23 03:43:18,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 364 transitions, 8979 flow [2022-11-23 03:43:18,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 364 transitions, 8744 flow, removed 7 selfloop flow, removed 12 redundant places. [2022-11-23 03:43:18,643 INFO L231 Difference]: Finished difference. Result has 429 places, 353 transitions, 8055 flow [2022-11-23 03:43:18,643 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7943, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8055, PETRI_PLACES=429, PETRI_TRANSITIONS=353} [2022-11-23 03:43:18,644 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 395 predicate places. [2022-11-23 03:43:18,644 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 353 transitions, 8055 flow [2022-11-23 03:43:18,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:18,644 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:18,645 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:18,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-23 03:43:18,645 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:18,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:18,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1068872756, now seen corresponding path program 14 times [2022-11-23 03:43:18,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:18,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242069106] [2022-11-23 03:43:18,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:18,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:19,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:19,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242069106] [2022-11-23 03:43:19,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242069106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:19,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:19,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:43:19,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920074020] [2022-11-23 03:43:19,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:19,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:43:19,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:19,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:43:19,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:43:21,096 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:43:21,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 353 transitions, 8055 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:21,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:21,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:43:21,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:22,913 INFO L130 PetriNetUnfolder]: 416/1327 cut-off events. [2022-11-23 03:43:22,914 INFO L131 PetriNetUnfolder]: For 40507/40507 co-relation queries the response was YES. [2022-11-23 03:43:22,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12819 conditions, 1327 events. 416/1327 cut-off events. For 40507/40507 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10581 event pairs, 126 based on Foata normal form. 8/1332 useless extension candidates. Maximal degree in co-relation 12540. Up to 554 conditions per place. [2022-11-23 03:43:22,929 INFO L137 encePairwiseOnDemand]: 291/305 looper letters, 131 selfloop transitions, 244 changer transitions 0/376 dead transitions. [2022-11-23 03:43:22,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 450 places, 376 transitions, 9070 flow [2022-11-23 03:43:22,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 03:43:22,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-23 03:43:22,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2861 transitions. [2022-11-23 03:43:22,933 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4263785394932936 [2022-11-23 03:43:22,933 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 2861 transitions. [2022-11-23 03:43:22,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 2861 transitions. [2022-11-23 03:43:22,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:22,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 2861 transitions. [2022-11-23 03:43:22,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 130.04545454545453) internal successors, (2861), 22 states have internal predecessors, (2861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:22,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 305.0) internal successors, (7015), 23 states have internal predecessors, (7015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:22,940 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 305.0) internal successors, (7015), 23 states have internal predecessors, (7015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:22,940 INFO L175 Difference]: Start difference. First operand has 429 places, 353 transitions, 8055 flow. Second operand 22 states and 2861 transitions. [2022-11-23 03:43:22,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 450 places, 376 transitions, 9070 flow [2022-11-23 03:43:23,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 376 transitions, 8977 flow, removed 3 selfloop flow, removed 11 redundant places. [2022-11-23 03:43:23,145 INFO L231 Difference]: Finished difference. Result has 441 places, 357 transitions, 8617 flow [2022-11-23 03:43:23,145 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=7962, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=241, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8617, PETRI_PLACES=441, PETRI_TRANSITIONS=357} [2022-11-23 03:43:23,145 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 407 predicate places. [2022-11-23 03:43:23,146 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 357 transitions, 8617 flow [2022-11-23 03:43:23,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:23,146 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:23,146 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:23,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-23 03:43:23,147 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:23,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:23,147 INFO L85 PathProgramCache]: Analyzing trace with hash 822683058, now seen corresponding path program 15 times [2022-11-23 03:43:23,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:23,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367172606] [2022-11-23 03:43:23,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:23,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:24,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:24,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:24,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367172606] [2022-11-23 03:43:24,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367172606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:24,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:24,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:43:24,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312460585] [2022-11-23 03:43:24,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:24,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:43:24,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:24,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:43:24,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:43:25,554 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:43:25,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 357 transitions, 8617 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:25,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:25,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:43:25,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:26,835 INFO L130 PetriNetUnfolder]: 414/1322 cut-off events. [2022-11-23 03:43:26,835 INFO L131 PetriNetUnfolder]: For 41792/41792 co-relation queries the response was YES. [2022-11-23 03:43:26,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13273 conditions, 1322 events. 414/1322 cut-off events. For 41792/41792 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10516 event pairs, 102 based on Foata normal form. 2/1321 useless extension candidates. Maximal degree in co-relation 12980. Up to 785 conditions per place. [2022-11-23 03:43:26,849 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 218 selfloop transitions, 146 changer transitions 0/365 dead transitions. [2022-11-23 03:43:26,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 365 transitions, 9403 flow [2022-11-23 03:43:26,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:43:26,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-23 03:43:26,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1828 transitions. [2022-11-23 03:43:26,851 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4281030444964871 [2022-11-23 03:43:26,852 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1828 transitions. [2022-11-23 03:43:26,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1828 transitions. [2022-11-23 03:43:26,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:26,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1828 transitions. [2022-11-23 03:43:26,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 130.57142857142858) internal successors, (1828), 14 states have internal predecessors, (1828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:26,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:26,855 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 305.0) internal successors, (4575), 15 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:26,855 INFO L175 Difference]: Start difference. First operand has 441 places, 357 transitions, 8617 flow. Second operand 14 states and 1828 transitions. [2022-11-23 03:43:26,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 365 transitions, 9403 flow [2022-11-23 03:43:27,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 365 transitions, 8960 flow, removed 51 selfloop flow, removed 19 redundant places. [2022-11-23 03:43:27,070 INFO L231 Difference]: Finished difference. Result has 436 places, 358 transitions, 8501 flow [2022-11-23 03:43:27,070 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=8178, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8501, PETRI_PLACES=436, PETRI_TRANSITIONS=358} [2022-11-23 03:43:27,071 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 402 predicate places. [2022-11-23 03:43:27,071 INFO L495 AbstractCegarLoop]: Abstraction has has 436 places, 358 transitions, 8501 flow [2022-11-23 03:43:27,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:27,071 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:27,071 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:27,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-23 03:43:27,071 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:27,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:27,071 INFO L85 PathProgramCache]: Analyzing trace with hash 474445714, now seen corresponding path program 16 times [2022-11-23 03:43:27,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:27,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671163512] [2022-11-23 03:43:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:27,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:28,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:28,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:28,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671163512] [2022-11-23 03:43:28,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671163512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:28,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:28,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-23 03:43:28,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268328131] [2022-11-23 03:43:28,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:28,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 03:43:28,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:28,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 03:43:28,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:43:29,796 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-23 03:43:29,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 358 transitions, 8501 flow. Second operand has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:29,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:29,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-23 03:43:29,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:31,922 INFO L130 PetriNetUnfolder]: 416/1330 cut-off events. [2022-11-23 03:43:31,922 INFO L131 PetriNetUnfolder]: For 41300/41300 co-relation queries the response was YES. [2022-11-23 03:43:31,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13259 conditions, 1330 events. 416/1330 cut-off events. For 41300/41300 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10577 event pairs, 118 based on Foata normal form. 2/1332 useless extension candidates. Maximal degree in co-relation 12973. Up to 682 conditions per place. [2022-11-23 03:43:31,934 INFO L137 encePairwiseOnDemand]: 290/305 looper letters, 192 selfloop transitions, 186 changer transitions 0/379 dead transitions. [2022-11-23 03:43:31,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 455 places, 379 transitions, 9441 flow [2022-11-23 03:43:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 03:43:31,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-23 03:43:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2546 transitions. [2022-11-23 03:43:31,937 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41737704918032786 [2022-11-23 03:43:31,938 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2546 transitions. [2022-11-23 03:43:31,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2546 transitions. [2022-11-23 03:43:31,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:31,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2546 transitions. [2022-11-23 03:43:31,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 127.3) internal successors, (2546), 20 states have internal predecessors, (2546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:31,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 305.0) internal successors, (6405), 21 states have internal predecessors, (6405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:31,947 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 305.0) internal successors, (6405), 21 states have internal predecessors, (6405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:31,947 INFO L175 Difference]: Start difference. First operand has 436 places, 358 transitions, 8501 flow. Second operand 20 states and 2546 transitions. [2022-11-23 03:43:31,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 455 places, 379 transitions, 9441 flow [2022-11-23 03:43:32,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 379 transitions, 9203 flow, removed 1 selfloop flow, removed 11 redundant places. [2022-11-23 03:43:32,178 INFO L231 Difference]: Finished difference. Result has 446 places, 367 transitions, 8788 flow [2022-11-23 03:43:32,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=8263, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8788, PETRI_PLACES=446, PETRI_TRANSITIONS=367} [2022-11-23 03:43:32,178 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 412 predicate places. [2022-11-23 03:43:32,179 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 367 transitions, 8788 flow [2022-11-23 03:43:32,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 125.0) internal successors, (2000), 16 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:32,179 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:32,179 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:32,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-23 03:43:32,179 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:32,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:32,180 INFO L85 PathProgramCache]: Analyzing trace with hash 407247634, now seen corresponding path program 17 times [2022-11-23 03:43:32,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:32,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663273477] [2022-11-23 03:43:32,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:32,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:33,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:33,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:33,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663273477] [2022-11-23 03:43:33,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663273477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:33,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:33,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:43:33,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658356548] [2022-11-23 03:43:33,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:33,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:43:33,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:33,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:43:33,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:43:34,571 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:43:34,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 367 transitions, 8788 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:34,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:34,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:43:34,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:36,380 INFO L130 PetriNetUnfolder]: 430/1374 cut-off events. [2022-11-23 03:43:36,380 INFO L131 PetriNetUnfolder]: For 43149/43149 co-relation queries the response was YES. [2022-11-23 03:43:36,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14132 conditions, 1374 events. 430/1374 cut-off events. For 43149/43149 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 11070 event pairs, 77 based on Foata normal form. 1/1372 useless extension candidates. Maximal degree in co-relation 13831. Up to 520 conditions per place. [2022-11-23 03:43:36,396 INFO L137 encePairwiseOnDemand]: 292/305 looper letters, 97 selfloop transitions, 295 changer transitions 0/393 dead transitions. [2022-11-23 03:43:36,396 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 393 transitions, 9995 flow [2022-11-23 03:43:36,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 03:43:36,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-23 03:43:36,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2724 transitions. [2022-11-23 03:43:36,400 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4252927400468384 [2022-11-23 03:43:36,400 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2724 transitions. [2022-11-23 03:43:36,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2724 transitions. [2022-11-23 03:43:36,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:36,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2724 transitions. [2022-11-23 03:43:36,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 129.71428571428572) internal successors, (2724), 21 states have internal predecessors, (2724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:36,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 305.0) internal successors, (6710), 22 states have internal predecessors, (6710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:36,406 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 305.0) internal successors, (6710), 22 states have internal predecessors, (6710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:36,406 INFO L175 Difference]: Start difference. First operand has 446 places, 367 transitions, 8788 flow. Second operand 21 states and 2724 transitions. [2022-11-23 03:43:36,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 393 transitions, 9995 flow [2022-11-23 03:43:36,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 393 transitions, 9682 flow, removed 6 selfloop flow, removed 16 redundant places. [2022-11-23 03:43:36,686 INFO L231 Difference]: Finished difference. Result has 453 places, 382 transitions, 9543 flow [2022-11-23 03:43:36,687 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=8481, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=280, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9543, PETRI_PLACES=453, PETRI_TRANSITIONS=382} [2022-11-23 03:43:36,687 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 419 predicate places. [2022-11-23 03:43:36,687 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 382 transitions, 9543 flow [2022-11-23 03:43:36,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:36,688 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:36,688 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:36,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-23 03:43:36,689 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:36,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:36,689 INFO L85 PathProgramCache]: Analyzing trace with hash 955606315, now seen corresponding path program 1 times [2022-11-23 03:43:36,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:36,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481685640] [2022-11-23 03:43:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:36,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:37,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:37,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:37,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481685640] [2022-11-23 03:43:37,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481685640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:37,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:37,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:43:37,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148477082] [2022-11-23 03:43:37,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:37,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:43:37,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:37,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:43:37,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:43:39,179 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 305 [2022-11-23 03:43:39,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 382 transitions, 9543 flow. Second operand has 14 states, 14 states have (on average 125.14285714285714) internal successors, (1752), 14 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:39,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:39,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 305 [2022-11-23 03:43:39,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:40,533 INFO L130 PetriNetUnfolder]: 456/1451 cut-off events. [2022-11-23 03:43:40,533 INFO L131 PetriNetUnfolder]: For 49458/49458 co-relation queries the response was YES. [2022-11-23 03:43:40,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15635 conditions, 1451 events. 456/1451 cut-off events. For 49458/49458 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 11858 event pairs, 90 based on Foata normal form. 4/1452 useless extension candidates. Maximal degree in co-relation 15312. Up to 514 conditions per place. [2022-11-23 03:43:40,549 INFO L137 encePairwiseOnDemand]: 294/305 looper letters, 263 selfloop transitions, 143 changer transitions 0/407 dead transitions. [2022-11-23 03:43:40,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 407 transitions, 10710 flow [2022-11-23 03:43:40,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:43:40,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-23 03:43:40,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1668 transitions. [2022-11-23 03:43:40,552 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42068095838587644 [2022-11-23 03:43:40,552 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1668 transitions. [2022-11-23 03:43:40,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1668 transitions. [2022-11-23 03:43:40,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:40,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1668 transitions. [2022-11-23 03:43:40,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 128.30769230769232) internal successors, (1668), 13 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:40,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:40,555 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 305.0) internal successors, (4270), 14 states have internal predecessors, (4270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:40,555 INFO L175 Difference]: Start difference. First operand has 453 places, 382 transitions, 9543 flow. Second operand 13 states and 1668 transitions. [2022-11-23 03:43:40,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 407 transitions, 10710 flow [2022-11-23 03:43:40,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 407 transitions, 10235 flow, removed 25 selfloop flow, removed 22 redundant places. [2022-11-23 03:43:40,822 INFO L231 Difference]: Finished difference. Result has 441 places, 383 transitions, 9520 flow [2022-11-23 03:43:40,823 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=8988, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=139, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=9520, PETRI_PLACES=441, PETRI_TRANSITIONS=383} [2022-11-23 03:43:40,824 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 407 predicate places. [2022-11-23 03:43:40,824 INFO L495 AbstractCegarLoop]: Abstraction has has 441 places, 383 transitions, 9520 flow [2022-11-23 03:43:40,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 125.14285714285714) internal successors, (1752), 14 states have internal predecessors, (1752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:40,824 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:40,824 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:40,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-23 03:43:40,825 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:40,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:40,825 INFO L85 PathProgramCache]: Analyzing trace with hash -804982053, now seen corresponding path program 1 times [2022-11-23 03:43:40,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:40,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932726174] [2022-11-23 03:43:40,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:40,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:41,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:41,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:41,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932726174] [2022-11-23 03:43:41,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932726174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:41,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:41,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:43:41,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521597339] [2022-11-23 03:43:41,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:41,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:43:41,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:41,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:43:41,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:43:41,361 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 305 [2022-11-23 03:43:41,362 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 441 places, 383 transitions, 9520 flow. Second operand has 7 states, 7 states have (on average 136.42857142857142) internal successors, (955), 7 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:41,362 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:41,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 305 [2022-11-23 03:43:41,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:42,123 INFO L130 PetriNetUnfolder]: 416/1503 cut-off events. [2022-11-23 03:43:42,123 INFO L131 PetriNetUnfolder]: For 57749/57749 co-relation queries the response was YES. [2022-11-23 03:43:42,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14365 conditions, 1503 events. 416/1503 cut-off events. For 57749/57749 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 13101 event pairs, 55 based on Foata normal form. 90/1593 useless extension candidates. Maximal degree in co-relation 14084. Up to 560 conditions per place. [2022-11-23 03:43:42,137 INFO L137 encePairwiseOnDemand]: 298/305 looper letters, 177 selfloop transitions, 55 changer transitions 152/385 dead transitions. [2022-11-23 03:43:42,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 385 transitions, 9907 flow [2022-11-23 03:43:42,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:43:42,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 03:43:42,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 981 transitions. [2022-11-23 03:43:42,139 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4594847775175644 [2022-11-23 03:43:42,139 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 981 transitions. [2022-11-23 03:43:42,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 981 transitions. [2022-11-23 03:43:42,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:42,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 981 transitions. [2022-11-23 03:43:42,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 140.14285714285714) internal successors, (981), 7 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:42,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 305.0) internal successors, (2440), 8 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:42,141 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 305.0) internal successors, (2440), 8 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:42,141 INFO L175 Difference]: Start difference. First operand has 441 places, 383 transitions, 9520 flow. Second operand 7 states and 981 transitions. [2022-11-23 03:43:42,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 385 transitions, 9907 flow [2022-11-23 03:43:42,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 385 transitions, 9441 flow, removed 25 selfloop flow, removed 20 redundant places. [2022-11-23 03:43:42,380 INFO L231 Difference]: Finished difference. Result has 429 places, 228 transitions, 5344 flow [2022-11-23 03:43:42,380 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=8610, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5344, PETRI_PLACES=429, PETRI_TRANSITIONS=228} [2022-11-23 03:43:42,381 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 395 predicate places. [2022-11-23 03:43:42,381 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 228 transitions, 5344 flow [2022-11-23 03:43:42,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.42857142857142) internal successors, (955), 7 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:42,381 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:42,381 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:42,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-23 03:43:42,381 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:42,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:42,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2017073940, now seen corresponding path program 18 times [2022-11-23 03:43:42,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:42,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078780812] [2022-11-23 03:43:42,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:42,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:43,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:43,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078780812] [2022-11-23 03:43:43,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078780812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:43,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:43,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:43:43,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040687410] [2022-11-23 03:43:43,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:43,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:43:43,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:43,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:43:43,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:43:44,971 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 305 [2022-11-23 03:43:44,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 228 transitions, 5344 flow. Second operand has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:44,977 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:44,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 305 [2022-11-23 03:43:44,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:46,209 INFO L130 PetriNetUnfolder]: 175/832 cut-off events. [2022-11-23 03:43:46,209 INFO L131 PetriNetUnfolder]: For 23689/23689 co-relation queries the response was YES. [2022-11-23 03:43:46,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8058 conditions, 832 events. 175/832 cut-off events. For 23689/23689 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6706 event pairs, 78 based on Foata normal form. 1/833 useless extension candidates. Maximal degree in co-relation 7935. Up to 414 conditions per place. [2022-11-23 03:43:46,217 INFO L137 encePairwiseOnDemand]: 293/305 looper letters, 113 selfloop transitions, 119 changer transitions 0/233 dead transitions. [2022-11-23 03:43:46,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 233 transitions, 5871 flow [2022-11-23 03:43:46,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:43:46,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-23 03:43:46,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1948 transitions. [2022-11-23 03:43:46,219 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42579234972677593 [2022-11-23 03:43:46,219 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1948 transitions. [2022-11-23 03:43:46,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1948 transitions. [2022-11-23 03:43:46,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:46,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1948 transitions. [2022-11-23 03:43:46,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 129.86666666666667) internal successors, (1948), 15 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:46,223 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:46,223 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 305.0) internal successors, (4880), 16 states have internal predecessors, (4880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:46,224 INFO L175 Difference]: Start difference. First operand has 429 places, 228 transitions, 5344 flow. Second operand 15 states and 1948 transitions. [2022-11-23 03:43:46,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 233 transitions, 5871 flow [2022-11-23 03:43:46,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 233 transitions, 5367 flow, removed 67 selfloop flow, removed 50 redundant places. [2022-11-23 03:43:46,329 INFO L231 Difference]: Finished difference. Result has 362 places, 229 transitions, 5140 flow [2022-11-23 03:43:46,330 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=4868, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=5140, PETRI_PLACES=362, PETRI_TRANSITIONS=229} [2022-11-23 03:43:46,330 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 328 predicate places. [2022-11-23 03:43:46,330 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 229 transitions, 5140 flow [2022-11-23 03:43:46,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 128.14285714285714) internal successors, (1794), 14 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:46,330 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:46,330 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:46,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-23 03:43:46,331 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:46,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:46,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1111866945, now seen corresponding path program 2 times [2022-11-23 03:43:46,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:46,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394477019] [2022-11-23 03:43:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:46,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:46,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:46,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:46,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394477019] [2022-11-23 03:43:46,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394477019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:46,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:46,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:43:46,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050162545] [2022-11-23 03:43:46,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:46,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:43:46,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:46,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:43:46,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:43:47,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 305 [2022-11-23 03:43:47,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 229 transitions, 5140 flow. Second operand has 7 states, 7 states have (on average 135.42857142857142) internal successors, (948), 7 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:47,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:47,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 305 [2022-11-23 03:43:47,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:47,562 INFO L130 PetriNetUnfolder]: 154/797 cut-off events. [2022-11-23 03:43:47,562 INFO L131 PetriNetUnfolder]: For 21593/21593 co-relation queries the response was YES. [2022-11-23 03:43:47,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6546 conditions, 797 events. 154/797 cut-off events. For 21593/21593 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6619 event pairs, 15 based on Foata normal form. 42/839 useless extension candidates. Maximal degree in co-relation 6453. Up to 351 conditions per place. [2022-11-23 03:43:47,568 INFO L137 encePairwiseOnDemand]: 297/305 looper letters, 86 selfloop transitions, 35 changer transitions 110/232 dead transitions. [2022-11-23 03:43:47,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 232 transitions, 5320 flow [2022-11-23 03:43:47,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:43:47,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-23 03:43:47,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1105 transitions. [2022-11-23 03:43:47,570 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45286885245901637 [2022-11-23 03:43:47,570 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1105 transitions. [2022-11-23 03:43:47,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1105 transitions. [2022-11-23 03:43:47,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:47,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1105 transitions. [2022-11-23 03:43:47,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 138.125) internal successors, (1105), 8 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) [2022-11-23 03:43:47,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:47,572 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 305.0) internal successors, (2745), 9 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:47,572 INFO L175 Difference]: Start difference. First operand has 362 places, 229 transitions, 5140 flow. Second operand 8 states and 1105 transitions. [2022-11-23 03:43:47,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 232 transitions, 5320 flow [2022-11-23 03:43:47,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 232 transitions, 4691 flow, removed 1 selfloop flow, removed 28 redundant places. [2022-11-23 03:43:47,635 INFO L231 Difference]: Finished difference. Result has 340 places, 113 transitions, 2130 flow [2022-11-23 03:43:47,635 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=3903, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2130, PETRI_PLACES=340, PETRI_TRANSITIONS=113} [2022-11-23 03:43:47,635 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 306 predicate places. [2022-11-23 03:43:47,635 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 113 transitions, 2130 flow [2022-11-23 03:43:47,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 135.42857142857142) internal successors, (948), 7 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:47,636 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:43:47,636 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:43:47,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-11-23 03:43:47,636 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-23 03:43:47,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:43:47,637 INFO L85 PathProgramCache]: Analyzing trace with hash 509266329, now seen corresponding path program 3 times [2022-11-23 03:43:47,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:43:47,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371949334] [2022-11-23 03:43:47,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:43:47,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:43:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:43:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:43:47,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:43:47,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371949334] [2022-11-23 03:43:47,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371949334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:43:47,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:43:47,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:43:47,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651142666] [2022-11-23 03:43:47,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:43:47,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:43:47,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:43:47,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:43:47,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:43:48,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 305 [2022-11-23 03:43:48,224 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 113 transitions, 2130 flow. Second operand has 7 states, 7 states have (on average 136.42857142857142) internal successors, (955), 7 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:48,224 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:43:48,224 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 305 [2022-11-23 03:43:48,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:43:48,482 INFO L130 PetriNetUnfolder]: 70/317 cut-off events. [2022-11-23 03:43:48,482 INFO L131 PetriNetUnfolder]: For 7676/7676 co-relation queries the response was YES. [2022-11-23 03:43:48,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2600 conditions, 317 events. 70/317 cut-off events. For 7676/7676 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1796 event pairs, 8 based on Foata normal form. 42/359 useless extension candidates. Maximal degree in co-relation 2513. Up to 123 conditions per place. [2022-11-23 03:43:48,483 INFO L137 encePairwiseOnDemand]: 299/305 looper letters, 0 selfloop transitions, 0 changer transitions 107/107 dead transitions. [2022-11-23 03:43:48,484 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 107 transitions, 2069 flow [2022-11-23 03:43:48,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:43:48,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 03:43:48,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 964 transitions. [2022-11-23 03:43:48,485 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45152224824355974 [2022-11-23 03:43:48,485 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 964 transitions. [2022-11-23 03:43:48,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 964 transitions. [2022-11-23 03:43:48,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:43:48,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 964 transitions. [2022-11-23 03:43:48,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 137.71428571428572) internal successors, (964), 7 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:48,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 305.0) internal successors, (2440), 8 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:48,487 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 305.0) internal successors, (2440), 8 states have internal predecessors, (2440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:48,487 INFO L175 Difference]: Start difference. First operand has 340 places, 113 transitions, 2130 flow. Second operand 7 states and 964 transitions. [2022-11-23 03:43:48,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 107 transitions, 2069 flow [2022-11-23 03:43:48,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 107 transitions, 1387 flow, removed 13 selfloop flow, removed 79 redundant places. [2022-11-23 03:43:48,502 INFO L231 Difference]: Finished difference. Result has 180 places, 0 transitions, 0 flow [2022-11-23 03:43:48,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=305, PETRI_DIFFERENCE_MINUEND_FLOW=1169, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=180, PETRI_TRANSITIONS=0} [2022-11-23 03:43:48,503 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 146 predicate places. [2022-11-23 03:43:48,503 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 0 transitions, 0 flow [2022-11-23 03:43:48,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 136.42857142857142) internal successors, (955), 7 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:43:48,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2022-11-23 03:43:48,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-11-23 03:43:48,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-23 03:43:48,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-23 03:43:48,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-23 03:43:48,517 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-23 03:43:48,518 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-23 03:43:48,518 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-23 03:43:48,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-11-23 03:43:48,518 INFO L444 BasicCegarLoop]: Path program histogram: [18, 17, 14, 6, 4, 3, 3, 2, 1, 1, 1, 1, 1] [2022-11-23 03:43:48,524 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 03:43:48,524 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:43:48,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:43:48 BasicIcfg [2022-11-23 03:43:48,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:43:48,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:43:48,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:43:48,528 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:43:48,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:46" (3/4) ... [2022-11-23 03:43:48,531 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:43:48,537 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2022-11-23 03:43:48,542 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2022-11-23 03:43:48,543 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-23 03:43:48,543 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 03:43:48,544 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:43:48,586 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:43:48,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:43:48,590 INFO L158 Benchmark]: Toolchain (without parser) took 304192.30ms. Allocated memory was 117.4MB in the beginning and 989.9MB in the end (delta: 872.4MB). Free memory was 89.0MB in the beginning and 943.0MB in the end (delta: -854.1MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2022-11-23 03:43:48,590 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:43:48,591 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1078.21ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 88.8MB in the beginning and 103.3MB in the end (delta: -14.6MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2022-11-23 03:43:48,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.00ms. Allocated memory is still 146.8MB. Free memory was 103.3MB in the beginning and 99.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:43:48,591 INFO L158 Benchmark]: Boogie Preprocessor took 47.17ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 97.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:43:48,592 INFO L158 Benchmark]: RCFGBuilder took 914.94ms. Allocated memory is still 146.8MB. Free memory was 97.1MB in the beginning and 68.9MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 03:43:48,592 INFO L158 Benchmark]: TraceAbstraction took 301998.69ms. Allocated memory was 146.8MB in the beginning and 989.9MB in the end (delta: 843.1MB). Free memory was 68.6MB in the beginning and 946.2MB in the end (delta: -877.6MB). Peak memory consumption was 554.8MB. Max. memory is 16.1GB. [2022-11-23 03:43:48,592 INFO L158 Benchmark]: Witness Printer took 61.56ms. Allocated memory is still 989.9MB. Free memory was 946.2MB in the beginning and 943.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:43:48,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1078.21ms. Allocated memory was 117.4MB in the beginning and 146.8MB in the end (delta: 29.4MB). Free memory was 88.8MB in the beginning and 103.3MB in the end (delta: -14.6MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.00ms. Allocated memory is still 146.8MB. Free memory was 103.3MB in the beginning and 99.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.17ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 97.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 914.94ms. Allocated memory is still 146.8MB. Free memory was 97.1MB in the beginning and 68.9MB in the end (delta: 28.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 301998.69ms. Allocated memory was 146.8MB in the beginning and 989.9MB in the end (delta: 843.1MB). Free memory was 68.6MB in the beginning and 946.2MB in the end (delta: -877.6MB). Peak memory consumption was 554.8MB. Max. memory is 16.1GB. * Witness Printer took 61.56ms. Allocated memory is still 989.9MB. Free memory was 946.2MB in the beginning and 943.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.9s, 144 PlacesBefore, 34 PlacesAfterwards, 139 TransitionsBefore, 27 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 8 FixpointIterations, 44 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 132 TotalNumberOfCompositions, 10044 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4844, independent: 4496, independent conditional: 0, independent unconditional: 4496, dependent: 253, dependent conditional: 0, dependent unconditional: 253, unknown: 95, unknown conditional: 0, unknown unconditional: 95] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2840, independent: 2761, independent conditional: 0, independent unconditional: 2761, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 25, unknown conditional: 0, unknown unconditional: 25] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2840, independent: 2718, independent conditional: 0, independent unconditional: 2718, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 122, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 25, unknown conditional: 0, unknown unconditional: 25] , SemanticIndependenceRelation.Query Time [ms]: [ total: 53625, independent: 236, independent conditional: 0, independent unconditional: 236, dependent: 568, dependent conditional: 0, dependent unconditional: 568, unknown: 52821, unknown conditional: 0, unknown unconditional: 52821] ], Cache Queries: [ total: 4844, independent: 1735, independent conditional: 0, independent unconditional: 1735, dependent: 199, dependent conditional: 0, dependent unconditional: 199, unknown: 2910, unknown conditional: 0, unknown unconditional: 2910] , Statistics on independence cache: Total cache size (in pairs): 134, Positive cache size: 116, Positive conditional cache size: 0, Positive unconditional cache size: 116, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 11, Unknown conditional cache size: 0, Unknown unconditional cache size: 11 - PositiveResult [Line: 1700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1700]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 185 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 301.9s, OverallIterations: 72, TraceHistogramMax: 1, PathProgramHistogramMax: 18, EmptinessCheckTime: 0.0s, AutomataDifference: 167.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 64.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25016 SdHoareTripleChecker+Valid, 108.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21250 mSDsluCounter, 25067 SdHoareTripleChecker+Invalid, 95.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24445 mSDsCounter, 3318 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111720 IncrementalHoareTripleChecker+Invalid, 115038 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3318 mSolverCounterUnsat, 622 mSDtfsCounter, 111720 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1440 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1332 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3714 ImplicationChecksByTransitivity, 40.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9543occurred in iteration=67, InterpolantAutomatonStates: 972, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 67.3s InterpolantComputationTime, 1015 NumberOfCodeBlocks, 1015 NumberOfCodeBlocksAsserted, 72 NumberOfCheckSat, 943 ConstructedInterpolants, 0 QuantifiedInterpolants, 19598 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 72 InterpolantComputations, 72 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 03:43:48,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78a070f-f068-4a1f-8677-95cbc61c7ee9/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE